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Half-Heusler (TiZrHf)NiSn Unileg Module with High Powder Density
Solid State Chemistry and Catalysis Laboratory, Empa—Swiss Federal Laboratories for Materials Testing and Research, Ueberlandstrasse 129, Duebendorf CH-8600, Switzerland
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Received: 22 February 2013; in revised form: 19 March 2013 / Accepted: 20 March 2013 / Published: 27 March 2013
Abstract: (TiZrHf)NiSn half-Heusler compounds were prepared by arc melting and their thermoelectric properties characterized in the temperature range between 325 K and 857 K, resulting in a Figure of Merit ZT ≈ 0.45. Furthermore, the prepared samples were used to construct a unileg module. This module was characterized in a homemade thermoelectric module measurement stand and yielded 275 mW/cm2 and a maximum volumetric power density of 700 mW/cm3. This was reached using normal silver paint as a contacting material; from an improved contacting, much higher power yields are to be expected.
Keywords: thermoelectricity; thermoelectric modules; half-Heusler compounds
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Populoh, S.; Brunko, O.C.; Gałązka, K.; Xie, W.; Weidenkaff, A. Half-Heusler (TiZrHf)NiSn Unileg Module with High Powder Density. Materials 2013, 6, 1326-1332.
Populoh S, Brunko OC, Gałązka K, Xie W, Weidenkaff A. Half-Heusler (TiZrHf)NiSn Unileg Module with High Powder Density. Materials. 2013; 6(4):1326-1332.
Populoh, Sascha; Brunko, Oliver C.; Gałązka, Krzysztof; Xie, Wenjie; Weidenkaff, Anke. 2013. "Half-Heusler (TiZrHf)NiSn Unileg Module with High Powder Density." Materials 6, no. 4: 1326-1332.