Effect of Refractory Tantalum Metal Filling on the Microstructure and Thermoelectric Properties of Co₄Sb₁₂ Skutterudites.

ABSTRACT: We report a systematic investigation of the microstructure and thermoelectric properties of refractory element-filled nanostructured Co₄Sb₁₂ skutterudites. The refractory tantalum (Ta) metal-filled Co₄Sb₁₂ samples (Ta _x Co₄Sb₁₂ (x = 0, 0.4, 0.6, and 0.8)) are synthesized using a solid-state synthesis route. All the samples are composed of a single skutterudite phase. Meanwhile, nanometer-sized equiaxed grains are present in the Ta_0.2Co₄Sb₁₂ and Ta_0.4Co₄Sb₁₂ samples, and bimodal distributions of equiaxed grains and elongated grains are observed in Ta_0.6Co₄Sb₁₂ and Ta_0.8Co₄Sb_12<

SUBMITTER: Trivedi V 

PROVIDER: S-EPMC7876860 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature