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Kai Erik Ekstrøm

Kai Erik Ekstrøm

Førsteamanuensis
Institutt for materialteknologi

kai.e.ekstrom@ntnu.no
73597094 Berg, E-133, Gløshaugen, Alfred Getz vei 2
Master's thesis Doctoral thesis
Om Publikasjoner Formidling

Om

Background:

  • MSc in Chemical Engineering and Biotechnology; specialized in Materials Chemistry and Energy Technology (NTNU; 2012).
  • PhD in Physical Metallurgy (NTNU; 2016).
     

2021 - present: Senior Chemical Engineer (NOAH AS), Associate Professor II (NTNU)

  • Recycling of wastes from municipal solid waste incineration (MSWI) and other industrial wastes.
     

2016 - 2020: Postdoctor; SFI Metal Production

  • Associated with the Norwegian Waste to Value project and the European RemovAl project on recycling and refining of metallurgical waste streams.
  • Thermodynamics and modelling of metallurgical processes; including FactSage, ChemApp and HSC Chemistry.
     

2012 - 2016: PhD; Solidification and Casting

  • Impurity control of multicrystalline silicon.
    • Impurity diffusion from crystallization crucibles. 
  • Structure control of multicrystalline silicon.
    • Nucleation, mono-like and high-performance multicrystalline silicon.

Publikasjoner

  • Kronologisk
  • Etter kategori
  • Se alle publikasjoner i Cristin

2021

  • Ekstrøm, Kai Erik; Bugten, Andreas Voll; Eijk, Casper van der; Lazou, Adamantia; Balomenos, E.; Tranell, Gabriella. (2021) Recovery of Iron and Aluminum from Bauxite Residue by Carbothermic Reduction and Slag Leaching. Journal of Sustainable Metallurgy. volum 7.
    Vitenskapelig artikkel
  • Gökelma, Mertol; Aarnæs, Trygve Storm; Maier, Jürgen; F. Renkel, Maria; Ekstrøm, Kai Erik; Friedrich, Bernd; Tranell, Gabriella. (2021) Behavior of Al4C3 Particles During Flotation and Sedimentation in Aluminum Melts. Metallurgical and Materials Transactions B. volum 52B.
    Vitenskapelig artikkel
  • Wallin, Maria; Bugten, Andreas Voll; Tranell, Gabriella; Ekstrøm, Kai Erik. (2021) Valorization of SiMn Sludge for Production of Low-Phosphorus Ferroalloys. Journal of Sustainable Metallurgy. volum 7.
    Vitenskapelig artikkel

2020

  • Ekstrøm, Kai Erik; Bugten, Andreas Voll; Tranell, Gabriella. (2020) Spent potlining: Experimental work and thermochemical modelling in SFI Metal Production. 2020.
    Rapport
  • Solem, Cathrine Kyung Won; Ekstrøm, Kai Erik; Tranell, Gabriella; Aune, Ragnhild Elizabeth. (2020) Evaluation of the Effect of CO2 Cover Gas on the Rate of Oxidation of an AlMgSi Alloy. The Minerals, Metals & Materials Series.
    Vitenskapelig artikkel

2017

  • Autruffe, Antoine; M'hamdi, Mohammed; Schindler, Florian; Heinz, Friedemann D.; Ekstrøm, Kai Erik; Schubert, Martin C.; Di Sabatino Lundberg, Marisa; Stokkan, Gaute. (2017) High performance multicrystalline silicon: Grain structure and iron precipitation. Journal of Applied Physics. volum 122 (13).
    Vitenskapelig artikkel
  • Olsen, Espen; Bergan, Simen; Mehl, Torbjørn; Burud, Ingunn; Ekstrøm, Kai Erik; Di Sabatino Lundberg, Marisa. (2017) Defect related radiative recombination in mono-like crystalline silicon wafers. Physica Status Solidi (a) applications and materials science. volum 214 (8).
    Vitenskapelig artikkel
  • Stokkan, Gaute; Di Sabatino Lundberg, Marisa; Søndenå, Rune; Juel, Mari; Autruffe, Antoine; Adamczyk, Krzysztof; Skarstad, Hanna Vaksvik; Ekstrøm, Kai Erik; Wiig, Marie Syre; You, Chang Chuan; Haug, Halvard; M'hamdi, Mohammed. (2017) Impurity control in high performance multicrystalline silicon. Physica Status Solidi (a) applications and materials science. volum 214 (7).
    Vitenskapelig artikkel

2016

  • Castellanos, Sergio; Ekstrøm, Kai Erik; Autruffe, Antoine; Jensen, Mallory A.; Morishige, Ashley E.; Hofstetter, Jasmin; Yen, Patricia; Lai, Barry; Stokkan, Gaute; del Cañizo, Carlos; Buonassisi, Tonio. (2016) High-Performance and Traditional Multicrystalline Silicon: Comparing Gettering Responses and Lifetime-Limiting Defects. IEEE Journal of Photovoltaics. volum 6 (3).
    Vitenskapelig artikkel
  • Ekstrøm, Kai Erik; Di Sabatino Lundberg, Marisa; Arnberg, Lars; Stokkan, Gaute. (2016) Structure Control of Multicrystalline Silicon. 2016.
    Doktorgradsavhandling
  • Ekstrøm, Kai Erik; Stokkan, Gaute; Autruffe, Antoine; Søndenå, Rune; Dalaker, Halvor; Arnberg, Lars; Di Sabatino, Marisa. (2016) Microstructure of multicrystalline silicon seeded by polysilicon chips and fluidized bed reactor granules. Journal of Crystal Growth. volum 441.
    Vitenskapelig artikkel
  • Ekstrøm, Kai Erik; Søndenå, Rune; Autruffe, Antoine; Stokkan, Gaute; Arnberg, Lars; Di Sabatino, Marisa. (2016) The Effect of Phosphorus Gettering on Fine-Grained Multicrystalline Silicon. Proceedings of the European Photovoltaic Solar Energy Conference.
    Vitenskapelig artikkel
  • Ekstrøm, Kai Erik; Undheim, Espen; Stokkan, Gaute; Arnberg, Lars; Di Sabatino, Marisa. (2016) Beta-Si3N4 particles as nucleation sites in multicrystalline silicon. Acta Materialia. volum 109.
    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
  • Wiig, Marie Syre; Adamczyk, Krzysztof; Haug, Halvard; Ekstrøm, Kai Erik; Søndenå, Rune. (2016) The effect of phosphorus diffusion gettering on recombination at grain boundaries in HPMC-silicon wafers. Energy Procedia. volum 92.
    Vitenskapelig artikkel

2015

  • Ekstrøm, Kai Erik; Stokkan, Gaute; Søndenå, Rune; Dalaker, Halvor; Lehmann, T; Arnberg, Lars; Di Sabatino, Marisa. (2015) Structure and dislocation development in mono-like silicon. Physica Status Solidi (a) applications and materials science. volum 212 (10).
    Vitenskapelig artikkel
  • Søndenå, Rune; Ekstrøm, Kai Erik; Stokkan, Gaute; Dalaker, Halvor; Lehmann, Toni; Arnberg, Lars; Di Sabatino, Marisa. (2015) Effect of Phosphorus Gettering on Quasi-Single-Crystalline Silicon Wafers. Proceedings of the European Photovoltaic Solar Energy Conference.
    Vitenskapelig artikkel

2012

  • Ekstrøm, Kai Erik; Øvrelid, Eivind Johannes; Dahl, Øystein. (2012) Growth and Characterization of Silicon Nanowires for Solar Cell Applications. 2012.
    Mastergradsoppgave

Vitenskapelige artikler

  • Ekstrøm, Kai Erik; Bugten, Andreas Voll; Eijk, Casper van der; Lazou, Adamantia; Balomenos, E.; Tranell, Gabriella. (2021) Recovery of Iron and Aluminum from Bauxite Residue by Carbothermic Reduction and Slag Leaching. Journal of Sustainable Metallurgy. volum 7.
    Vitenskapelig artikkel
  • Gökelma, Mertol; Aarnæs, Trygve Storm; Maier, Jürgen; F. Renkel, Maria; Ekstrøm, Kai Erik; Friedrich, Bernd; Tranell, Gabriella. (2021) Behavior of Al4C3 Particles During Flotation and Sedimentation in Aluminum Melts. Metallurgical and Materials Transactions B. volum 52B.
    Vitenskapelig artikkel
  • Wallin, Maria; Bugten, Andreas Voll; Tranell, Gabriella; Ekstrøm, Kai Erik. (2021) Valorization of SiMn Sludge for Production of Low-Phosphorus Ferroalloys. Journal of Sustainable Metallurgy. volum 7.
    Vitenskapelig artikkel
  • Solem, Cathrine Kyung Won; Ekstrøm, Kai Erik; Tranell, Gabriella; Aune, Ragnhild Elizabeth. (2020) Evaluation of the Effect of CO2 Cover Gas on the Rate of Oxidation of an AlMgSi Alloy. The Minerals, Metals & Materials Series.
    Vitenskapelig artikkel
  • Autruffe, Antoine; M'hamdi, Mohammed; Schindler, Florian; Heinz, Friedemann D.; Ekstrøm, Kai Erik; Schubert, Martin C.; Di Sabatino Lundberg, Marisa; Stokkan, Gaute. (2017) High performance multicrystalline silicon: Grain structure and iron precipitation. Journal of Applied Physics. volum 122 (13).
    Vitenskapelig artikkel
  • Olsen, Espen; Bergan, Simen; Mehl, Torbjørn; Burud, Ingunn; Ekstrøm, Kai Erik; Di Sabatino Lundberg, Marisa. (2017) Defect related radiative recombination in mono-like crystalline silicon wafers. Physica Status Solidi (a) applications and materials science. volum 214 (8).
    Vitenskapelig artikkel
  • Stokkan, Gaute; Di Sabatino Lundberg, Marisa; Søndenå, Rune; Juel, Mari; Autruffe, Antoine; Adamczyk, Krzysztof; Skarstad, Hanna Vaksvik; Ekstrøm, Kai Erik; Wiig, Marie Syre; You, Chang Chuan; Haug, Halvard; M'hamdi, Mohammed. (2017) Impurity control in high performance multicrystalline silicon. Physica Status Solidi (a) applications and materials science. volum 214 (7).
    Vitenskapelig artikkel
  • Castellanos, Sergio; Ekstrøm, Kai Erik; Autruffe, Antoine; Jensen, Mallory A.; Morishige, Ashley E.; Hofstetter, Jasmin; Yen, Patricia; Lai, Barry; Stokkan, Gaute; del Cañizo, Carlos; Buonassisi, Tonio. (2016) High-Performance and Traditional Multicrystalline Silicon: Comparing Gettering Responses and Lifetime-Limiting Defects. IEEE Journal of Photovoltaics. volum 6 (3).
    Vitenskapelig artikkel
  • Ekstrøm, Kai Erik; Stokkan, Gaute; Autruffe, Antoine; Søndenå, Rune; Dalaker, Halvor; Arnberg, Lars; Di Sabatino, Marisa. (2016) Microstructure of multicrystalline silicon seeded by polysilicon chips and fluidized bed reactor granules. Journal of Crystal Growth. volum 441.
    Vitenskapelig artikkel
  • Ekstrøm, Kai Erik; Søndenå, Rune; Autruffe, Antoine; Stokkan, Gaute; Arnberg, Lars; Di Sabatino, Marisa. (2016) The Effect of Phosphorus Gettering on Fine-Grained Multicrystalline Silicon. Proceedings of the European Photovoltaic Solar Energy Conference.
    Vitenskapelig artikkel
  • Ekstrøm, Kai Erik; Undheim, Espen; Stokkan, Gaute; Arnberg, Lars; Di Sabatino, Marisa. (2016) Beta-Si3N4 particles as nucleation sites in multicrystalline silicon. Acta Materialia. volum 109.
    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
  • Wiig, Marie Syre; Adamczyk, Krzysztof; Haug, Halvard; Ekstrøm, Kai Erik; Søndenå, Rune. (2016) The effect of phosphorus diffusion gettering on recombination at grain boundaries in HPMC-silicon wafers. Energy Procedia. volum 92.
    Vitenskapelig artikkel
  • Ekstrøm, Kai Erik; Stokkan, Gaute; Søndenå, Rune; Dalaker, Halvor; Lehmann, T; Arnberg, Lars; Di Sabatino, Marisa. (2015) Structure and dislocation development in mono-like silicon. Physica Status Solidi (a) applications and materials science. volum 212 (10).
    Vitenskapelig artikkel
  • Søndenå, Rune; Ekstrøm, Kai Erik; Stokkan, Gaute; Dalaker, Halvor; Lehmann, Toni; Arnberg, Lars; Di Sabatino, Marisa. (2015) Effect of Phosphorus Gettering on Quasi-Single-Crystalline Silicon Wafers. Proceedings of the European Photovoltaic Solar Energy Conference.
    Vitenskapelig artikkel

Rapport

  • Ekstrøm, Kai Erik; Bugten, Andreas Voll; Tranell, Gabriella. (2020) Spent potlining: Experimental work and thermochemical modelling in SFI Metal Production. 2020.
    Rapport
  • Ekstrøm, Kai Erik; Di Sabatino Lundberg, Marisa; Arnberg, Lars; Stokkan, Gaute. (2016) Structure Control of Multicrystalline Silicon. 2016.
    Doktorgradsavhandling
  • Ekstrøm, Kai Erik; Øvrelid, Eivind Johannes; Dahl, Øystein. (2012) Growth and Characterization of Silicon Nanowires for Solar Cell Applications. 2012.
    Mastergradsoppgave

Formidling

2019

  • Faglig foredrag
    Ekstrøm, Kai Erik. (2019) Activities on spent potlining. SFI Metal Production Autumn Meeting ; 2019-11-05 - 2019-11-06.
  • Faglig foredrag
    Ekstrøm, Kai Erik. (2019) Refining of Metallurgical Silicon by Solidification and Leaching. Short Course on Theory and Processes for Silicon Refining and Solar Grade Silicon Production . SFI Metal Production; 2019-10-16 - 2019-10-17.

2018

  • Vitenskapelig foredrag
    Dalaker, Halvor; Ekstrøm, Kai Erik. (2018) Recovery of manganese from sludge through reduction with spent pot lining from aluminium industry—a modelling study. Infacon XV . The Southern African Institute of Mining and Metallurgy; Cape Town. 2018-02-25 - 2018-02-28.
  • Faglig foredrag
    Ekstrøm, Kai Erik. (2018) Spent potlining and bauxite residue: Combined use in the Elkem process. SFI Metal Production Spring Meeting ; Trondheim. 2018-04-18 - 2018-04-19.
  • Vitenskapelig foredrag
    Ekstrøm, Kai Erik; Dalaker, Halvor; Wallin, Maria; Moosavi-Khoonsari, Elmira; Tranell, Gabriella. (2018) Extraction of nickel from iron sludge. 15th International Ferro-Alloys Congress ; Cape Town. 2018-02-26 - 2018-02-28.
  • Vitenskapelig foredrag
    Ekstrøm, Kai Erik; Wallin, Maria; Tranell, Gabriella. (2018) Red mud and spent potlining as alternative raw materials in pig-iron and ferrosilicon production. Extraction 2018 - Peter Hayes Symposium on Pyrometallurgical Processing ; 2018-08-26 - 2018-08-29.
  • Vitenskapelig foredrag
    Wallin, Maria; Ekstrøm, Kai Erik; Tranell, Gabriella. (2018) Production of ferromanganese alloys from silicomanganese sludge and an iron source. Extraction 2018 - Peter Hayes Symposium on Pyrometallurgical Processing ; Ottawa. 2018-08-26 - 2018-08-29.

2016

  • Poster
    Ekstrøm, Kai Erik; Di Sabatino, Marisa; Bellmann, Martin Pawel; Ciftja, Arjan; Roligheten, Rune; Stokkan, Gaute. (2016) Growth of multiple silicon ingots in a new type of reusable silicon nitride crucible. The 9th International Workshop on Crystalline Silicon Solar Cells ; 2016-10-10 - 2016-10-12.

2013

  • Faglig foredrag
    Ekstrøm, Kai Erik; Autruffe, Antoine; Dalaker, Halvor; Søndenå, Rune; Stokkan, Gaute; Arnberg, Lars; Di Sabatino Lundberg, Marisa. (2013) Characterization of mono-like silicon cast by a seed-assisted Bridgman method. 7th International workshop on Crystalline silicon solar cell ; Fukuoka. 2013-10-22 - 2013-10-25.
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