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Løvvik, Ole Martin
(2021).
Casting Materials Acceleration Platform and the accelerated search for thermoelectric materials.
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Løvvik, Ole Martin
(2021).
Screening of materials for thermoelectric conversion of heat into electricity.
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Løvvik, Ole Martin
(2020).
Elektronikk i varme omgivelser og termoelektriske generatorer.
[Radio].
Intervju i Abels tårn, NRK P2.
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Løvvik, Ole Martin; Graff, Joachim Seland; Schrade, Matthias; Sunding, Martin Fleissner; Wright, Daniel Nilsen & Song, Xin
[Show all 10 contributors for this article]
(2020).
Silicide module produced in the TESil project.
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Løvvik, Ole Martin
(2019).
Klimasending fra Eidsvolls plass om bærekraft og fornybar energi.
[Radio].
Intervju i Abels tårn, NRK2.
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Løvvik, Ole Martin; Flage-Larsen, Espen & Skomedal, Gunstein
(2019).
Atomistic simulations and machine learning methods for development of thermoelectric materials.
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Shyikira, Antoine de Padoue; Skomedal, Gunstein & Middleton, Peter Hugh
(2019).
Performance and stability of silicide based thermoelectric modules.
Show summary
Long-term studies on thermoelectric generator uni-couple based on N-type magnesium silicide (Mg2.01Si0.49Sn0.5Sb0.01) and P-type higher manganese silicide (Mn0.98Mo0.02Si1.73Ge0.02) materials are presented, in the operating temperature range of 2000C-4000C. Emphasis is put on the performance and reliability of the current collector configuration, especially, on the hot side of the module and on the thermomechanical stresses that are created during operation and lifetime testing, as a result of large temperature gradients experienced across the thermoelectric legs. With silver (Ag) paste as contact material, the long term-stability of the uni-couples were carried out on non-metalized legs and gold metalized legs under ambient conditions. Under isothermal and thermocycling tests, the non-metalized legs showed a gradual decrease in open circuit voltage (after a period of 200hours) and increase in internal resistance. In contrary, the metalized leg-based module was robust and stable for the same isothermal period, however, after 300cycles the n-type material showed mechanical failure (cracks) but the p-type resisted. Post-operation analysis by SEM/EDS and mechanical testing revealed that oxidation, adherence of the contact material and diffusion of the bonding material were the cause of performance degradation of the unicouples.
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Løvvik, Ole Martin
(2019).
Nye løsninger for å lage strøm av spillvarme kan gi muligheter for norsk industri. Kommentarer i artikkelen.
Teknisk Ukeblad.
ISSN 0040-2354.
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Løvvik, Ole Martin; Berland, Kristian; Remonato, Filippo; Sagvolden, Espen; Flage-Larsen, Espen & Schrade, Matthias
[Show all 13 contributors for this article]
(2019).
Screening thermoelectric materials with ab initio atomistic modelling and machine learning techniques.
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Løvvik, Ole Martin
(2018).
Thermoelectric materials for energy harvesting – new modelling tools with predictive power.
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Løvvik, Ole Martin; Flage-Larsen, Espen & Skomedal, Gunstein
(2018).
Screening silicide thermoelectric materials using ab initio transport calculations.
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Løvvik, Ole Martin
(2018).
Følger av Trumps forhold til forskning.
[Radio].
Intervju i Ekko, NRK P2.
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Løvvik, Ole Martin
(2018).
Trump ut av storsatsing på fornybar energi.
[Radio].
Intervju i Ekko, NRK P2.
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Løvvik, Ole Martin
(2018).
Machine learning of energy materials.
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Graff, Joachim Seland
(2018).
Next Generation Thermoelectric Materials based on Silicon.
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Løvvik, Ole Martin
(2018).
Thermoelectric materials for energy harvesting – high-throughput screening using new tools.
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Shyikira, Antoine de Padoue; Skomedal, Gunstein; Middleton, Hugh P. & Sætre, Tor Oskar
(2018).
High Temperature Oxidation of Higher Manganese silicide and Alloys.
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Løvvik, Ole Martin
(2018).
Moderne metoder innen modellering og maskinlæring kan gi nye løsninger for energieffektivisering og utnyttelse av spillvarme.
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Riis, Henrik; Song, Xin; Prytz, Øystein & Finstad, Terje
(2018).
Characterization of Cu/ZnSb interfaces.
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Song, Xin; Graff, Joachim Seland; Götz, Adam; Skomedal, Gunstein & Finstad, Terje
(2018).
Investigating the influence of synthesis approach on the microstructure and thermoelectric properties for HMS.
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Løvvik, Ole Martin
(2017).
Hva skjer hvis du setter et kjøleskap i fryseren?
[Radio].
Intervju i Ekko, NRK P2.
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Løvvik, Ole Martin
(2017).
Californias miljøkamp inspirerer.
[Radio].
Intervju i Ekko, NRK P2.
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Løvvik, Ole Martin; Shulumba, Nina; Hellman, Olle; Persson, Clas & Berland, Kristian
(2017).
Predicted figure-of-merit of half-Heusler alloys - importance of scattering mechanisms.