Thermoelectric Properties of Nanostructured n-type Yb$_{x}$Co$_{4}$Sb$_{12 }$Bulk
ORAL
Abstract
Nanostructured single phase of Yb filled skutterudites CoSb$_{3}$ with a nominal composition of Yb$_{x}$Co$_{4}$Sb$_{12 }$(X = 0.3, 0.35, 0.4, and 0.5) have been synthesized by ball milling and direct current induced hot press. Thermoelectric properties including electrical conductivity, Seebeck coefficient, and thermal conductivity from room temperature to 550${^\circ}$ were measured and discussed. It was found that Yb$_{0.35}$Co$_{4}$Sb$_{12}$ has the optimal dimensionless figure of merit of 1.2 at 550${^\circ}$.
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