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Long-term stability of phase-separated half-Heusler compounds

: Krez, J.; Balke, B.; Ouardi, S.; Selle, S.; Höche, T.; Felser, C.; Hermes, W.; Schwind, M.

	Physical chemistry, chemical physics : PCCP 17 (2015), No.44, pp.29854-29858 ISSN: 1463-9076

	English
	Journal Article
	Fraunhofer IWM ( IMWS) ()

Abstract
Half-Heusler (HH) compounds have shown high figure of merit up to 1.5. Here, we address the long-term stability of n- and p-type HH materials. For this purpose, we investigated HH materials based on the Ti0.3Zr0.35Hf0.35NiSn-system after 500 cycles (1700 h) from 373 to 873 K. Both compounds exhibit a maximum Seebeck coefficient of

: http://publica.fraunhofer.de/documents/N-418627.html