Kai Erik Ekstrøm
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
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 foredragEkstrøm, Kai Erik. (2019) Activities on spent potlining. SFI Metal Production Autumn Meeting ; 2019-11-05 - 2019-11-06.
-
Faglig foredragEkstrøm, 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 foredragDalaker, 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 foredragEkstrøm, 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 foredragEkstrøm, 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 foredragEkstrøm, 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 foredragWallin, 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
-
PosterEkstrøm, 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 foredragEkstrøm, 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.