HYDROGENATION OF Zr0.9Ti0.1CrxFe2-x INTERMETALLIC COMPOUNDS: FREE ELECTRON MODEL FOR MAGNETIC SUSCEPTIBILITY AND THERMOELECTRIC POWER

HYDROGENATION OF Zr0.9Ti0.1CrxFe2-x INTERMETALLIC COMPOUNDS: FREE ELECTRON MODEL FOR MAGNETIC SUSCEPTIBILITY AND THERMOELECTRIC POWER

The magnetic susceptibility and thermoelectric power of Zr0.9Ti0.1CrxFe2-x intermetallic compounds were investigated as functions of hydrogen content. The alloys are paramagnetic, with magnetic susceptibility and Seebeck coefficient increasing with the amount of stored hydrogen. The susceptibility i...

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Veröffentlicht in:Review of Progress in Quantitative Nondestructive Evaluation Volume 27B (AIP Conference Proceedings Volume 975) 2008-01, Vol.975, p.1109-1116
Hauptverfasser: Niyomsoan, S, Termsuksawad, P, Goldfarb, R B, Olson, D L, Mishra, B, Kaydanov, V, Gavra, Z
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container_title Review of Progress in Quantitative Nondestructive Evaluation Volume 27B (AIP Conference Proceedings Volume 975)
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creator Niyomsoan, S
Termsuksawad, P
Goldfarb, R B
Olson, D L
Mishra, B
Kaydanov, V
Gavra, Z
description The magnetic susceptibility and thermoelectric power of Zr0.9Ti0.1CrxFe2-x intermetallic compounds were investigated as functions of hydrogen content. The alloys are paramagnetic, with magnetic susceptibility and Seebeck coefficient increasing with the amount of stored hydrogen. The susceptibility is proportional to the Seebeck coefficient and to the d-electron concentration, consistent with a free-electron model. The susceptibility of alloys with lower iron concentration suggests exchange-enhanced Pauli paramagnetism. However, Curie-Weiss paramagnetism likely coexists in alloys with higher iron content. Magnetic and electronic measurements may be used to assess the ability of an alloy to store hydrogen.
doi_str_mv 10.1063/1.2902556
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