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Enhanced thermoelectric performance in TiNiSn-based half-Heuslers
R A Downie1, D A MacLaren, R I Smith
1Institute of Chemical Sciences and Centre for Advanced Energy Storage and Recovery, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH 14 4AS, UK.
Abstract:
Thermoelectric figures of merit, ZT > 0.5, have been obtained in arc-melted TiNiSn-based ingots. This promising conversion efficiency is due to a low lattice thermal conductivity, which is attributed to excess nickel in the half-Heusler structure.
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