Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

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
Journal Article
Fraunhofer IWM ( IMWS) ()

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