Scavenging Elemental Sb Through Addition of NbSb2 to Mm(0.9)Fe(3.5)Co(0.5)Sb(12) Skutterudites

作者：Zhang L^*; Zhou C; Morelli D; Sakamoto J

来源：Journal of Electronic Materials, 2012, 41(6): 1601-1605.

DOI：10.1007/s11664-011-1893-5

• Skutterudite
• microstructure
• stability
• antimony
• thermoelectricity

Our previous work identified thermal instability of -type skutterudite as a primary cause of degradation during thermoelectric generator operation at 650A degrees C. Residual Sb in the microstructure was believed to be the cause of diminished thermal stability, especially above the melting point of Sb (631A degrees C). This work investigated addition of Nb to -type skutterudite to from NbSb2, thus scavenging elemental Sb. The results of this work are reported, along with comprehensive thermoelectric property characterization of the -type skutterudite + NbSb2 composites.

• 出版日期2012-6