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Randi Holmestad

Randi Holmestad

Professor
Institutt for fysikk

randi.holmestad@ntnu.no
73593880 48170066 Realfagbygget, D4-153, Gløshaugen, Høgskoleringen 5
ResearchGate Google Scholar TEM Gemini Centre NORTEM
Om Publikasjoner Undervisning Formidling

Om

CV

Fagfelt/forskningsinteresser

  • Material/faststoff-fysikk
  • Transmisjonselektronmikroskopi og spektroskopi (TEM, HREM, EDS, EELS, STEM)
  • Elektrondiffraksjon, elektronkrystallografi (CBED, SPED) 
  • Karakterisering av uorganisk  materialer; aluminiumslegeringer, solcellematerialer,  funksjonelle oksider,  sammenheng mellom nano/mikrostruktur og egenskaper i materialer.
  • Modellering og simuleringer i materialfysikk

Kurs:

  • TFY4350 Introduction to nanotechnology (2018)
  • TFY4851 Eksperter i team (2018 ->)
  • Labansvarlig for TFY41xx Fysikk (2016 -2018)
  • FY8102 Elektronmikroskopi og diffraksjon (2000->)
  • TFY4220 Faste stoffers fysikk, (2011-2016)
  • Funksjonelle materialer (2007-2009)
  • Eksperter i team (2006-2010)
  • Fysikk (2001-2005)

Forskning:

Prof. Holmestad har utdannet 19 PhD studenter og 70 Master studenter. Hun har vært og er prosjektleder for flere prosjekter med finanisering fra Norges forskningsråd.   Web of Science (Oktober 2021) oppgir 240 publicasjoner, ~4100 siteringer og h-index lik 35.  Se også Google Scholar

Lenker:

  • TEM Gemini Centre
  • NORTEM
  • CASA
  • SFI PhysMet

Kompetanseord

  • Aluminium
  • Elektron krystallografi
  • Elektrondiffraksjon
  • Elektronmikroskopi
  • Funksjonelle materialer
  • Konstruksjonsmaterialer

Publikasjoner

  • Kronologisk
  • Etter kategori
  • Se alle publikasjoner i Cristin

2023

  • Bergh, Tina; Ånes, Håkon Wiik; Aune, Ragnhild; Wenner, Sigurd; Holmestad, Randi; Ren, Xiaobo; Vullum, Per Erik. (2023) Intermetallic Phase Layers in Cold Metal Transfer Aluminium-Steel Welds with an AlSiMn Filler Alloy. Materials transactions. volum 64 (2).
    Vitenskapelig artikkel
  • Frafjord, Jonas; Friis, Jesper; Holmestad, Randi; Ringdalen, Inga Gudem. (2023) On the Atomic Structure of the β′′ Precipitate by Density Functional Theory. Computational Materials Science. volum 217.
    Vitenskapelig artikkel

2022

  • Bakardjieva, Snejana; Mares, Jakub; Koci, Eva; Tolasz, Jakub; Fajgar, Radek; Ryukhtin, Vasyl; Klementova, Mariana; Michna, Štefan; Bibova, Hanna; Holmestad, Randi; Titorenkova, Rositsa; Čaplovičová, Mária. (2022) Effect of Multiply Twinned Ag(0) Nanoparticles on Photocatalytic Properties of TiO2 Nanosheets and TiO2 Nanostructured Thin Films. Nanomaterials. volum 12 (5).
    Vitenskapelig artikkel
  • Bergh, Tina; Arbo, Siri Marthe; Hagen, Anette Brocks; Blindheim, Jørgen; Friis, Jesper; Khalid, Muhammad Zeeshan; Ringdalen, Inga Gudem; Holmestad, Randi; Westermann, Ida; Vullum, Per Erik. (2022) On intermetallic phases formed during interdiffusion between aluminium alloys and stainless steel. Intermetallics (Barking). volum 142.
    Vitenskapelig artikkel
  • Ciancio, Regina; Dunin-Borkowski, Rafal E.; Snoeck, Etienne; Kociak, Matheiu; Holmestad, Randi; Verbeeck, Johan; Kirkland, Angus I.; Kothleitner, Gerald; Arbiol, Jordi. (2022) e-DREAM: the European Distributed Research Infrastructure for Advanced Electron Microscopy. Microscopy and Microanalysis. volum 28.
    Vitenskapelig artikkel
  • Dehghan-Niri, Roya; Tsakoumis, Nikolaos; Voronov, Alexey; Holmen, Anders; Holmestad, Randi; Vullum, Per Erik; Borg, Øyvind; Rytter, Erling; Rønning, Magnus; Walmsley, John. (2022) NanostructuralAnalysisof Co-Re/γ-Al2O3 Fischer-Tropsch Catalyst by TEM and XRD. ChemCatChem. volum 14 (11).
    Vitenskapelig artikkel
  • Gazizov, Marat; Belyakov, Andrey; Holmestad, Randi; Gazizova, M.Yu.; Krasnikov, V.S.; Bezborodova, P.A; Kaibyshev, Rustam. (2022) The deformation behavior of the {111}Al plates in an Al-Cu-Mg-Ag alloy. Acta Materialia. volum 243.
    Vitenskapelig artikkel
  • Gazizov, Marat; Boev, A.O.; Marioara, Calin Daniel; Holmestad, Randi; Gazizova, M.Yu.; Kaibyshev, Rustam. (2022) Edge interfaces of the Ω plates in a peak-aged Al-Cu-Mg-Ag alloy. Materials Characterization. volum 185.
    Vitenskapelig artikkel
  • Hagen, Anette Brocks; Wenner, Sigurd; Bjørge, Ruben; Wan, Di; Marioara, Calin Daniel; Holmestad, Randi; Vatne, Inga Ringdalen. (2022) Local mechanical properties and precipitation inhomogeneity in large-grained Al-Mg-Si alloy. Journal of Materials Science and Engineering: A.
    Vitenskapelig artikkel
  • Haugen, Randi Wenche; Gautun, Hanna Sofie Holme; Holmestad, Randi; Christiansen, Emil; Paso, Kristofer Gunnar. (2022) NTNU Kveld: NANO – en reise inn i et usynlig univers. NTNU Kveld: NANO – en reise inn i et usynlig univers [Kunstnerisk og museal presentasjon] . NTNU Vitenskapsmuseet; Dokkhuset scene, Trondheim. 2022-09-07 - 2022-09-07.
    Annen presentasjon
  • Hell, Christoph Martin; Søreide, Hanne-Sofie Marie Scisly; Bjørge, Ruben; Marioara, Calin Daniel; Li, Yanjun; Holmestad, Randi. (2022) Influence of natural aging and ramping before artificial aging on the microstructure of two different 6xxx alloys. Journal of Materials Research and Technology (JMR&T). volum 21.
    Vitenskapelig artikkel
  • Shah, Sohail; Thronsen, Elisabeth; Hatzoglou, Constantinos; Wenner, Sigurd; Marioara, Calin Daniel; Holmestad, Randi; Holmedal, Bjørn. (2022) Effect of cyclic ageing on the early-stage clustering in Al–Zn–Mg(-Cu) alloys. Materials Science & Engineering: A. volum 846.
    Vitenskapelig artikkel
  • Thronsen, Elisabeth; Bergh, Tina; Christiansen, Emil; Thorsen, Thor Inge; Van Helvoort, Antonius; Holmestad, Randi. (2022) Scanning Precession Electron Diffraction and What We Get Out of Such Data in Studies of Aluminium Alloys. Microscopy and Microanalysis. volum 28.
    Vitenskapelig artikkel
  • Thronsen, Elisabeth; Mørkeseth, Hanne; Marioara, Calin Daniel; Minakuchi, Kazuhiro; Katsumi, Tetsuya; Marthinsen, Knut; Matsuda, Kenji; Holmestad, Randi. (2022) The Effect of Small Additions of Fe and Heavy Deformation on the Precipitation in an Al–1.1Mg–0.5Cu–0.3Si At. Pct Alloy. Metallurgical and Materials Transactions A. volum 53 (9).
    Vitenskapelig artikkel
  • Tvedt, Haakon; Marioara, Calin Daniel; Thronsen, Elisabeth; Hell, Christoph Martin; Andersen, Sigmund Jarle; Holmestad, Randi. (2022) AutomAl 6000: Semi-automatic structural labelling of HAADF-STEM images of precipitates in Al–Mg–Si(–Cu) alloys. Ultramicroscopy. volum 236.
    Vitenskapelig artikkel

2021

  • Celotto, Ambra; Grong, Øystein; Holmestad, Randi; Sørhaug, Jørgen A; Torgersen, Jan; Vullum, Per Erik; Berto, Filippo. (2021) Preliminary in-situ study of FIB-assisted method for aluminium solid-state welding at the microscale. Procedia Structural Integrity. volum 33.
    Vitenskapelig artikkel
  • Chen, Xuanliang; Daehan, Kim; O, Minho; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Lervik, Adrian; Holmestad, Randi; Kobayashi, Equo. (2021) Effect of pre-deformation on age-hardening behaviors in an Al-Mg-Cu alloy. Materials Science & Engineering: A. volum 820.
    Vitenskapelig artikkel
  • Chen, Xuanliang; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Friis, Jesper; Lervik, Adrian; Holmestad, Randi; Kobayashi, Equo. (2021) Data on atomic structures of precipitates in an Al-Mg-Cu alloy studied by high resolution transmission electron microscopy and first-principles calculations. Data in Brief. volum 34 (106748).
    Vitenskapelig artikkel
  • Chen, Xuanliang; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Friis, Jesper; Lervik, Adrian; Holmestad, Randi; Kobayashi, Equo. (2021) Precipitation processes and structural evolutions of various GPB zones and two types of S phases in a cold-rolled Al-Mg-Cu alloy. Materials & design. volum 199.
    Vitenskapelig artikkel
  • Chen, Xuanliang; Mørtsell, Eva Anne; Sunde, Jonas Kristoffer; Minho, O.; Marioara, Calin Daniel; Holmestad, Randi; Kobayashi, Equo. (2021) Enhanced mechanical properties in 6082 aluminum alloy processed by cyclic deformation. Metals. volum 11 (11).
    Vitenskapelig artikkel
  • Frafjord, Jonas; Ringdalen, Inga Gudem; Hopperstad, Odd Sture; Holmestad, Randi; Friis, Jesper. (2021) Corrigendum to “First principles calculations of pressure dependent yielding in solute strengthened aluminium alloys” [Comput. Mater. Sci. 184 (2020) 109902] (Computational Materials Science (2020) 184, (S0927025620303931), (10.1016/j.commatsci.2020.109902)). Computational Materials Science. volum 188.
    Errata
  • Gazizov, M R; Holmestad, Randi; Marioara, Calin Daniel; Kaibyshev, R O. (2021) Quantitative analysis of {100}Al plate/lath- and <100>Al rod-shaped precipitates in an aged Al-Cu-Mg-Si alloy using TEM. IOP Conference Series: Materials Science and Engineering. volum 1014 (012013).
    Vitenskapelig artikkel
  • Gazizov, M.R.; Boev, A.O.; Marioara, Calin Daniel; Holmestad, Randi; Aksyonov, D.A.; Gazizova, M.Yu.; Kaibyshev, R.O.. (2021) Precipitate/matrix incompatibilities related to the {111}Al Ω plates in an Al-Cu-Mg-Ag alloy. Materials Characterization. volum 182.
    Vitenskapelig artikkel
  • Kim, DaeHan; Kim, JaeHwang; Wenner, Sigurd; Thronsen, Elisabeth; Marioara, Calin Daniel; Holmestad, Randi; Kobayashi, Equo. (2021) Precipitation behavior of Al-Si-Cu-Mg(-Fe) alloys by a deformation-semisolid extrusion process. Materials Characterization. volum 173.
    Vitenskapelig artikkel
  • Lu, Feng; Sunde, Jonas Kristoffer; Marioara, Calin Daniel; Holmestad, Randi; Holmedal, Bjørn. (2021) An improved modelling framework for strength and work hardening of precipitate strengthened Al–Mg–Si alloys. Materials Science & Engineering: A. volum 832.
    Vitenskapelig artikkel
  • Ou, Yizi; Jiang, Yong; Wang, Yiren; Liu, Zhengqing; Lervik, Adrian; Holmestad, Randi. (2021) Vacancy and solute co-segregated η1 interface in over-aged Al-Zn-Mg alloys. Acta Materialia. volum 218.
    Vitenskapelig artikkel
  • Sandnes, Lise; Bergh, Tina; Grong, Øystein; Holmestad, Randi; Vullum, Per Erik; Berto, Filippo. (2021) Interface Microstructure and Tensile Properties of a Third Generation Aluminium-Steel Butt Weld Produced Using the Hybrid Metal Extrusion & Bonding (HYB) Process. Materials Science & Engineering: A. volum 809.
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Lu, Feng; Marioara, Calin Daniel; Holmedal, Bjørn; Holmestad, Randi. (2021) Linking mechanical properties to precipitate microstructure in three Al-Mg-Si(-Cu) alloys. Materials Science & Engineering: A. volum 807.
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Marioara, Calin Daniel; Wenner, Sigurd; Holmestad, Randi. (2021) On the microstructural origins of improvements in conductivity by heavy deformation and ageing of Al-Mg-Si alloy 6101. Materials Characterization. volum 176.
    Vitenskapelig artikkel
  • Thronsen, Elisabeth; Frafjord, Jonas; Friis, Jesper; Marioara, Calin Daniel; Wenner, Sigurd; Andersen, Sigmund Jarle; Holmestad, Randi. (2021) Studying GPI zones in Al-Zn-Mg alloys by 4D-STEM. Materials Characterization. volum 185.
    Vitenskapelig artikkel
  • Vatanparast, Maryam; Shao, Yu-Tsun; Rajpalke, Mohana; Fimland, Bjørn-Ove; Reenaas, Turid Dory; Holmestad, Randi; Vullum, Per Erik; Zuo, Jian Min. (2021) Detecting minute amounts of nitrogen in GaNAs thin films using STEM and CBED. Ultramicroscopy.
    Vitenskapelig artikkel

2020

  • Bergh, Tina; Sandnes, Lise; Johnstone, Duncan Neil; Grong, Øystein; Berto, Filippo; Holmestad, Randi; Midgley, Paul Anthony; Vullum, Per Erik. (2020) Microstructural and mechanical characterisation of a second generation hybrid metal extrusion & bonding aluminium-steel butt joint. Materials Characterization.
    Vitenskapelig artikkel
  • Christiansen, Emil; Marioara, Calin Daniel; Ringdalen, Inga Gudem; Bjørge, Ruben; Holmedal, Bjørn; Hopperstad, Odd Sture; Holmestad, Randi. (2020) Detailed investigation of the shearing mechanism of β" precipitates in Al-Mg-Si alloys. MATEC Web of Conferences. volum 326.
    Vitenskapelig artikkel
  • Christiansen, Emil; Ringdalen, Inga Gudem; Bjørge, Ruben; Marioara, Calin Daniel; Holmestad, Randi. (2020) Multislice image simulations of sheared needle‐like precipitates in an Al‐Mg‐Si alloy. Journal of Microscopy. volum 279 (3).
    Vitenskapelig artikkel
  • Frafjord, Jonas; Dumoulin, Stephane; Wenner, Sigurd; Ringdalen, Inga Gudem; Holmestad, Randi; Friis, Jesper. (2020) Fully resolved strain field of the β’’ precipitate calculated by density functional theory. Computational Materials Science. volum 187.
    Vitenskapelig artikkel
  • Frafjord, Jonas; Ringdalen, Inga Gudem; Hopperstad, Odd Sture; Holmestad, Randi; Friis, Jesper. (2020) First principle calculations of pressure dependent yielding in solute strengthened aluminium alloys. Computational Materials Science. volum 184.
    Vitenskapelig artikkel
  • Gazizov, Marat; Boev, A.O.; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi; Kaibyshev, Rustam; Aksyonov, D.A.; Krasnikov, V.S.. (2020) The unique hybrid precipitate in a peak-aged Al-Cu-Mg-Ag alloy. Scripta Materialia. volum 194.
    Vitenskapelig artikkel
  • Gazizov, Marat; Marioara, Calin Daniel; Friis, Jesper; Wenner, Sigurd; Holmestad, Randi; Kaibyshev, Rustam. (2020) Unique hybrid precipitate structures forming in an Al–Cu–Mg–Si alloy. Journal of Alloys and Compounds. volum 826.
    Vitenskapelig artikkel
  • Lervik, Adrian; Danbolt, Turid; Furu, Trond; Holmestad, Randi; Lunder, Otto. (2020) Comparing intergranular corrosion in Al‐Mg‐Si‐Cu alloys with and without α‐Al(Fe,Mn,Cu)Si particles. Materials and corrosion - Werkstoffe und Korrosion. volum 72.
    Vitenskapelig artikkel
  • Lervik, Adrian; Thronsen, Elisabeth; Friis, Jesper; Marioara, Calin Daniel; Wenner, Sigurd; Bendo, Artenis; Matsuda, Kenji; Holmestad, Randi; Andersen, Sigmund Jarle. (2020) Atomic structure of solute clusters in Al-Zn-Mg alloys. Acta Materialia. volum 205.
    Vitenskapelig artikkel
  • Lervik, Adrian; Walmsley, John; Lodgaard, Lars; Marioara, Calin Daniel; Johnsen, Roy; Lunder, Otto; Holmestad, Randi. (2020) Stress Corrosion Cracking in an Extruded Cu-Free Al-Zn-Mg Alloy. Metals. volum 10 (9).
    Vitenskapelig artikkel
  • Lervik, Adrian; Wenner, Sigurd; Lunder, Otto; Marioara, Calin Daniel; Holmestad, Randi. (2020) Grain boundary structures and their correlation with intergranular corrosion in an extruded Al-Mg-Si-Cu alloy. Materials Characterization. volum 170.
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Marioara, Calin Daniel; Holmestad, Randi. (2020) The effect of low Cu additions on precipitate crystal structures in overaged Al-Mg-Si(-Cu) alloys. Materials Characterization. volum 160.
    Vitenskapelig artikkel
  • Wenner, Sigurd; Lervik, Adrian; Thronsen, Elisabeth; Marioara, Calin Daniel; Kubowicz, Stephan; Holmestad, Randi. (2020) Copper enrichment on aluminium surfaces after electropolishing and its effect on electron imaging and diffraction. Materials Characterization. volum 172.
    Vitenskapelig artikkel

2019

  • Bendo, Artenis; Maeda, Tomoyoshi; Matsuda, Kenji; Lervik, Adrian; Holmestad, Randi; Marioara, Calin Daniel; Nishimura, Katsuhiko; Nunomura, Norio; Toda, Hiroyuki; Yamaguchi, Masatake; Ikeda, Ken-ichi; Homma, Tomoyuki. (2019) Characterisation of structural similarities of precipitates in Mg–Zn and Al–Zn–Mg alloys systems. Philosophical Magazine. volum 99 (21).
    Vitenskapelig artikkel
  • Bendo, Artenis; Matsuda, Kenji; Lervik, Adrian; Tsuru, Tomohito; Nishimura, Katsuhiko; Nunomura, Norio; Holmestad, Randi; Marioara, Calin Daniel; Shimuzu, Kazuyuki; Toda, Hiroyuki; Yamaguchi, Masatake. (2019) An unreported precipitate orientation relationship in Al-Zn-Mg based alloys. Materials Characterization. volum 158:109958.
    Vitenskapelig artikkel
  • Bergh, Tina; Johnstone, Duncan N.; Crout, Phillip; Høgås, Simon; Midgley, Paul Anthony; Holmestad, Randi; Vullum, Per Erik; Van Helvoort, Antonius. (2019) Nanocrystal segmentation in scanning precession electron diffraction data. Journal of Microscopy.
    Vitenskapelig artikkel
  • Christiansen, Emil; Marioara, Calin Daniel; Holmedal, Bjørn; Hopperstad, Odd Sture; Holmestad, Randi. (2019) Nano-scale characterisation of sheared β” precipitates in a deformed Al-Mg-Si alloy. Scientific Reports. volum 9.
    Vitenskapelig artikkel
  • Gaukås, Nikolai Helth; Dale, Silje Marie; Ræder, Trygve Magnus; Toresen, Andreas; Holmestad, Randi; Glaum, Julia; Einarsrud, Mari-Ann; Grande, Tor. (2019) Controlling Phase Purity and Texture of K0.5Na0.5NbO3 Thin Films by Aqueous Chemical Solution Deposition. Materials. volum 12 (13).
    Vitenskapelig artikkel
  • Gazizov, Marat; Holmestad, Randi; Kaibyshev, R. (2019) Comparative analysis of the microstructure and mechanical properties of an Al-Cu-Mg-Ag alloy peak-aged at relatively low and high temperatures. IOP Conference Series: Materials Science and Engineering. volum 672 (1).
    Vitenskapelig artikkel
  • Gazizov, Marat; Marioara, Calin Daniel; Friis, Jesper; Wenner, Sigurd; Holmestad, Randi; Kaibyshev, Rustam. (2019) Precipitation behavior in an Al-Cu-Mg-Si alloy during ageing. Materials Science & Engineering: A. volum 767.
    Vitenskapelig artikkel
  • Grong, Øystein; Sandnes, Lise; Bergh, Tina; Vullum, Per Erik; Holmestad, Randi; Berto, Filippo. (2019) An analytical framework for modelling intermetallic compound (IMC) formation and optimising bond strength in aluminium‐steel welds. Material Design & Processing Communications (MDPC). volum 1 (3).
    Vitenskapelig artikkel
  • Lervik, Adrian; Marioara, Calin Daniel; Kadanik, Maria; Walmsley, JC; Milkereit, Benjamin; Holmestad, Randi. (2019) Precipitation in an extruded AA7003 aluminium alloy: Observations of 6xxx-type hardening phases. Materials & design. volum 186.
    Vitenskapelig artikkel
  • Matsuda, Kenji; Yasumoto, Toru; Bendo, Artenis; Tsuchiya, Taiki; Lee, Seungwon; Nishimura, Katsuhiko; Nunomura, Norio; Marioara, Calin Daniel; Lervik, Adrian; Holmestad, Randi; Toda, Hiroyuki; Yamaguchi, Masatake; Ikeda, Ken-ichi; Homma, Tomoyuki; Ikeno, Susumu. (2019) Effect of copper addition on precipitation behavior near grain boundary in Al-Zn-Mg alloy. Materials transactions. volum 60 (8).
    Vitenskapelig artikkel
  • Mørtsell, Eva Anne; Westermann, Ida; Marioara, Calin Daniel; Pedersen, Ketill Olav; Andersen, Sigmund Jarle; Røyset, Jostein; Holmedal, Bjørn; Holmestad, Randi. (2019) The effect of elastic strain and small plastic deformation on tensile strength of a lean Al-Mg-Si alloy. Metals. volum 9 (12).
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Christiansen, Emil; Thronsen, Elisabeth; Wenner, Sigurd; Marioara, Calin Daniel; Van Helvoort, Antonius; Holmestad, Randi. (2019) Scanning Precession Electron Diffraction to aid Aluminum Alloy Development. Microscopy and Microanalysis. volum 25.
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Johnstone, D.N.; Wenner, Sigurd; Van Helvoort, Antonius; Midgley, Paul A.; Holmestad, Randi. (2019) Crystallographic relationships of T-/S-phase aggregates in an Al–Cu–Mg–Ag alloy. Acta Materialia. volum 166.
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Wenner, Sigurd; Holmestad, Randi. (2019) In situ heating TEM observations of evolving nanoscale Al‐Mg‐Si‐Cu precipitates. Journal of Microscopy. volum 279 (3).
    Vitenskapelig artikkel
  • Thronsen, Elisabeth; Marioara, Calin Daniel; Sunde, Jonas Kristoffer; Minakuchi, Kazuhiro; Katsumi, Tetsuya; Erga, Iven; Andersen, Sigmund Jarle; Friis, Jesper; Marthinsen, Knut; Matsuda, Kenji; Holmestad, Randi. (2019) The effect of heavy deformation on the precipitation in an Al-1.3Cu-1.0Mg-0.4Si wt.% alloy. Materials & design. volum 186.
    Vitenskapelig artikkel
  • Wenner, Sigurd; Marioara, Calin Daniel; Nishimura, Katsuhiko; Matsuda, Kenji; Lee, Seungwon; Namiki, Takahiro; Watanabe, Isao; Matsuzaki, Teiichiro; Holmestad, Randi. (2019) Muon Spin Relaxation Study of Solute–Vacancy Interactions During Natural Aging of Al-Mg-Si-Cu Alloys. Metallurgical and Materials Transactions A. volum 50 (8).
    Vitenskapelig artikkel

2018

  • Andersen, Sigmund Jarle; Marioara, Calin Daniel; Friis, Jesper; Wenner, Sigurd; Holmestad, Randi. (2018) Precipitates in aluminium alloys. Advances in Physics: X. volum 3 (1).
    Vitenskapelig artikkel
  • Christiansen, Emil; Marioara, Calin Daniel; Marthinsen, Knut; Hopperstad, Odd Sture; Holmestad, Randi. (2018) Lattice rotations in precipitate free zones in an Al-Mg-Si alloy. Materials Characterization. volum 144.
    Vitenskapelig artikkel
  • Gazizov, Marat; Sunde, Jonas Kristoffer; Wenner, Sigurd; Holmestad, Randi; Kaibyshev, Rustam. (2018) Effect of thermomechanical processing on microstructure and mechanical properties in an Al-Cu-Mg-Si alloy. ICAA16 : Proceedings of the 16th International Aluminum Alloys Conference 2018.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Hatakeyama, Daichi; Nishimura, Katsuhiko; Matsuda, Kenji; Namiki, Takahiro; Lee, Seungwon; Nunomura, Norio; Aida, Tetsuo; Matsuzaki, Teiichiro; Holmestad, Randi; Wenner, Sigurd; Marioara, Calin Daniel. (2018) Effect of copper addition on the cluster formation behavior of Al-Mg-Si, Al-Zn-Mg, and Al-Mg-Ge in the natural aging. Metallurgical and Materials Transactions A. volum 49 (11).
    Vitenskapelig artikkel
  • Kemsies, Richard H; Milkereit, Benjamin; Wenner, Sigurd; Holmestad, Randi; Kessler, Olaf. (2018) In situ DSC investigation into the kinetics and microstructure of dispersoid formation in Al-Mn-Fe-Si(-Mg) alloys. Materials & design. volum 146.
    Vitenskapelig artikkel
  • Marioara, Calin Daniel; Lervik, Adrian; Grønvold, Julie; Lunder, Otto; Wenner, Sigurd; Furu, Trond; Holmestad, Randi. (2018) The correlation between intergranular corrosion resistance and copper content in the precipitate microstructure in an AA6005A alloy. Metallurgical and Materials Transactions A. volum 49 (10).
    Vitenskapelig artikkel
  • Nakayasu, Hiroki; Kobayashi, Equo; Sato, Tatsuo; Holmestad, Randi; Marthinsen, Knut. (2018) Orientation relationships of phase transformation in α-Al12Mn3Si pseudomorphs after plate-like Al6Mn precipitate in an AA3004 Al-Mn based alloy. Materials Characterization. volum 136.
    Vitenskapelig artikkel
  • Saito, Takeshi; Mørtsell, Eva Anne; Wenner, Sigurd; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Friis, Jesper; Matsuda, Kenji; Holmestad, Randi. (2018) Atomic structures of precipitates in Al–Mg–Si alloys with small additions of other elements. Advanced Engineering Materials. volum 20:1800125 (7).
    Vitenskapelig oversiktsartikkel/review
  • Sunde, Jonas Kristoffer; Marioara, Calin Daniel; Van Helvoort, Antonius; Holmestad, Randi. (2018) The evolution of precipitate crystal structures in an Al-Mg-Si(-Cu) alloy studied by a combined HAADF-STEM and SPED approach. Materials Characterization. volum 142.
    Vitenskapelig artikkel
  • Undheim, Espen; Maeda, Kensaku; Arnberg, Lars; Holmestad, Randi; Fujiwara, Kozo; Di Sabatino Lundberg, Marisa. (2018) In-situ studies of multicrystalline silicon nucleation and growth on alpha- and beta-Si3N4 coated substrates. Journal of Crystal Growth. volum 482.
    Vitenskapelig artikkel
  • Undheim, Espen; Vullum, Per Erik; Holmestad, Randi; Arnberg, Lars; Di Sabatino Lundberg, Marisa. (2018) Orientation relationship between b-Si3N4 and Si in multicrystalline silicon ingots for PV applications. Journal of Crystal Growth. volum 495.
    Vitenskapelig artikkel

2017

  • Andersen, Sigmund Jarle; Marioara, Calin Daniel; Friis, Jesper; Bjørge, Ruben; Du, Qiang; Ringdalen, Inga Gudem; Wenner, Sigurd; Mørtsell, Eva Anne; Holmestad, Randi; Saito, Takeshi; Røyset, Jostein; Reiso, Oddvin. (2017) Directionality and Column Arrangement Principles of Precipitates in Al-Mg-Si-(Cu) and Al-Mg-Cu Linked to Line Defect in Al. The 15th International Conference on Aluminium Alloys.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Andersen, Sigmund Jarle; Marioara, Calin Daniel; Friis, Jesper; Bjørge, Ruben; Du, Qiang; Ringdalen, Inga Gudem; Wenner, Sigurd; Mørtsell, Eva Anne; Holmestad, Randi; Saito, Takeshi; Røyset, Jostein; Reiso, Oddvin. (2017) Directionality and column arrangement principles of precipitates in Al-Mg-Si-(Cu) and Al-Mg-Cu linked to line defect in Al. Materials Science Forum. volum 877.
    Vitenskapelig artikkel
  • Balducci, E; Ceschini, L; Messieri, S; Wenner, Sigurd; Holmestad, Randi. (2017) Thermal stability of the lightweight 2099 Al-Cu-Li alloy: Tensile tests and microstructural investigations after overaging. Materials & design. volum 119.
    Vitenskapelig artikkel
  • Balducci, Eleonora; Ceschini, Lorella; Messieri, S; Wenner, Sigurd; Holmestad, Randi. (2017) Effects of overaging on microstructure and tensile properties of the 2055 Al-Cu-Li-Ag alloy. Materials Science & Engineering: A. volum 707.
    Vitenskapelig artikkel
  • Du, Qiang; Tang, Kai; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmedal, Bjørn; Holmestad, Randi. (2017) Modeling over-ageing in Al-Mg-Si alloys by a multi-phase CALPHAD-coupled Kampmann-Wagner Numerical model. Acta Materialia. volum 122.
    Vitenskapelig artikkel
  • Hallsteinsen, Ingrid; Moreau, Magnus; Chopdekar, R.V.; Christiansen, Emil; Nord, Magnus Kristofer; Vullum, Per Erik; Grepstad, Jostein; Holmestad, Randi; Selbach, Sverre Magnus; Scholl, A; Arenholz, E; Folven, Erik; Tybell, Per Thomas Martin. (2017) Magnetic domain configuration of (111)-oriented LaFeO3 epitaxial thin films. APL Materials. volum 5 (8).
    Vitenskapelig artikkel
  • Jones, Lewys; Wenner, Sigurd; Nord, Magnus Kristofer; Ninive, Per Harald; Løvvik, Ole Martin; Holmestad, Randi; Nellist, P.D.. (2017) Optimising multi-frame ADF-STEM for high-precision atomic-resolution strain mapping. Ultramicroscopy. volum 179.
    Vitenskapelig artikkel
  • Jones, Lewys; Wenner, Sigurd; Nord, Magnus Kristofer; Ninive, Per Harald; Løvvik, Ole Martin; Marioara, Calin Daniel; Holmestad, Randi; Nellist, Peter. (2017) Mapping the chemistry within, and the strain around, Al-alloy precipitates at atomic resolution by multi-frame scanning transmission electron microscopy. Microscopy and Microanalysis. volum 23.
    Vitenskapelig artikkel
  • Matsuda, Kenji; Kawai, Akihiro; Watanabe, Katsumi; Lee, Seungwon; Marioara, Calin Daniel; Wenner, Sigurd; Nishimura, Katsuhiko; Matsuzaki, Teiichiro; Nunomura, Norio; Sato, Tatsuo; Holmestad, Randi; Ikeno, Susumu. (2017) Effect of copper on fine precipitates at the early stage of aging in Al-Mg-X (X=Si, Ge, Zn) alloys. Keikinzoku. volum 67 (5).
    Vitenskapelig artikkel
  • Matsuda, Kenji; Kawai, Akihiro; Watanabe, Katsumi; Seungwon, Lee; Marioara, Calin Daniel; Wenner, Sigurd; Nishimura, Katsuhiko; Matsuzaki, Teiichiro; Nunomura, Norio; Sato, Tatsuo; Holmestad, Randi; Ikeno, Susumu. (2017) Extra electron diffraction spots caused by fine precipitates formed at the early stage of aging in Al-Mg-X (X=Si, Ge, Zn)-Cu alloys. Materials transactions. volum 58 (2).
    Vitenskapelig artikkel
  • Mørtsell, Eva Anne; Andersen, Sigmund Jarle; Friis, Jesper; Marioara, Calin Daniel; Holmestad, Randi. (2017) Atomistic details of precipitates in lean Al–Mg–Si alloys with trace additions of Ag and Ge studied by HAADF-STEM and DFT. Philosophical Magazine. volum 97 (11).
    Vitenskapelig artikkel
  • Nord, Magnus Kristofer; Vullum, Per Erik; MacLaren, I; Tybell, Per Thomas Martin; Holmestad, Randi. (2017) Atomap - Automated Analysis of Atomic Resolution STEM Images. Microscopy and Microanalysis. volum 23.
    Vitenskapelig artikkel
  • Nord, Magnus Kristofer; Vullum, Per Erik; MacLaren, Ian; Tybell, Per Thomas Martin; Holmestad, Randi. (2017) Atomap: a new software tool for the automated analysis of atomic resolution images using two-dimensional Gaussian fitting. Advanced Structural and Chemical Imaging. volum 3 (9).
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Johnstone, Duncan; Marioara, Calin Daniel; Van Helvoort, Antonius; Midgley, Paul A.; Holmestad, Randi. (2017) Scanning Precession Electron Diffraction Study of Hybrid Precipitates in a 6xxx Series Aluminium Alloy. Microscopy and Microanalysis. volum 23 (S1).
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Paulsen, Øyvind; Wenner, Sigurd; Holmestad, Randi. (2017) Precipitate statistics in an Al-Mg-Si-Cu alloy from scanning precession electron diffraction data. Journal of Physics: Conference Series (JPCS). volum 902 (1).
    Vitenskapelig artikkel
  • Vatanparast, Maryam; Egoavil, Ricardo; Reenaas, Turid Worren; Verbeeck, Johan; Holmestad, Randi; Vullum, Per Erik. (2017) Bandgap measurement of high refractive index materials by off-axis EELS. Ultramicroscopy. volum 182.
    Vitenskapelig artikkel
  • Vatanparast, Maryam; Vullum, Per Erik; Nord, Magnus Kristofer; Zuo, Jian Min; Reenaas, Turid Worren; Holmestad, Randi. (2017) Strategy for reliable strain measurement in InAs/GaAs materials from high-resolution Z-contrast STEM images. Journal of Physics: Conference Series (JPCS). volum 902.
    Vitenskapelig artikkel
  • Vatanparast, Maryam; Vullum, Per Erik; Reenaas, Turid Worren; Holmestad, Randi; Nord, Magnus Kristofer. (2017) Methodology to Improve Strain Measurement in III–V Semiconductors Materials. Microscopy and Microanalysis. volum 23 (S1).
    Vitenskapelig artikkel
  • Vullum, Per Erik; Nord, Magnus Kristofer; Vatanparast, Maryam; Thomassen, Sedsel Fretheim; Boothroyd, Chris; Holmestad, Randi; Fimland, Bjørn-Ove; Reenaas, Turid Worren. (2017) Quantitative strain analysis of InAs/GaAs quantum dot materials. Scientific Reports. volum 7.
    Vitenskapelig artikkel
  • Wenner, Sigurd; Jones, Lewys; Marioara, Calin Daniel; Holmestad, Randi. (2017) Atomic-resolution chemical mapping of ordered precipitates in Al alloys using energy-dispersive X-ray spectroscopy. Micron. volum 96.
    Vitenskapelig artikkel

2016

  • Balci, Mustafa H.; Aas, Lars Martin Sandvik; Kildemo, Morten; Sæterli, Ragnhild; Holmestad, Randi; Lindgren, Mikael; Grande, Tor; Einarsrud, Mari-Ann. (2016) White light emitting silicon nano-crystals-polymeric hybrid films prepared by single batch solution based method. Thin Solid Films. volum 603.
    Vitenskapelig artikkel
  • Chrominski, Witold; Wenner, Sigurd; Marioara, Calin Daniel; Holmestad, Randi; Lewandowska, Malgorzata. (2016) Strengthening mechanisms in ultrafine grained Al-Mg-Si alloy processed by hydrostatic extrusion – Influence of ageing temperature. Materials Science & Engineering: A. volum 669.
    Vitenskapelig artikkel
  • Cooil, Simon Phillip; Mørtsell, Eva Anne; Mazzola, Federico; Jorge, Marina; Wenner, Sigurd; Edmonds, M T; Thomsen, L; Klemm, HW; Peschel, G; Fuhrich, A; Prieto, M.; Schmidt, T.; Miwa, JA; Holmestad, Randi; Wells, Justin. (2016) Thermal migration of alloying agents in aluminium. Materials Research Express. volum 3 (11).
    Vitenskapelig artikkel
  • Hallsteinsen, Ingrid; Moreau, Magnus; Grutter, A; Nord, Martin; Vullum, Per Erik; Gilbert, DA; Bolstad, Torstein; Grepstad, Jostein; Holmestad, Randi; Selbach, Sverre Magnus; N'Diaye, AT; Kirby, BJ; Arenholz, E; Tybell, Per Thomas Martin. (2016) Concurrent magnetic and structural reconstructions at the interface of (111)-oriented L a0.7 S r0.3Mn O3/LaFe O3. Physical Review B. Condensed Matter and Materials Physics. volum 94 (20).
    Vitenskapelig artikkel
  • Hallsteinsen, Ingrid; Nord, Magnus Kristofer; Bolstad, Torstein; Vullum, Per Erik; Boschker, Jos Emiel; Longo, Paulo; Takahashi, Ryota; Holmestad, Randi; Lippmaa, Mikk; Tybell, Per Thomas Martin. (2016) Effect of polar (111)-oriented SrTiO3 on initial perovskite growth. Crystal Growth & Design. volum 16.
    Vitenskapelig artikkel
  • Mihara, Mami; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi; Kobayashi, Equo; Sato, Tatsuo. (2016) Precipitation in an Al-Mg-Cu alloy and the effect of a low amount of Ag. Materials Science & Engineering: A. volum 658.
    Vitenskapelig artikkel
  • Mørtsell, Eva Anne; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Ringdalen, Inga Gudem; Friis, Jesper; Wenner, Sigurd; Røyset, Jostein; Reiso, Oddvin; Holmestad, Randi. (2016) The effects and behaviour of Li and Cu alloying agents in lean Al-Mg-Si alloys. Journal of Alloys and Compounds. volum 699.
    Vitenskapelig artikkel
  • Mørtsell, Eva Anne; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Røyset, Jostein; Reiso, Oddvin; Holmestad, Randi. (2016) TEM and HAADF-STEM investigations on the effect of Cu and Ge additions on precipitation in 6xxx Al alloys. Microscopy and Analysis. volum 30 (1).
    Vitenskapelig artikkel
  • Mørtsell, Eva Anne; Wenner, Sigurd; Longo, Paulo; Andersen, Sigmund Jarle; Marioara, Calin Daniel; Holmestad, Randi. (2016) Elemental electron energy loss mapping of a precipitate in a multi-component aluminium alloy. Micron. volum 86.
    Vitenskapelig artikkel
  • Nematollahi, Mohammadreza; Yang, Xiaodong; Seim, Eivind; Vullum, Per Erik; Holmestad, Randi; Gibson, Ursula; Reenaas, Turid Worren. (2016) Compositional and structural properties of pulsed laser-deposited ZnS:Cr films. Applied Physics A: Materials Science & Processing. volum 122 (84).
    Vitenskapelig artikkel
  • Nord, Magnus Kristofer; Vullum, Per Erik; Hallsteinsen, Ingrid; Tybell, Per Thomas Martin; Holmestad, Randi. (2016) Assessing electron beam sensitivity for SrTiO3 and La0.7Sr0.3MnO3 using electron energy loss spectroscopy. Ultramicroscopy. volum 169.
    Vitenskapelig artikkel
  • Saito, Takeshi; Ehlers, Flemming J H; Lefebvre, Williams; Hernandez-Maldonado, David; Bjørge, Ruben; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Mørtsell, Eva Anne; Holmestad, Randi. (2016) Cu atoms suppress misfit dislocations at the β″/Al interface in Al-Mg-Si alloys. Scripta Materialia. volum 110.
    Vitenskapelig artikkel
  • Undheim, Espen; Ekstrøm, Kai Erik; Arnberg, Lars; Holmestad, Randi; Di Sabatino, Marisa. (2016) The effect of holding time on the size distribution of β-Si3N4 particles and nucleation undercooling in multicrystalline silicon. Physica Status Solidi. C, Current topics in solid state physics. volum 13 (10-12).
    Vitenskapelig artikkel
  • Wenner, Sigurd; Friis, Jesper; Marioara, Calin Daniel; Holmestad, Randi. (2016) Precipitation in a mixed Al-Cu-Mg/Al-Zn-Mg alloy system. Journal of Alloys and Compounds. volum 684.
    Vitenskapelig artikkel
  • Wenner, Sigurd; Holmestad, Randi. (2016) Accurately measured precipitate–matrix misfit in an Al–Mg–Si alloy by electron microscopy. Scripta Materialia. volum 118.
    Vitenskapelig artikkel

2015

  • Christiansen, Emil; Nord, Magnus Kristofer; Hallsteinsen, Ingrid; Vullum, Per Erik; Tybell, Per Thomas Martin; Holmestad, Randi. (2015) Structural investigation of epitaxial LaFeO_3 thin films on (111) oriented SrTiO_3 by transmission electron microscopy. Journal of Physics: Conference Series (JPCS). volum 644:012002.
    Vitenskapelig artikkel
  • Muggerud, Astrid Marie Flattum; Walmsley, John; Holmestad, Randi; Li, Yanjun. (2015) Combining HAADF STEM tomography and electron diffraction for studies of α-Al(Fe,Mn)Si dispersoids in 3xxx aluminium alloys. Philosophical Magazine. volum 95 (7).
    Vitenskapelig artikkel
  • Mørtsell, Eva Anne; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Røyset, Jostein; Reiso, Oddvin; Holmestad, Randi. (2015) Effects of Germanium, Copper, and Silver Substitutions on Hardness and Microstructure in Lean Al-Mg-Si Alloys. Metallurgical and Materials Transactions A. volum 46 (9).
    Vitenskapelig artikkel
  • Mørtsell, Eva Anne; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Røyset, Jostein; Reiso, Oddvin; Holmestad, Randi. (2015) The effect of Cu and Ge additions on strength and precipitation in a lean 6xxx aluminium alloy. Journal of Physics: Conference Series (JPCS). volum 644:012028.
    Vitenskapelig artikkel
  • Nishimura, Katsuhiko; Matsuda, Kenji; Komaki, R.; Nunomra, Norio; Wenner, Sigurd; Holmestad, Randi; Matsuzaki, Teiichiro; Watanabe, Isao; Pratt, Francis Laurence. (2015) Solute-vacancy clustering in Al-Mg-Si alloys studied by muon spin relaxation technique. Archives of Metallurgy and Materials. volum 60 (2A).
    Vitenskapelig artikkel
  • Nord, Magnus Kristofer; Vullum, Per Erik; Moreau, Magnus; Boschker, Jos Emiel; Selbach, Sverre Magnus; Holmestad, Randi; Tybell, Per Thomas Martin. (2015) Structural phases driven by oxygen vacancies at the La0.7Sr0.3MnO3/SrTiO3 hetero-interface. Applied Physics Letters. volum 106 (4).
    Vitenskapelig artikkel
  • Wenner, Sigurd; Friis, Jesper; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi. (2015) Structural modifications and electron beam damage in aluminium alloy precipitate θ'-Al2Cu. Philosophical Magazine. volum 95 (31).
    Vitenskapelig artikkel
  • Wenner, Sigurd; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Ervik, Martin; Holmestad, Randi. (2015) A hybrid aluminium alloy and its zoo of interacting nano-precipitates. Materials Characterization. volum 106.
    Vitenskapelig artikkel

2014

  • Arivazhagan, V; Parvathi, Manonmani; Rajesh, S; Sæterli, Ragnhild; Holmestad, Randi. (2014) Quantum confinement of PbSe nanocrystals embedded in a spacer ZnSe matrix for solar cell applications. Solar Energy. volum 106.
    Vitenskapelig artikkel
  • Ehlers, Flemming J H; Dumoulin, Stephane; Holmestad, Randi. (2014) 3D modelling of β'' in Al-Mg-Si: towards an atomistic level ab initio based examination of a full precipitate enclosed in a host lattice. Computational Materials Science. volum 91.
    Vitenskapelig artikkel
  • Ehlers, Flemming J H; Dumoulin, Stephane; Marthinsen, Knut; Holmestad, Randi. (2014) Interfacial and strain energy analysis from ab initio based hierarchical multi-scale modelling: the Al–Mg–Si alloy β'' phase. Materials Science Forum. volum 794-796.
    Vitenskapelig artikkel
  • Ehlers, Flemming J H; Wenner, Sigurd; Andersen, Sigmund Jarle; Marioara, Calin Daniel; Lefebvre, Williams; Boothroyd, Chris; Holmestad, Randi. (2014) Phase stabilization principle and precipitate-host lattice influences for Al-Mg-Si-Cu alloy precipitates. Journal of Materials Science. volum 49 (18).
    Vitenskapelig artikkel
  • Holmestad, Randi. (2014) Down to the atom, alloys by design. International innovations. volum 160.
    Populærvitenskapelig artikkel
  • Liu, M; Marioara, Calin Daniel; Holmestad, Randi; Banhart, John. (2014) Ageing characteristics of Al-Mg-(Ge,Si)-Cu alloys. Materials Science Forum. volum 794-796.
    Vitenskapelig artikkel
  • Marioara, Calin Daniel; Andersen, Sigmund Jarle; Røyset, Jostein; Reiso, Oddvin; Gulbrandsen-Dahl, Sverre; Nicolaisen, Tor-Erik; Opheim, Inge-Erland; Helgaker, Jan Fredrik; Holmestad, Randi. (2014) Improving thermal stability in Cu-containing Al-Mg-Si alloys by precipitate optimization. Metallurgical and Materials Transactions A. volum 45 (7).
    Vitenskapelig artikkel
  • Muggerud, Astrid Marie F; Li, Yanjun; Holmestad, Randi. (2014) Composition and orientation relationships of constituent particles in 3xxx aluminum alloys. Philosophical Magazine. volum 94 (6).
    Vitenskapelig artikkel
  • Muggerud, Astrid Marie Flattum; Li, Yanjun; Holmestad, Randi. (2014) Orientation studies of á-Al(Fe,Mn)Si dispersoids in 6xxx Al alloys. Materials Science Forum. volum 794-796.
    Vitenskapelig artikkel
  • Muggerud, Astrid Marie Flattum; Li, Yanjun; Holmestad, Randi; Andersen, Sigmund Jarle. (2014) Mackay icosahedron explaining orientation relationship of dispersoids in aluminium alloys. Acta Crystallographica Section B: Structural Science. volum 70 (5).
    Vitenskapelig artikkel
  • Mørtsell, Eva Anne; Westermann, Ida; Marioara, Calin Daniel; Pedersen, Ketill Olav; Andersen, Sigmund Jarle; Røyset, Jostein; Holmestad, Randi. (2014) The effect of elastic straining on a 6060 Aluminium alloy during natural or artificial ageing. Materials Science Forum. volum 794-796.
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  • Ninive, Per Harald; Strandlie, Are; Gulbrandsen-Dahl, Sverre; Lefebvre, Williams; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Friis, Jesper; Holmestad, Randi; Løvvik, Ole Martin. (2014) Detailed atomistic insight into the β″ phase in Al–Mg–Si alloys. Acta Materialia. volum 69.
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  • Nishimura, Katsuhiko; Matsuda, Kenji; Komaki, R; Nunomura, Norio; Wenner, Sigurd; Holmestad, Randi; Matsuzaki, Teiichiro; Watanabe, Isao; Pratt, Francis L.; Marioara, Calin Daniel. (2014) µSR study of Al-0.67%Mg-0.77%Si alloys. Journal of Physics: Conference Series (JPCS). volum 551 (1).
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  • Saito, Takeshi; Ehlers, Flemming J H; Lefebvre, Williams; Hernandez-Maldonado, D; Bjørge, Ruben; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi. (2014) HAADF-STEM and DFT investigations of the Zn-containing β'' phase in Al-Mg-Si alloys. Acta Materialia. volum 78.
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  • Saito, Takeshi; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Lefebvre, Williams; Holmestad, Randi. (2014) Aberration-corrected HAADF-STEM investigations of precipitate structures in Al-Mg-Si alloys with low Cu additions. Philosophical Magazine. volum 94 (5).
    Vitenskapelig artikkel
  • Saito, Takeshi; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Lefebvre, Williams; Holmestad, Randi. (2014) Structural investigation of precipitates with Cu and Zn atomic columns in Al-Mg-Si alloys by aberration-corrected HAADF-STEM. Journal of Physics: Conference Series (JPCS). volum 522 (1).
    Vitenskapelig artikkel
  • Saito, Takeshi; Marioara, Calin Daniel; Røyset, Jostein; Holmestad, Randi. (2014) Effect of low Cu addition and thermo-mechanical history on precipitation in Al-Mg-Si alloys. Materials Science Forum. volum 794-796.
    Vitenskapelig artikkel
  • Saito, Takeshi; Marioara, Calin Daniel; Røyset, Jostein; Holmestad, Randi. (2014) Influence of low Cu addition on quench sensitivity in Al-Mg-Si alloys. Advanced Materials Research. volum 922.
    Vitenskapelig artikkel
  • Saito, Takeshi; Marioara, Calin Daniel; Røyset, Jostein; Marthinsen, Knut; Holmestad, Randi. (2014) The effects of quench rate and pre-deformation on precipitation hardening in Al–Mg–Si alloys with different Cu amounts. Materials Science & Engineering: A. volum 609.
    Vitenskapelig artikkel
  • Saito, Takeshi; Wenner, Sigurd; Osmundsen, Elisa; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Røyset, Jostein; Lefebvre, Williams; Holmestad, Randi. (2014) The Effect of Zn on precipitation in Al-Mg-Si alloys. Philosophical Magazine. volum 94 (21).
    Vitenskapelig artikkel
  • Wenner, Sigurd; Marioara, Calin Daniel; Lefebvre, Williams; Ramasse, Quentin; Kepaptsoglou, Despoina Maria; Hage, Fredrik Sydow; Holmestad, Randi. (2014) Atomic-resolution elemental mapping of precipitates in a 7449 aluminium alloy. Materials Science Forum. volum 794-796.
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  • Wenner, Sigurd; Marioara, Calin Daniel; Ramasse, Quentin; Kepaptsoglou, Despoina Maria; Hage, Fredrik Sydow; Holmestad, Randi. (2014) Atomic-resolution electron energy loss studies of precipitates in an Al-Mg-Si-Cu-Ag alloy. Scripta Materialia. volum 74 (March).
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  • Wenner, Sigurd; Nishimura, Katsuhiko; Matsuda, Kenji; Matsuzaki, Teiichiro; Tomono, Dai; Pratt, Francis L.; Marioara, Calin Daniel; Holmestad, Randi. (2014) Clustering and Vacancy Behavior in High- and Low-Solute Al-Mg-Si Alloys. Metallurgical and Materials Transactions A. volum 45.
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2013

  • Arivazhagan, V; Parvathi, Manonmani; Rajesh, S; Sæterli, Ragnhild; Holmestad, Randi. (2013) Quantum confinement in two dimensional layers of PbSe/ZnSe multiple quantum well structures. Applied Physics Letters. volum 102 (24).
    Vitenskapelig artikkel
  • BALCI, Mustafa H.; Sæterli, Ragnhild; Maria, Jerome; Lindgren, Mikael; Holmestad, Randi; Grande, Tor; Einarsrud, Mari-Ann. (2013) Solution based synthesis of simple fcc Si nano-crystals under ambient conditions. Dalton Transactions. volum 42 (8).
    Vitenskapelig artikkel
  • Bjørge, Ruben; Holmestad, Randi. (2013) Precipitation in an Al-Mg-Si-Ge-Cu Alloy. Imaging and Microscopy. volum 4.
    Vitenskapelig oversiktsartikkel/review
  • Boschker, Jos Emiel; Monsen, Åsmund Fløystad; Nord, Magnus Kristofer; Mathieu, Roland; Grepstad, Jostein; Holmestad, Randi; Wahlström, Erik; Tybell, Thomas. (2013) In-plane structural order of domain engineered La0.7Sr0.3MnO3 thin films. Philosophical Magazine. volum 93 (13).
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  • Ehlers, Flemming J H; Dumoulin, Stephane; Marthinsen, Knut; Holmestad, Randi. (2013) Interface energy determination for the fully coherent β'' phase in Al-Mg-Si: making a case for a first principles based hybrid atomistic modelling scheme. Modelling and Simulation in Materials Science and Engineering. volum 21 (8).
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  • Ehlers, Flemming J H; Holmestad, Randi. (2013) Ab initio based interface modeling for fully coherent precipitates of arbitrary size in Al alloys. Computational Materials Science. volum 72.
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  • Hallsteinsen, Ingrid; Boschker, Jos Emiel; Nord, Magnus Kristofer; Lee, S; Rzchowski, M; Vullum, Per Erik; Grepstad, Jostein; Holmestad, Randi; Eom, CB; Tybell, Thomas. (2013) Surface stability of epitaxial La0.7Sr0.3MnO3 thin films on (111)-oriented SrTiO3. Journal of Applied Physics. volum 113 (18).
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  • Kim, JaeHwang; Marioara, Calin Daniel; Holmestad, Randi; Kobayashi, Equo; Sato, Tatsuo. (2013) Effects of Cu and Ag additions on age-hardening behavior during multi-step aging in Al-Mg-Si alloys. Materials Science & Engineering: A. volum 560.
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  • Muggerud, Astrid Marie F; Mørtsell, Eva Anne; Li, Yanjun; Holmestad, Randi. (2013) Dispersoid strengthening in AA3xxx alloys with varying Mn and Si content during annealing at low temperatures,. Materials Science & Engineering: A. volum 567.
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  • Pitt, Mark; Vullum, Per Erik; Sørby, Magnus Helgerud; Emerich, H.; Paskevicius, M.; Buckley, C. E.; Gray, E. MacA.; Walmsley, John; Holmestad, Randi; Hauback, Bjørn. (2013) Crystalline Al1-xTix phases in the hydrogen cycled NaAlH4+0.02TiCl(3) system. Philosophical Magazine. volum 93 (9).
    Vitenskapelig artikkel
  • Saito, Takeshi; Muraishi, Shinji; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Jostein, Røyset; Holmestad, Randi. (2013) The Effects of Low Cu Additions and Predeformation on the Precipitation in a 6060 Al-Mg-Si Alloy. Metallurgical and Materials Transactions A. volum 44A (9).
    Vitenskapelig artikkel
  • Wenner, Sigurd; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi. (2013) How calcium prevents precipitation hardening in Al–Mg–Si alloys. Materials Science & Engineering: A. volum 575.
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  • Wenner, Sigurd; Matsuda, Kenji; Nishimura, Katsuhiko; Matsuzaki, Teiichiro; Tomono, Dai; Pratt, Francis L.; Marioara, Calin Daniel; Holmestad, Randi. (2013) μSR experiments on Al–Mg–Si alloys. RIKEN Accelerator Progress Report. volum 46.
    Short communication
  • Wenner, Sigurd; Nishimura, Katsuhiko; Matsuda, Kenji; Matsuzaki, Teiichiro; Tomono, Dai; Pratt, Francis L.; Marioara, Calin Daniel; Holmestad, Randi. (2013) Muon kinetics in heat treated Al (–Mg)(–Si) alloys. Acta Materialia. volum 61 (16).
    Vitenskapelig artikkel

2012

  • Bjørge, Ruben; Andersen, Sigmund Jarle; Marioara, Calin Daniel; Etheridge, Joanne; Holmestad, Randi. (2012) Scanning transmission electron microscopy investigation of an Al-Mg-Si-Ge-Cu alloy. Philosophical Magazine. volum 92 (32).
    Vitenskapelig artikkel
  • Bjørge, Ruben; Dwyer, Christian; Weyland, Matthew; Nakashima, Philip N.H.; Etheridge, Joanne; Holmestad, Randi. (2012) Quantitative HAADF STEM study of β-like precipitates in an Al-Mg-Ge alloy. Journal of Physics: Conference Series (JPCS). volum 371.
    Vitenskapelig artikkel
  • Bjørge, Ruben; Dwyer, Christian; Weyland, Matthew; Nakashima, Philip N.H.; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Etheridge, Joanne; Holmestad, Randi. (2012) Aberration-corrected scanning transmission electron microscopy study of beta '-like precipitates in an Al-Mg-Ge alloy. Acta Materialia. volum 60 (6-7).
    Vitenskapelig artikkel
  • Holmestad, Randi; Bjørge, Ruben; Ehlers, Flemming J H; Torsæter, Malin; Marioara, Calin Daniel; Andersen, Sigmund Jarle. (2012) Characterization and structure of precipitates in 6xxx Aluminium Alloys. Journal of Physics: Conference Series (JPCS). volum 371.
    Vitenskapelig artikkel
  • Kauko, Hanne; Bjørge, Ruben; Holmestad, Randi; Van Helvoort, Antonius. (2012) Quantitative HAADF-STEM on heterostructured GaAs nanwires. Journal of Physics: Conference Series (JPCS). volum 371.
    Vitenskapelig artikkel
  • Marioara, Calin Daniel; Nakamura, J; Matsuda, K.; Andersen, Sigmund Jarle; Holmestad, Randi; Sato, T.; Kawabata, T; Ikeno, S.. (2012) HAADF-STEM study of beta '-type precipitates in an over-aged Al-Mg-Si-Ag alloy. Philosophical Magazine. volum 92 (9).
    Vitenskapelig artikkel
  • Martinsen, Fredrik A; Ehlers, Flemming J H; Torsæter, Malin; Holmestad, Randi. (2012) Reversal of the negative natural aging effect in Al-Mg-Si alloys. Acta Materialia. volum 60 (17).
    Vitenskapelig artikkel
  • Pitt, Mark; Vullum, Per Erik; Sørby, Magnus Helgerud; Blanchard, Didier; Sulic, M.P.; Emerich, H.; Paskevicius, Mark; Buckley, Craig E.; Walmsley, John; Holmestad, Randi; Hauback, Bjørn. (2012) The location of Ti containing phases after the completion of the NaAlH4 + xTiCl(3) milling process. Journal of Alloys and Compounds. volum 513.
    Vitenskapelig artikkel
  • Pitt, Mark; Vullum, Per Erik; Sørby, Magnus Helgerud; Emerich, H.; Paskevicius, Mark; Buckley, Craig E.; Gray, Evan MacA.; Walmsley, John; Holmestad, Randi; Hauback, Bjørn. (2012) Amorphous Al1-xTix, Al1-xVx, and Al1-xFex phases in the hydrogen cycled TiCl3, VCl3 and FeCl3 enhanced NaAlH4 systems. Journal of Alloys and Compounds. volum 521.
    Vitenskapelig artikkel
  • Pitt, Mark; Vullum, Per Erik; Sørby, Magnus Helgerud; Emerich, Herman; Paskevicius, Mark; Webb, Colin J.; Gray, Evan MacA.; Buckley, Craig E.; Walmsley, John; Holmestad, Randi; Hauback, Bjørn. (2012) Hydrogen absorption kinetics and structural features of NaAlH4 enhanced with transition-metal and Ti-based nanoparticles. International Journal of Hydrogen Energy. volum 37 (20).
    Vitenskapelig artikkel
  • Pitt, Mark; Vullum, Per Erik; Sørby, Magnus Helgerud; Emerich, Hermann; Paskevicius, M.; Buckley, C. E.; Gray, E. MacA.; Walmsley, John; Holmestad, Randi; Hauback, Bjørn. (2012) A structural review of nanoscopic Al1-xTMx phase formation in the TMCln enhanced NaAlH4 system. Journal of Alloys and Compounds. volum 527.
    Vitenskapelig artikkel
  • Pitt, Mark; Vullum, Per Erik; Sørby, Magnus Helgerud; Emerich, Hermann; Paskevicius, Mark; Buckley, Craig E.; Walmsley, John; Holmestad, Randi; Hauback, Bjørn. (2012) Hydrogen Absorption Kinetics of the Transition-Metal-Chloride-Enhanced NaAlH4 System. Journal of Physical Chemistry C. volum 116 (27).
    Vitenskapelig artikkel
  • Pitt, Mark; Vullum, Per Erik; Sørby, Magnus Helgerud; Sulic, M.P.; Emerich, H.; Paskevicius, Mark; Buckley, Craig E.; Walmsley, John; Holmestad, Randi; Hauback, Bjørn. (2012) Functionality of the nanoscopic crystalline Al/amorphous Al50Ti50 surface embedded composite observed in the NaAlH4 + xTiCl(3) system after milling. Journal of Alloys and Compounds. volum 514.
    Vitenskapelig artikkel
  • Sunde, Tor Olav Løveng; Garskaite, Edita; Otter, Benjamin; Fossheim, Helle Ervik; Sæterli, Ragnhild; Holmestad, Randi; Einarsrud, Mari-Ann; Grande, Tor. (2012) Transparent and conducting ITO thin films by spin coating of an aqueous precursor solution. Journal of Materials Chemistry. volum 22 (31).
    Vitenskapelig artikkel
  • Torsæter, Malin; Ehlers, Flemming J H; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi. (2012) Applying precipitate–host lattice coherency for compositional determination of precipitates in Al–Mg–Si–Cu alloys. Philosophical Magazine. volum 92 (31).
    Vitenskapelig artikkel
  • Weigand, Christian Carl; Tveit, Johannes; Ladam, Cecile; Holmestad, Randi; Grepstad, Jostein; Weman, Helge. (2012) Epitaxial relationships of ZnO nanostructures grown by Au-assisted pulsed laser deposition on c- and a-plane sapphire. Journal of Crystal Growth. volum 355 (1).
    Vitenskapelig artikkel
  • Wenner, Sigurd; Holmestad, Randi; Matsuda, Kenji; Nishimura, K.; Matsuzaki, T; Tomono, D; Pratt, FL; Marioara, Calin Daniel. (2012) Probing defects in Al-Mg-Si alloys using muon spin relaxation. Physical Review B. Condensed Matter and Materials Physics. volum 86 (10).
    Vitenskapelig artikkel
  • Wenner, Sigurd; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi. (2012) Effect of room temperature storage time on precipitation in Al-Mg-Si(-Cu) alloys with different Mg/Si ratios. International Journal of Materials Research - Zeitschrift für Metallkunde. volum 103 (8).
    Vitenskapelig artikkel

2011

  • Bjørge, Ruben; Nakashima, Philip N.H.; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Muddle, Barry C.; Etheridge, Joanne; Holmestad, Randi. (2011) Precipitates in an Al-Mg-Ge alloy studied by aberration-corrected scanning transmission electron microscopy. Acta Materialia. volum 59 (15).
    Vitenskapelig artikkel
  • Eberg, Espen; Van Helvoort, Antonius; Takahashi, Ryota; Gass, Mhairi; Mendis, Budhika; Bleloch, Andrew; Holmestad, Randi; Tybell, Thomas. (2011) Electron energy loss spectroscopy investigation of Pb and Ti hybridization with O at the PbTiO3/SrTiO3 interface. Journal of Applied Physics. volum 109 (3).
    Vitenskapelig artikkel
  • Madaro, Francesco; Sæterli, Ragnhild; Tolchard, Julian R; Einarsrud, Mari-Ann; Holmestad, Randi; Grande, Tor. (2011) Molten salt synthesis of K4Nb6O17, K2Nb4O11 and KNb3O8 crystals with needle- or plate-like morphology. CrysteEngComm. volum 13 (5).
    Vitenskapelig artikkel
  • Matsuda, Kenji; Nakamura, Junya; Kawabata, T; Ikeno, Susum; Sato, Tatsuo; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi. (2011) Effect of Additional Elements (Cu, Ag) on Precipitation in 6xxx (Al-Mg-Si) Alloys. Materials Science Forum. volum 706-709.
    Vitenskapelig artikkel
  • Nagayoshi, H; Nordmark, Heidi; Nishimura, S; Terashima, K; Marioara, Calin Daniel; Walmsley, John; Holmestad, Randi; Ulyashin, Alexander. (2011) Vapor-solid-solid Si nano-whiskers growth using pure hydrogen as the source gas. Thin Solid Films. volum 519 (14).
    Vitenskapelig artikkel
  • Nordmark, Heidi; Ulyashin, Alexander; Walmsley, John; Holmestad, Randi. (2011) H-initiated extended defects from plasma treatment: Comparison between c-Si and mc-Si. Journal of Physics: Conference Series (JPCS). volum 519.
    Vitenskapelig artikkel
  • Sæterli, Ragnhild; Flage-Larsen, Espen; Friis, Jesper; Løvvik, Ole Martin; Pacaud, Jerome; Marthinsen, Knut; Holmestad, Randi. (2011) Experimental and theoretical study of electron density and structure factors in CoSb3. Ultramicroscopy. volum 111 (7).
    Vitenskapelig artikkel
  • Teichmann, Katharina; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Pedersen, Ketill Olav; Gulbrandsen-Dahl, Sverre; Kolar, Michal; Holmestad, Randi; Marthinsen, Knut. (2011) HRTEM study of the effect of deformation on the early precipitation behaviour in an AA6060 Al-Mg-Si alloy. Philosophical Magazine. volum 91 (28).
    Vitenskapelig artikkel
  • Torsæter, Malin; LeFebvre, William; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Walmsley, John; Holmestad, Randi. (2011) Study of intergrown L and Q ' precipitates in Al-Mg-Si-Cu alloys. Scripta Materialia. volum 64 (9).
    Vitenskapelig artikkel
  • Vullum, Per Erik; Pitt, Mark P.; Walmsley, John C.; Hauback, Bjørn C.; Holmestad, Randi. (2011) TEM characterization of pure and transition metal enhanced NaAlH4. Journal of Alloys and Compounds. volum 509 (2).
    Vitenskapelig artikkel
  • Weigand, Christian Carl; Bergren, M.R.; Ladam, Cecile; Tveit, Johannes; Holmestad, Randi; Vullum, Per Erik; Walmsley, John; Dahl, Øystein; Furtak, T.E.; Collins, R.T.; Grepstad, Jostein; Weman, Helge. (2011) Formation of ZnO Nanosheets Grown by Catalyst-Assisted Pulsed Laser Deposition. Crystal Growth & Design. volum 11 (12).
    Vitenskapelig artikkel

2010

  • Andersen, S.J.; Marioara, C.D.; Torsæter, Malin; Bjørge, Ruben; Ehlers, Flemming J H; Holmestad, Randi; Reiso, Oddvin; Røyset, Jostein. (2010) Behind Structure and Relation of Precipitates in Al-Mg-Si and Related Alloys. Proceedings of the 12th International Conference on Aluminium Alloys (ICAA12).
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Andersen, Sigmund J; Marioara, CD; Holmestad, Randi. (2010) Precipitates in Al-Mg-Si alloys. Relations to Zintl-phases and polar intermetallics. Proceedings for 5th Japan-China-Norway Cooperative Symphosium on Nanostructure of Advanced Materials and Nanotechnology- JCNCS2010.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Andersen, Sigmund J; Marioara, CD; Vissers, Rene; Torsæter, Malin; Bjørge, Ruben; Ehlers, Flemming; Holmestad, Randi. (2010) The dual nature of precipitates in Al-Mg-Si alloys. Materials Science Forum. volum 638-642.
    Vitenskapelig artikkel
  • Bjørge, Ruben; Marioara, Calin D; Andersen, Sigmund J; Holmestad, Randi. (2010) Germanium network connecting precipitates in an Mg-rich Al-Mg-Ge alloy. Journal of Electron Microscopy. volum 59 (S1).
    Vitenskapelig artikkel
  • Bjørge, Ruben; Marioara, Calin D; Andersen, Sigmund J; Holmestad, Randi. (2010) Precipitation in Two Al-Mg-Ge Alloys. Metallurgical and Materials Transactions A. volum 41A (8).
    Vitenskapelig artikkel
  • Holmestad, Jon; Marioara, CD; Andersen, Sigmund J.; Holmestad, Randi. (2010) The effect of Ag on Hardness and Microstructure during Overageing of Al-Mg-Si-Cu Alloys. Proceedings for 5th Japan-China-Norway Cooperative Symphosium on Nanostructure of Advanced Materials and Nanotechnology- JCNCS2010.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Holmestad, Randi; Marioara, C.D.; Ehlers, Flemming J H; Torsæter, Malin; Bjørge, Ruben; Røyset, Jostein; Andersen, S.J.. (2010) Precipitation in 6xxx Aluminium Alloys. Proceedings of the 12th International Conference on Aluminium Alloys (ICAA12).
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Marioara, CD; Andersen, Sigmund J.; Bjørge, Ruben; Holmestad, Randi. (2010) Si/Ge network connecting precipitates in Al-Mg-Si/Ge-Cu(-Ag) alloys. Proceedings for 5th Japan-China-Norway Cooperative Symphosium on Nanostructure of Advanced Materials and Nanotechnology- JCNCS2010.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Nakamura, Junya; Matsuda, Kenji; Sato, Tatsuo; Marioara, CD; Andersen, Sigmund J.; Holmestad, Randi; Ikeno, Susum. (2010) Effect of Silver addition on crystal structure for beta' phase in Al-Mg-Si alloy. Proceedings for 5th Japan-China-Norway Cooperative Symphosium on Nanostructure of Advanced Materials and Nanotechnology- JCNCS2010.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Torsæter, Malin; Hasting, Håkon Stokka; Lefebvre, Williams; Marioara, Calin Daniel; Walmsley, John; Andersen, S. J.; Holmestad, Randi. (2010) The influence of composition and natural aging on clustering during preaging in Al-Mg-Si alloys. Journal of Applied Physics. volum 108 (7).
    Vitenskapelig artikkel
  • Torsæter, Malin; Lefebvre, Williams; Andersen, S.J.; Marioara, C.D.; Walmsley, JC; Holmestad, Randi. (2010) Clustering Behaviour in Al-Mg-Si Alloys Investigated by APT. Proceedings of the 12th International Conference on Aluminium Alloys.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Torsæter, Malin; Lefebvre, Williams; Marioara, CD; Andersen, Sigmund J.; Walmsley, John; Holmestad, Randi. (2010) The study of clustering in Al-based alloys by APT. Proceedings for 5th Japan-China-Norway Cooperative Symphosium on Nanostructure of Advanced Materials and Nanotechnology- JCNCS2010.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Ehlers, Flemming; Holmestad, Randi. (2010) Direct Approach to Atomistic Ab Initio Studies of Precipitate Growth in Alloys. Materials Research Society Symposium Proceedings. volum 1229E (LL-02-09).
    Vitenskapelig artikkel
  • Holmestad, Jon; Marioara, C.D.; Andersen, Sigmund J.; Holmestad, Randi. (2010) Microstructure of Two Overaged Al-Mg-Si-Cu Alloys. Proceedings of the 12th International Conference on Aluminium Alloys (ICAA12).
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Ramachandran, Amutha; Tucho, Wakshum Mekonnen; Mejdell, Astrid Lervik; Stange, Marit; Venvik, Hilde Johnsen; Walmsley, John C; Holmestad, Randi; Bredesen, Rune; Borg, Anne. (2010) Surface characterization of Pd/Ag23 wt% membranes after different thermal treatments. Applied Surface Science. volum 256 (20).
    Vitenskapelig artikkel
  • Sæterli, Ragnhild; Rørvik, Per Martin Ljønes; You, Chang Chuan; Holmestad, Randi; Tybell, Thomas; Grande, Tor; Van Helvoort, Antonius; Einarsrud, Mari-Ann. (2010) Polarization control in ferroelectric PbTiO3 nanorods. Journal of Applied Physics. volum 108 (12).
    Vitenskapelig artikkel
  • Sæterli, Ragnhild; Selbach, Sverre Magnus; Ravindran, Ponniah; Grande, Tor; Holmestad, Randi. (2010) Electronic structure of multiferroic BiFeO3 and related compounds: Electron energy loss spectroscopy and density functional study. Physical Review B. Condensed Matter and Materials Physics. volum 82 (6).
    Vitenskapelig artikkel
  • Tucho, Wakshum Mekonnen; Mauroy, Henrik; Walmsley, John; Deledda, Stefano; Holmestad, Randi; Hauback, Bjørn. (2010) The effects of ball milling intensity on morphology of multiwall carbon nanotubes. Scripta Materialia. volum 63 (6).
    Vitenskapelig artikkel
  • Zhou, Dayong; Vullum, Per Erik; Sharma, Gaurav; Thomassen, Sedsel Fretheim; Holmestad, Randi; Reenaas, Turid Worren; Fimland, Bjørn-Ove. (2010) Positioning effects on quantum dot solar cells grown by molecular beam epitaxy. Applied Physics Letters. volum 96 (8).
    Vitenskapelig artikkel

2009

  • Hasting, Håkon Stokka; Frøseth, Anders Gudmund; Andersen, Sigmund J; Vissers, Rene; Walmsley, John C; Marioara, Calin D; Danoix, Frederic; Lefebvre, Williams; Holmestad, Randi. (2009) Composition of beta'' precipitates in Al-Mg-Si alloys by atom probe tomography and first principles calculations. Journal of Applied Physics. volum 106 (12).
    Vitenskapelig artikkel
  • Nordmark, Heidi; Nagayoshi, H; Matsumoto, N; Nishimura, S; Terashima, K; Marioara, CD; Walmsley, John C; Holmestad, Randi; Ulyashin, A. (2009) Si substrates texturing and vapor-solid-solid Si nanowhiskers growth using pure hydrogen as source gas. Journal of Applied Physics. volum 105 (4).
    Vitenskapelig artikkel
  • Binetti, S; Libal, J; Acciarri, M; Di Sabatino, Marisa; Nordmark, Heidi; Øvrelid, E. J.; Walmsley, John C; Holmestad, Randi. (2009) Study of defects and impurities in multicrystalline silicon grown from metallurgical silicon feedstock. Materials Science & Engineering: B. Solid-state Materials for Advanced Technology. volum 159-60.
    Vitenskapelig artikkel
  • Mokkelbost, Tommy; Lein, Hilde Lea; Vullum, Per Erik; Holmestad, Randi; Grande, Tor; Einarsrud, Mari-Ann. (2009) Thermal and mechanical properties of LaNbO4-based ceramics. Ceramics International. volum 35 (7).
    Vitenskapelig artikkel
  • Nordmark, Heidi; Holmestad, Randi; Walmsley, JC; Ulyashin, A. (2009) Transmission electron microscopy study of hydrogen defect formation at extended defects in hydrogen plasma treated multicrystalline silicon. Journal of Applied Physics. volum 105 (3).
    Vitenskapelig artikkel
  • Peters, TA; Tucho, Wakshum Mekonnen; Ramachandran, Amutha; Stange, M; Walmsley, JC; Holmestad, Randi; Borg, Anne; Bredesen, R. (2009) Thin Pd-23%Ag/stainless steel composite membranes: Long-term stability, life-time estimation and post-process characterisation. Journal of Membrane Science. volum 326 (2).
    Vitenskapelig artikkel
  • Sæterli, Ragnhild; Flage-Larsen, E.; Prytz, Ø.; Prytz, Øystein; Taftø, J.; Taftø, Johan; Marthinsen, Knut; Holmestad, Randi. (2009) Electron energy loss spectroscopy of the L2,3 edge of phosphorus skutterudites and electronic structure calculations. Physical Review B. Condensed Matter and Materials Physics. volum 80 (7).
    Vitenskapelig artikkel
  • Tucho, Wakshum Mekonnen; Venvik, Hilde Johnsen; Stange, Marit; Walmsley, John C; Holmestad, Randi; Bredesen, Rune. (2009) Effects of thermal activation on hydrogen permeation properties of thin, self-supported Pd/Ag membranes. Separation and Purification Technology. volum 68 (3).
    Vitenskapelig artikkel
  • Tucho, Wakshum Mekonnen; Venvik, Hilde Johnsen; Walmsley, John C; Stange, M; Ramachandran, Amutha; Mathiesen, Ragnvald; Borg, Anne; Bredesen, R; Holmestad, Randi. (2009) Microstructural studies of self-supported (1.5-10 mu m) Pd/23 wt% Ag hydrogen separation membranes subjected to different heat treatments. Journal of Materials Science. volum 44 (16).
    Vitenskapelig artikkel
  • Vullum, Per Erik; Pitt, M; Walmsley, John C; Hauback, Bjørn-Christian; Holmestad, Randi. (2009) Observations of nanoscopic, face centered cubic Ti and TiH (x). Applied Physics A: Materials Science & Processing. volum 94 (4).
    Vitenskapelig artikkel

2008

  • Andersen, Sigmund J; Marioara, Calin D; Vissers, Rene; Holmestad, Randi. (2008) Effect of Defects: Atomic Structure of precipitates in AlMgSi(Cu) Insights into precipitation. Proceedings of the 11th International Conference on Aluminium Alloys.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Marioara, C.D.; Andersen, S.J.; Birkeland, Asgeir; Holmestad, Randi. (2008) Orientation of silicon particles in a binary Al–Si alloy. Journal of Materials Science. volum 43 (14).
    Vitenskapelig artikkel
  • Marioara, Calin D; Andersen, Sigmund J; Stene, Tore; Hasting, Håkon Stokka; Walmsley, John C; Van Helvoort, Antonius; Holmestad, Randi. (2008) Microstructure: The influence of Cu on Hardness and Microstructure in Al-Mg-Si alloys. Proceedings of the 11th International Conference on Aluminium Alloys.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Torsæter, Malin; Vissers, Rene; Marioara, Calin D; Andersen, Sigmund J; Holmestad, Randi. (2008) Simulation and Modelling: Crystal Structure Determination of the Q' and C-type Plate Precipitates in Al-Mg-Si-Cu (6xxx) Alloys. Proceedings of the 11th International Conference on Aluminium Alloys.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Vissers, Rene; Marioara, Calin D; Andersen, Sigmund J; Holmestad, Randi. (2008) Process, Mechanical and Heat Treatment Modelling: Crystal Structure determination of the B' phase in Al-Mg-Si Alloys by combining Quantitative Electron diffraction and ab initio Calculations. Proceedings of the 11th International Conference on Aluminium Alloys.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Eberg, Espen; Monsen, Åsmund Fløystad; Tybell, Thomas; Van Helvoort, Antonius; Holmestad, Randi. (2008) Comparison of TEM specimen preparation of perovskite thin films by tripod polishing and conventional ion milling. Journal of Electron Microscopy. volum 57 (6).
    Vitenskapelig artikkel
  • Nagayoshi, H; Nordmark, Heidi; Holmestad, Randi; Matsumoto, N; Nishimura, S; Tersahima, K; Walmsley, John Charles; Ulyashin, Alexander. (2008) Silicon Whisker Growth Using Hot Filament Reactor with Hydrogen as Source Gas. Japanese Journal of Applied Physics (JJAP). volum 47 (6).
    Vitenskapelig artikkel
  • Nordmark, Heidi; Ulyashin, Alexander; Walmsley, John C; Holmestad, Randi. (2008) A comparative analysis of structural defect formation in Si+ implanted and then plasma hydrogenated and in H+ implanted crystalline silicon. Solid State Phenomena. volum 131-133.
    Vitenskapelig artikkel
  • Nordmark, Heidi; Ulyashin, Alexander; Walmsley, John C; Holt, Arve; Holmestad, Randi. (2008) The temperature evolution of the hydrogen plasma induced structural defects in crystalline silicon. Solid State Phenomena. volum 131-133.
    Vitenskapelig artikkel
  • Pitt, Mark; Vullum, Per Erik; sørby, M.H.; sulic, M.P.; Jensen, CM; Walmsley, John C; Holmestad, Randi; Hauback, BC. (2008) Structural properties of the nanoscopic Al85Ti15 solid solution observed in the hydrogen-cycled NaAlH4 + 0.1TiCl3 system. Acta Materialia. volum 56 (17).
    Vitenskapelig artikkel
  • Prytz, Øystein; Sæterli, Ragnhild; Holmestad, Randi; Taftø, Johan. (2008) Investigations of bonding in skutterudites by electron energy loss spectroscopy. Materials Research Society Symposium Proceedings Vol. 1044: MateralsThermoelectric Power Generation.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Rørvik, Per Martin; Almli, Åsmund; Van Helvoort, Antonius; Holmestad, Randi; Tybell, Thomas; Grande, Tor; Einarsrud, Mari-Ann. (2008) PbTiO3 nanorod arrays grown by self-assembly of nanocrystals. Nanotechnology. volum 19.
    Vitenskapelig artikkel
  • Rørvik, Per Martin; Lyngdal, Tone; Sæterli, Ragnhild; Van Helvoort, Antonius; Holmestad, Randi; Grande, Tor; Einarsrud, Mari-Ann. (2008) Influence of volatile chlorides on the molten salt synthesis of ternary oxide nanorods and nanoparticles. Inorganic Chemistry. volum 47.
    Vitenskapelig artikkel
  • Sæterli, Ragnhild; Van Helvoort, Antonius; Wang, Guozhong; Rørvik, Per Martin; Tanem, Bjørn Steiner; Grande, Tor; Einarsrud, Mari-Ann; Holmestad, Randi. (2008) Detailed TEM characterisation of PbTiO3 nanorods. Journal of Physics: Conference Series (JPCS). volum 126.
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  • Tucho, Wakshum Mekonnen; Arstad, Bjørnar; Klette, Hallgeir; Walmsley, John C; Bredesen, Rune; Venvik, Hilde Johnsen; Holmestad, Randi. (2008) Microstructural characterization of self-supported 1.6µm Pd/Ag membranes. Journal of Membrane Science. volum 310.
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  • Vullum, Per Erik; Lein, Hilde Lea; Einarsrud, Mari-Ann; Grande, Tor; Holmestad, Randi. (2008) TEM observations of rhombohedral and monoclinic domains in LaCoO3-based ceramics. Philosophical Magazine. volum 88 (8).
    Vitenskapelig artikkel
  • Vullum, Per Erik; Pitt, Mark; Walmsley, John C; Hauback, Bjørn; Holmestad, Randi. (2008) Transmission electron microscopy characterization of NaAlH4. Journal of Physics: Conference Series (JPCS). volum 126.
    Vitenskapelig artikkel

2007

  • Hasting, Håkon Stokka; Lefebvre, Williams; Marioara, Calin D; Walmsley, John C; Andersen, Sigmund; Holmestad, Randi; Danoix, Frederic. (2007) Comparative study of the beta ''-phase in a 6xxx Al alloy by 3DAP and HRTEM. Surface and Interface Analysis. volum 39.
    Vitenskapelig artikkel
  • Marioara, CD; Andersen, Sigmund; Stene, Tore; Hasting, Håkon Stokka; Walmsley, John C; Van Helvoort, Antonius; Holmestad, Randi. (2007) The effect of Cu on precipitation in Al-Mg-Si alloys. Philosophical Magazine. volum 87.
    Vitenskapelig artikkel
  • Sandberg, Nils; Slabanja, M; Holmestad, Randi. (2007) Ab initio simulations of clustering and precipitation in Al-Mg-Si alloys. Computational Materials Science. volum 40.
    Vitenskapelig artikkel
  • Vullum, Per Erik; Holmestad, Randi; Lein, Hilde Lea; Mastin, Johann Roland M; Einarsrud, Mari-Ann; Grande, Tor. (2007) Monoclinic ferroelastic domains in LaCoO3-based perovskites. Advanced Materials. volum 19 (24).
    Vitenskapelig artikkel
  • Vullum, Per Erik; Van Helvoort, Antonius; Holmestad, Randi; Mastin, Johann Roland M; Andersen, Øystein Skottun; Einarsrud, Mari-Ann; Grande, Tor. (2007) Grain boundary analysis and secondary phases in LaCoO3-based perovskites. Journal of Materials Science. volum 42.
    Vitenskapelig artikkel
  • Wang, Guozhong; Sæterli, Ragnhild; Rørvik, Per Martin; Van Helvoort, Antonius; Holmestad, Randi; Grande, Tor; Einarsrud, Mari-Ann. (2007) Hierarchical nanostructures of PbTiO3 through mesocrystal formation. Journal of Nanoscience and Nanotechnology. volum 7.
    Vitenskapelig artikkel
  • Wang, Guozhong; Sæterli, Ragnhild; Rørvik, Per Martin; Van Helvoort, Antonius; Holmestad, Randi; Grande, Tor; Einarsrud, Mari-Ann. (2007) Self-assembled growth of PbTiO3 nanoparticles into microspheres and bur-like structures. Chemistry of Materials. volum 19.
    Vitenskapelig artikkel

2006

  • Hasting, Håkon Stokka; Walmsley, John C; Marioara, Calin D; Van Helvoort, Antonius; Holmestad, Randi; Danoix, Frederic; Lefebvre, Williams. (2006) Characterisation of early precipitation stages in 6xxx series aluminium alloys. Institute of Physics Conference Series. volum 26.
    Vitenskapelig artikkel
  • Hasting, Håkon Stokka; Walmsley, John; Van Helvoort, Antonius; Marioara, Calin D; Andersen, Sigmund; Holmestad, Randi. (2006) Z-contrast imaging of the arrangement of Cu-precipitates in 6xxx-series aluminium alloys. Philosophical Magazine Letters. volum 86 (9).
    Vitenskapelig artikkel
  • Marioara, CD; Nordmark, Heidi; Andersen, Sigmund; Holmestad, Randi. (2006) Post-beta '' phases and their influence on microstructure and hardness in 6xxx Al-Mg-Si alloys. Journal of Materials Science. volum 41.
    Vitenskapelig artikkel
  • Van Helvoort, Antonius; Tanem, Bjørn Steiner; Holmestad, Randi. (2006) Annular bright and dark field imaging of soft materials. Institute of Physics Conference Series. volum 26.
    Vitenskapelig artikkel
  • Arstad, Bjørnar; Venvik, Hilde Johnsen; Klette, Hallgeir; Walmsley, John; Tucho, Wakshum Mekonnen; Holmestad, Randi; Holmen, Anders; Bredesen, Rune. (2006) Studies of self-supported 1,6 μm Pd/23 wt.% Ag membranes during and after hydrogen production in a catalytic membrane reactor. Catalysis Today. volum 118.
    Vitenskapelig artikkel
  • Lein, Hilde Lea; Andersen, Øystein Skottun; Vullum, Per Erik; Lara-Curzio, E; Holmestad, Randi; Einarsrud, Mari-Ann; Grande, Tor. (2006) Mechanical properties of mixed conducting La0.5Sr0.5Fe1-xCoxO3-delta (0 &lt;= x &lt;= 1) materials. Journal of Solid State Electrochemistry. volum 10 (8).
    Vitenskapelig artikkel
  • Nordmark, Heidi; Ulyashin, Alexander; Ulyashin, Alexander; Walmsley, John C; Totdal, Bard; Tøtdal, Bård; Holmestad, Randi. (2006) Evolution of hydrogen induced defects during annealing of plasma treated Czochralski silicon. Nuclear Instruments and Methods in Physics Reseach B. volum 253.
    Vitenskapelig artikkel
  • Sandberg, N; Holmestad, Randi. (2006) First-principles calculations of impurity diffusion activation energies in Al. Physical Review B. Condensed Matter and Materials Physics. volum 73.
    Vitenskapelig artikkel
  • Venvik, Hilde Johnsen; Mejdell, Astrid Lervik; Aardal, Brynjar Fausk; Klette, Hallgeir; Arstad, Bjørnar; Bredesen, Rune; Tucho, Wakshum Mekonnen; Walmsley, John; Holmestad, Randi; Borg, Anne; Holmen, Anders. (2006) Pd-based thin films in catalytic membrane reactor applications. Energy and Environmental Catalysis. Catalysis in Nordic Countries. Extended Abstracts.
    Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
  • Vullum, Per Erik; Mastin, Johann Roland M; Wright, J; Einarsrud, Mari-Ann; Holmestad, Randi; Grande, Tor. (2006) In situ synchrotron X-ray diffraction of ferroelastic La0.8Ca0.2CoO3 ceramics during uniaxial compression. Acta Materialia. volum 54.
    Vitenskapelig artikkel

2005

  • Marioara, Calin D; Andersen, S.J.; Zandbergen, HW; Holmestad, Randi. (2005) The influence of alloy composition on precipitates of the Al-Mg-Si system. Metallurgical and Materials Transactions A. volum 36A.
    Vitenskapelig artikkel
  • Wærnhus, Ivar; Vullum, Per Erik; Holmestad, Randi; Grande, Tor; Wiik, Kjell. (2005) Electronic properties of polycrystalline LaFeO3. Part I: Experimental results and the qualitative role of Schottky defects. Solid State Ionics. volum 176 (37-38).
    Vitenskapelig artikkel
  • Andrei, Carmen; Walmsley, John Charles; Blanchard, D; Brinks, Hendrik; Holmestad, Randi; Hauback, Bjørn C.. (2005) Electron microscopy studies of lithium aluminium hydrides. Journal of Alloys and Compounds. volum 395.
    Vitenskapelig artikkel
  • Andrei, Carmen; Walmsley, John; Brinks, Hendrik; Holmestad, Randi; Blanchard, D; Hauback, Bjørn C.; Botton, GA. (2005) Analytical electron microscopy studies of lithium aluminum hydrides with Ti- and V-based additives. Journal of Physical Chemistry B. volum 109.
    Vitenskapelig artikkel
  • Andrei, Carmen; Walmsley, John; Brinks, HW; Holmestad, Randi; Srinivasan, SS; Jensen, CM; Hauback, BC. (2005) Electron-microscopy studies of NaAlH4 with TiF3 additive: hydrogen-cycling effects. Applied Physics A: Materials Science & Processing. volum 80.
    Vitenskapelig artikkel
  • Faaland, Sonia; Grande, Tor; Einarsrud, Mari-Ann; Vullum, Per Erik; Holmestad, Randi. (2005) Stress-strain behavior during compression of polycrystalline La1-xCaCoO3 ceramics. Journal of The American Ceramic Society. volum 88.
    Vitenskapelig artikkel
  • Friis, Jesper; Jiang, Bin; Marthinsen, Knut; Holmestad, Randi. (2005) A study of charge density in copper. Acta Crystallographica Section A: Foundations of Crystallography. volum 61.
    Vitenskapelig artikkel
  • Van Helvoort, Antonius; Dahl, Øystein; Soleim, Bjørn Gunnar; Holmestad, Randi; Tybell, Thomas. (2005) Imaging of out-of-plane interfacial strain in epitaxial PbTiO3/SrTiO3 thin films. Applied Physics Letters. volum 86.
    Vitenskapelig artikkel

2004

  • Friis, Jesper; Jiang, Bin; Marthinsen, Knut; Holmestad, Randi. (2004) QCBED measurements in strontium titanate. Proceedings / European Microscopy Congress. volum 1.
    Vitenskapelig artikkel
  • Friis, Jesper; Marthinsen, Knut; Holmestad, Randi. (2004) Retrieval of anisotropic displacement parameters in Mg from convergent beam electron diffraction experiments. Institute of Physics Conference Series.
    Vitenskapelig artikkel
  • Van Helvoort, Antonius; Knowles, KM; Holmestad, Randi. (2004) Compositional characterisation of electrostatic bonds. Institute of Physics Conference Series.
    Vitenskapelig artikkel
  • Friis, Jesper; Jiang, Bin; Spence, John C. H.; Marthinsen, Knut; Holmestad, Randi. (2004) Extinction-free electron diffraction refinement of bonding in SrTiO3. Acta Crystallographica Section A: Foundations of Crystallography. volum 60.
    Vitenskapelig artikkel
  • Jiang, B; Friis, Jesper; Holmestad, Randi; Zuo, JM; O'keeffe, Michael; Spence, JCH. (2004) Electron density and implication for bonding in Cu. Physical Review B. Condensed Matter and Materials Physics. volum 69.
    Vitenskapelig artikkel
  • Van Helvoort, Antonius; Knowles, KM; Holmestad, Randi; Fernie, JA. (2004) Anodic oxidation during electrostatic bonding. Philosophical Magazine. volum 84 (6).
    Vitenskapelig artikkel

2003

  • Friis, Jesper; Jiang, Bin; Spence, John C. H.; Holmestad, Randi. (2003) Quantitative Convergent Beam Electron Diffraction Measurements of Low-Order Structure Factors in Copper. Microscopy and Microanalysis. volum 9.
    Vitenskapelig artikkel
  • Friis, Jesper; Jiang, Bin; Spence, John; Holmestad, Randi. (2003) Quantitative Convergent Beam Electron Diffraction Measurements of Low-Order Structure Factors in Copper. Microscopy and Microanalysis. volum 9.
    Vitenskapelig artikkel
  • Friis, Jesper; Madsen, Georg; Larsen, Finn krebs; Jiang, Bin; Marthinsen, Knut; Holmestad, Randi. (2003) Magnesium: Comparison of density functional theory calculations with electron and x-ray diffraction experiments. Journal of Chemical Physics. volum 119 (21).
    Vitenskapelig artikkel
  • Frøseth, Anders Gudmund; Holmestad, Randi; Derlet, Peter; Marthinsen, Knut. (2003) Improved tight binding parametrization for the simulation of stacking faults in Aluminium. Physical Review B. Condensed Matter and Materials Physics. volum 68 (1).
    Vitenskapelig artikkel
  • Andrei, Carmen; Yu, Yingda; Walmsley, John; Brinks, Hendrik; Hauback, Bjørn; Holmestad, Randi. (2003) Electron microscopy studies of TbNiAl compound processed by the HDDR route. Journal of Alloys and Compounds. volum 356-357.
    Vitenskapelig artikkel

1999

  • Derlet, Peter; Høier, Rangvald; Holmestad, Randi; Marthinsen, Knut; Ryum, Nils. (1999) The embedded-atom model applied to vacancy formation in bulk aluminium and lithium. Journal of Physics: Condensed Matter. volum 11.
    Vitenskapelig artikkel
  • Holmestad, Randi; Birkeland, Christophe; Marthinsen, Knut; Høier, Rangvald; Zuo, Jian Min. (1999) Use of quantitative convergent-beam electron diffraction in materials science. Microscopy research and technique (Print). volum 46 (2).
    Vitenskapelig artikkel
  • Høier, Rangvald; Birkeland, Christophe; Holmestad, Randi; Marthinsen, Knut. (1999) Three-phase structure invariants and structure factors determined with the quantitative convergent-beam electron diffraction method. Acta Crystallographica Section A: Foundations of Crystallography. volum A55.
    Vitenskapelig artikkel

1998

  • Birkeland, Christophe; Holmestad, Randi. (1998) Charge-density determination in TiAl-Cr and TiAl-V using quantitative convergent beam electron diffraction. Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties. volum 77 (5).
    Vitenskapelig artikkel
  • Birkeland, Christophe; Holmestad, Randi; Marthinsen, Knut; Høier, Rangvald. (1998) Use of supercomputers in quantitative electron diffraction. Journal of Scientific Computing. volum 13 (1).
    Vitenskapelig artikkel
  • Lie, Knut; Holmestad, Randi; Marthinsen, Knut; Høier, Rangvald. (1998) Experimental and theoretical investigations of EELS near-edge fine structure in TiAl with and without ternary addition of V, Cr, or Mn. Physical Review B. Condensed Matter and Materials Physics. volum 57.
    Vitenskapelig artikkel

1997

  • Birkeland, Christophe R.; Holmestad, Randi; Marthinsen, Knut; Høier, Rangvald. (1997) Efficient beam-selection criteria in quantitative convergent beam electron diffraction. Ultramicroscopy. volum 66.
    Vitenskapelig artikkel

Tidsskriftspublikasjoner

  • Bergh, Tina; Ånes, Håkon Wiik; Aune, Ragnhild; Wenner, Sigurd; Holmestad, Randi; Ren, Xiaobo; Vullum, Per Erik. (2023) Intermetallic Phase Layers in Cold Metal Transfer Aluminium-Steel Welds with an AlSiMn Filler Alloy. Materials transactions. volum 64 (2).
    Vitenskapelig artikkel
  • Frafjord, Jonas; Friis, Jesper; Holmestad, Randi; Ringdalen, Inga Gudem. (2023) On the Atomic Structure of the β′′ Precipitate by Density Functional Theory. Computational Materials Science. volum 217.
    Vitenskapelig artikkel
  • Bakardjieva, Snejana; Mares, Jakub; Koci, Eva; Tolasz, Jakub; Fajgar, Radek; Ryukhtin, Vasyl; Klementova, Mariana; Michna, Štefan; Bibova, Hanna; Holmestad, Randi; Titorenkova, Rositsa; Čaplovičová, Mária. (2022) Effect of Multiply Twinned Ag(0) Nanoparticles on Photocatalytic Properties of TiO2 Nanosheets and TiO2 Nanostructured Thin Films. Nanomaterials. volum 12 (5).
    Vitenskapelig artikkel
  • Bergh, Tina; Arbo, Siri Marthe; Hagen, Anette Brocks; Blindheim, Jørgen; Friis, Jesper; Khalid, Muhammad Zeeshan; Ringdalen, Inga Gudem; Holmestad, Randi; Westermann, Ida; Vullum, Per Erik. (2022) On intermetallic phases formed during interdiffusion between aluminium alloys and stainless steel. Intermetallics (Barking). volum 142.
    Vitenskapelig artikkel
  • Ciancio, Regina; Dunin-Borkowski, Rafal E.; Snoeck, Etienne; Kociak, Matheiu; Holmestad, Randi; Verbeeck, Johan; Kirkland, Angus I.; Kothleitner, Gerald; Arbiol, Jordi. (2022) e-DREAM: the European Distributed Research Infrastructure for Advanced Electron Microscopy. Microscopy and Microanalysis. volum 28.
    Vitenskapelig artikkel
  • Dehghan-Niri, Roya; Tsakoumis, Nikolaos; Voronov, Alexey; Holmen, Anders; Holmestad, Randi; Vullum, Per Erik; Borg, Øyvind; Rytter, Erling; Rønning, Magnus; Walmsley, John. (2022) NanostructuralAnalysisof Co-Re/γ-Al2O3 Fischer-Tropsch Catalyst by TEM and XRD. ChemCatChem. volum 14 (11).
    Vitenskapelig artikkel
  • Gazizov, Marat; Belyakov, Andrey; Holmestad, Randi; Gazizova, M.Yu.; Krasnikov, V.S.; Bezborodova, P.A; Kaibyshev, Rustam. (2022) The deformation behavior of the {111}Al plates in an Al-Cu-Mg-Ag alloy. Acta Materialia. volum 243.
    Vitenskapelig artikkel
  • Gazizov, Marat; Boev, A.O.; Marioara, Calin Daniel; Holmestad, Randi; Gazizova, M.Yu.; Kaibyshev, Rustam. (2022) Edge interfaces of the Ω plates in a peak-aged Al-Cu-Mg-Ag alloy. Materials Characterization. volum 185.
    Vitenskapelig artikkel
  • Hagen, Anette Brocks; Wenner, Sigurd; Bjørge, Ruben; Wan, Di; Marioara, Calin Daniel; Holmestad, Randi; Vatne, Inga Ringdalen. (2022) Local mechanical properties and precipitation inhomogeneity in large-grained Al-Mg-Si alloy. Journal of Materials Science and Engineering: A.
    Vitenskapelig artikkel
  • Hell, Christoph Martin; Søreide, Hanne-Sofie Marie Scisly; Bjørge, Ruben; Marioara, Calin Daniel; Li, Yanjun; Holmestad, Randi. (2022) Influence of natural aging and ramping before artificial aging on the microstructure of two different 6xxx alloys. Journal of Materials Research and Technology (JMR&T). volum 21.
    Vitenskapelig artikkel
  • Shah, Sohail; Thronsen, Elisabeth; Hatzoglou, Constantinos; Wenner, Sigurd; Marioara, Calin Daniel; Holmestad, Randi; Holmedal, Bjørn. (2022) Effect of cyclic ageing on the early-stage clustering in Al–Zn–Mg(-Cu) alloys. Materials Science & Engineering: A. volum 846.
    Vitenskapelig artikkel
  • Thronsen, Elisabeth; Bergh, Tina; Christiansen, Emil; Thorsen, Thor Inge; Van Helvoort, Antonius; Holmestad, Randi. (2022) Scanning Precession Electron Diffraction and What We Get Out of Such Data in Studies of Aluminium Alloys. Microscopy and Microanalysis. volum 28.
    Vitenskapelig artikkel
  • Thronsen, Elisabeth; Mørkeseth, Hanne; Marioara, Calin Daniel; Minakuchi, Kazuhiro; Katsumi, Tetsuya; Marthinsen, Knut; Matsuda, Kenji; Holmestad, Randi. (2022) The Effect of Small Additions of Fe and Heavy Deformation on the Precipitation in an Al–1.1Mg–0.5Cu–0.3Si At. Pct Alloy. Metallurgical and Materials Transactions A. volum 53 (9).
    Vitenskapelig artikkel
  • Tvedt, Haakon; Marioara, Calin Daniel; Thronsen, Elisabeth; Hell, Christoph Martin; Andersen, Sigmund Jarle; Holmestad, Randi. (2022) AutomAl 6000: Semi-automatic structural labelling of HAADF-STEM images of precipitates in Al–Mg–Si(–Cu) alloys. Ultramicroscopy. volum 236.
    Vitenskapelig artikkel
  • Celotto, Ambra; Grong, Øystein; Holmestad, Randi; Sørhaug, Jørgen A; Torgersen, Jan; Vullum, Per Erik; Berto, Filippo. (2021) Preliminary in-situ study of FIB-assisted method for aluminium solid-state welding at the microscale. Procedia Structural Integrity. volum 33.
    Vitenskapelig artikkel
  • Chen, Xuanliang; Daehan, Kim; O, Minho; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Lervik, Adrian; Holmestad, Randi; Kobayashi, Equo. (2021) Effect of pre-deformation on age-hardening behaviors in an Al-Mg-Cu alloy. Materials Science & Engineering: A. volum 820.
    Vitenskapelig artikkel
  • Chen, Xuanliang; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Friis, Jesper; Lervik, Adrian; Holmestad, Randi; Kobayashi, Equo. (2021) Data on atomic structures of precipitates in an Al-Mg-Cu alloy studied by high resolution transmission electron microscopy and first-principles calculations. Data in Brief. volum 34 (106748).
    Vitenskapelig artikkel
  • Chen, Xuanliang; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Friis, Jesper; Lervik, Adrian; Holmestad, Randi; Kobayashi, Equo. (2021) Precipitation processes and structural evolutions of various GPB zones and two types of S phases in a cold-rolled Al-Mg-Cu alloy. Materials & design. volum 199.
    Vitenskapelig artikkel
  • Chen, Xuanliang; Mørtsell, Eva Anne; Sunde, Jonas Kristoffer; Minho, O.; Marioara, Calin Daniel; Holmestad, Randi; Kobayashi, Equo. (2021) Enhanced mechanical properties in 6082 aluminum alloy processed by cyclic deformation. Metals. volum 11 (11).
    Vitenskapelig artikkel
  • Frafjord, Jonas; Ringdalen, Inga Gudem; Hopperstad, Odd Sture; Holmestad, Randi; Friis, Jesper. (2021) Corrigendum to “First principles calculations of pressure dependent yielding in solute strengthened aluminium alloys” [Comput. Mater. Sci. 184 (2020) 109902] (Computational Materials Science (2020) 184, (S0927025620303931), (10.1016/j.commatsci.2020.109902)). Computational Materials Science. volum 188.
    Errata
  • Gazizov, M R; Holmestad, Randi; Marioara, Calin Daniel; Kaibyshev, R O. (2021) Quantitative analysis of {100}Al plate/lath- and <100>Al rod-shaped precipitates in an aged Al-Cu-Mg-Si alloy using TEM. IOP Conference Series: Materials Science and Engineering. volum 1014 (012013).
    Vitenskapelig artikkel
  • Gazizov, M.R.; Boev, A.O.; Marioara, Calin Daniel; Holmestad, Randi; Aksyonov, D.A.; Gazizova, M.Yu.; Kaibyshev, R.O.. (2021) Precipitate/matrix incompatibilities related to the {111}Al Ω plates in an Al-Cu-Mg-Ag alloy. Materials Characterization. volum 182.
    Vitenskapelig artikkel
  • Kim, DaeHan; Kim, JaeHwang; Wenner, Sigurd; Thronsen, Elisabeth; Marioara, Calin Daniel; Holmestad, Randi; Kobayashi, Equo. (2021) Precipitation behavior of Al-Si-Cu-Mg(-Fe) alloys by a deformation-semisolid extrusion process. Materials Characterization. volum 173.
    Vitenskapelig artikkel
  • Lu, Feng; Sunde, Jonas Kristoffer; Marioara, Calin Daniel; Holmestad, Randi; Holmedal, Bjørn. (2021) An improved modelling framework for strength and work hardening of precipitate strengthened Al–Mg–Si alloys. Materials Science & Engineering: A. volum 832.
    Vitenskapelig artikkel
  • Ou, Yizi; Jiang, Yong; Wang, Yiren; Liu, Zhengqing; Lervik, Adrian; Holmestad, Randi. (2021) Vacancy and solute co-segregated η1 interface in over-aged Al-Zn-Mg alloys. Acta Materialia. volum 218.
    Vitenskapelig artikkel
  • Sandnes, Lise; Bergh, Tina; Grong, Øystein; Holmestad, Randi; Vullum, Per Erik; Berto, Filippo. (2021) Interface Microstructure and Tensile Properties of a Third Generation Aluminium-Steel Butt Weld Produced Using the Hybrid Metal Extrusion & Bonding (HYB) Process. Materials Science & Engineering: A. volum 809.
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Lu, Feng; Marioara, Calin Daniel; Holmedal, Bjørn; Holmestad, Randi. (2021) Linking mechanical properties to precipitate microstructure in three Al-Mg-Si(-Cu) alloys. Materials Science & Engineering: A. volum 807.
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Marioara, Calin Daniel; Wenner, Sigurd; Holmestad, Randi. (2021) On the microstructural origins of improvements in conductivity by heavy deformation and ageing of Al-Mg-Si alloy 6101. Materials Characterization. volum 176.
    Vitenskapelig artikkel
  • Thronsen, Elisabeth; Frafjord, Jonas; Friis, Jesper; Marioara, Calin Daniel; Wenner, Sigurd; Andersen, Sigmund Jarle; Holmestad, Randi. (2021) Studying GPI zones in Al-Zn-Mg alloys by 4D-STEM. Materials Characterization. volum 185.
    Vitenskapelig artikkel
  • Vatanparast, Maryam; Shao, Yu-Tsun; Rajpalke, Mohana; Fimland, Bjørn-Ove; Reenaas, Turid Dory; Holmestad, Randi; Vullum, Per Erik; Zuo, Jian Min. (2021) Detecting minute amounts of nitrogen in GaNAs thin films using STEM and CBED. Ultramicroscopy.
    Vitenskapelig artikkel
  • Bergh, Tina; Sandnes, Lise; Johnstone, Duncan Neil; Grong, Øystein; Berto, Filippo; Holmestad, Randi; Midgley, Paul Anthony; Vullum, Per Erik. (2020) Microstructural and mechanical characterisation of a second generation hybrid metal extrusion & bonding aluminium-steel butt joint. Materials Characterization.
    Vitenskapelig artikkel
  • Christiansen, Emil; Marioara, Calin Daniel; Ringdalen, Inga Gudem; Bjørge, Ruben; Holmedal, Bjørn; Hopperstad, Odd Sture; Holmestad, Randi. (2020) Detailed investigation of the shearing mechanism of β" precipitates in Al-Mg-Si alloys. MATEC Web of Conferences. volum 326.
    Vitenskapelig artikkel
  • Christiansen, Emil; Ringdalen, Inga Gudem; Bjørge, Ruben; Marioara, Calin Daniel; Holmestad, Randi. (2020) Multislice image simulations of sheared needle‐like precipitates in an Al‐Mg‐Si alloy. Journal of Microscopy. volum 279 (3).
    Vitenskapelig artikkel
  • Frafjord, Jonas; Dumoulin, Stephane; Wenner, Sigurd; Ringdalen, Inga Gudem; Holmestad, Randi; Friis, Jesper. (2020) Fully resolved strain field of the β’’ precipitate calculated by density functional theory. Computational Materials Science. volum 187.
    Vitenskapelig artikkel
  • Frafjord, Jonas; Ringdalen, Inga Gudem; Hopperstad, Odd Sture; Holmestad, Randi; Friis, Jesper. (2020) First principle calculations of pressure dependent yielding in solute strengthened aluminium alloys. Computational Materials Science. volum 184.
    Vitenskapelig artikkel
  • Gazizov, Marat; Boev, A.O.; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi; Kaibyshev, Rustam; Aksyonov, D.A.; Krasnikov, V.S.. (2020) The unique hybrid precipitate in a peak-aged Al-Cu-Mg-Ag alloy. Scripta Materialia. volum 194.
    Vitenskapelig artikkel
  • Gazizov, Marat; Marioara, Calin Daniel; Friis, Jesper; Wenner, Sigurd; Holmestad, Randi; Kaibyshev, Rustam. (2020) Unique hybrid precipitate structures forming in an Al–Cu–Mg–Si alloy. Journal of Alloys and Compounds. volum 826.
    Vitenskapelig artikkel
  • Lervik, Adrian; Danbolt, Turid; Furu, Trond; Holmestad, Randi; Lunder, Otto. (2020) Comparing intergranular corrosion in Al‐Mg‐Si‐Cu alloys with and without α‐Al(Fe,Mn,Cu)Si particles. Materials and corrosion - Werkstoffe und Korrosion. volum 72.
    Vitenskapelig artikkel
  • Lervik, Adrian; Thronsen, Elisabeth; Friis, Jesper; Marioara, Calin Daniel; Wenner, Sigurd; Bendo, Artenis; Matsuda, Kenji; Holmestad, Randi; Andersen, Sigmund Jarle. (2020) Atomic structure of solute clusters in Al-Zn-Mg alloys. Acta Materialia. volum 205.
    Vitenskapelig artikkel
  • Lervik, Adrian; Walmsley, John; Lodgaard, Lars; Marioara, Calin Daniel; Johnsen, Roy; Lunder, Otto; Holmestad, Randi. (2020) Stress Corrosion Cracking in an Extruded Cu-Free Al-Zn-Mg Alloy. Metals. volum 10 (9).
    Vitenskapelig artikkel
  • Lervik, Adrian; Wenner, Sigurd; Lunder, Otto; Marioara, Calin Daniel; Holmestad, Randi. (2020) Grain boundary structures and their correlation with intergranular corrosion in an extruded Al-Mg-Si-Cu alloy. Materials Characterization. volum 170.
    Vitenskapelig artikkel
  • Sunde, Jonas Kristoffer; Marioara, Calin Daniel; Holmestad, Randi. (2020) The effect of low Cu additions on precipitate crystal structures in overaged Al-Mg-Si(-Cu) alloys. Materials Characterization. volum 160.
    Vitenskapelig artikkel
  • Wenner, Sigurd; Lervik, Adrian; Thronsen, Elisabeth; Marioara, Calin Daniel; Kubowicz, Stephan; Holmestad, Randi. (2020) Copper enrichment on aluminium surfaces after electropolishing and its effect on electron imaging and diffraction. Materials Characterization. volum 172.
    Vitenskapelig artikkel
  • Bendo, Artenis; Maeda, Tomoyoshi; Matsuda, Kenji; Lervik, Adrian; Holmestad, Randi; Marioara, Calin Daniel; Nishimura, Katsuhiko; Nunomura, Norio; Toda, Hiroyuki; Yamaguchi, Masatake; Ikeda, Ken-ichi; Homma, Tomoyuki. (2019) Characterisation of structural similarities of precipitates in Mg–Zn and Al–Zn–Mg alloys systems. Philosophical Magazine. volum 99 (21).
    Vitenskapelig artikkel
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  • Saito, Takeshi; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Lefebvre, Williams; Holmestad, Randi. (2014) Aberration-corrected HAADF-STEM investigations of precipitate structures in Al-Mg-Si alloys with low Cu additions. Philosophical Magazine. volum 94 (5).
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  • Saito, Takeshi; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Lefebvre, Williams; Holmestad, Randi. (2014) Structural investigation of precipitates with Cu and Zn atomic columns in Al-Mg-Si alloys by aberration-corrected HAADF-STEM. Journal of Physics: Conference Series (JPCS). volum 522 (1).
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  • Saito, Takeshi; Marioara, Calin Daniel; Røyset, Jostein; Holmestad, Randi. (2014) Effect of low Cu addition and thermo-mechanical history on precipitation in Al-Mg-Si alloys. Materials Science Forum. volum 794-796.
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  • Saito, Takeshi; Marioara, Calin Daniel; Røyset, Jostein; Holmestad, Randi. (2014) Influence of low Cu addition on quench sensitivity in Al-Mg-Si alloys. Advanced Materials Research. volum 922.
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  • Saito, Takeshi; Marioara, Calin Daniel; Røyset, Jostein; Marthinsen, Knut; Holmestad, Randi. (2014) The effects of quench rate and pre-deformation on precipitation hardening in Al–Mg–Si alloys with different Cu amounts. Materials Science & Engineering: A. volum 609.
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  • Saito, Takeshi; Wenner, Sigurd; Osmundsen, Elisa; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Røyset, Jostein; Lefebvre, Williams; Holmestad, Randi. (2014) The Effect of Zn on precipitation in Al-Mg-Si alloys. Philosophical Magazine. volum 94 (21).
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  • Kim, JaeHwang; Marioara, Calin Daniel; Holmestad, Randi; Kobayashi, Equo; Sato, Tatsuo. (2013) Effects of Cu and Ag additions on age-hardening behavior during multi-step aging in Al-Mg-Si alloys. Materials Science & Engineering: A. volum 560.
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  • Muggerud, Astrid Marie F; Mørtsell, Eva Anne; Li, Yanjun; Holmestad, Randi. (2013) Dispersoid strengthening in AA3xxx alloys with varying Mn and Si content during annealing at low temperatures,. Materials Science & Engineering: A. volum 567.
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  • Saito, Takeshi; Muraishi, Shinji; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Jostein, Røyset; Holmestad, Randi. (2013) The Effects of Low Cu Additions and Predeformation on the Precipitation in a 6060 Al-Mg-Si Alloy. Metallurgical and Materials Transactions A. volum 44A (9).
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  • Holmestad, Randi; Bjørge, Ruben; Ehlers, Flemming J H; Torsæter, Malin; Marioara, Calin Daniel; Andersen, Sigmund Jarle. (2012) Characterization and structure of precipitates in 6xxx Aluminium Alloys. Journal of Physics: Conference Series (JPCS). volum 371.
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  • Weigand, Christian Carl; Tveit, Johannes; Ladam, Cecile; Holmestad, Randi; Grepstad, Jostein; Weman, Helge. (2012) Epitaxial relationships of ZnO nanostructures grown by Au-assisted pulsed laser deposition on c- and a-plane sapphire. Journal of Crystal Growth. volum 355 (1).
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  • Wenner, Sigurd; Holmestad, Randi; Matsuda, Kenji; Nishimura, K.; Matsuzaki, T; Tomono, D; Pratt, FL; Marioara, Calin Daniel. (2012) Probing defects in Al-Mg-Si alloys using muon spin relaxation. Physical Review B. Condensed Matter and Materials Physics. volum 86 (10).
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  • Wenner, Sigurd; Marioara, Calin Daniel; Andersen, Sigmund Jarle; Holmestad, Randi. (2012) Effect of room temperature storage time on precipitation in Al-Mg-Si(-Cu) alloys with different Mg/Si ratios. International Journal of Materials Research - Zeitschrift für Metallkunde. volum 103 (8).
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  • Nagayoshi, H; Nordmark, Heidi; Nishimura, S; Terashima, K; Marioara, Calin Daniel; Walmsley, John; Holmestad, Randi; Ulyashin, Alexander. (2011) Vapor-solid-solid Si nano-whiskers growth using pure hydrogen as the source gas. Thin Solid Films. volum 519 (14).
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  • Bjørge, Ruben; Marioara, Calin D; Andersen, Sigmund J; Holmestad, Randi. (2010) Precipitation in Two Al-Mg-Ge Alloys. Metallurgical and Materials Transactions A. volum 41A (8).
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  • Pitt, Mark; Vullum, Per Erik; sørby, M.H.; sulic, M.P.; Jensen, CM; Walmsley, John C; Holmestad, Randi; Hauback, BC. (2008) Structural properties of the nanoscopic Al85Ti15 solid solution observed in the hydrogen-cycled NaAlH4 + 0.1TiCl3 system. Acta Materialia. volum 56 (17).
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