Scavenging Elemental Sb Through Addition of NbSb2to Mm0.9Fe3.5Co0.5Sb12 Skutterudites |
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| Authors: | L. Zhang C. Zhou D. Morelli J. Sakamoto |
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| Affiliation: | 1. Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI, 48824, USA
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| Abstract: | Our previous work identified thermal instability of p-type skutterudite as a primary cause of degradation during thermoelectric generator operation at 650°C. Residual Sb in the microstructure was believed to be the cause of diminished thermal stability, especially above the melting point of Sb (631°C). This work investigated addition of Nb to p-type skutterudite to from NbSb2, thus scavenging elemental Sb. The results of this work are reported, along with comprehensive thermoelectric property characterization of the p-type skutterudite?+?NbSb2 composites. |
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