Title

Compressibility And Thermoelectric Behavior Of Ticosb Half-heusler Compound At High Pressures

Document Type

Article

Publication Date

1-1-2018

Publication Title

Intermetallics

Publisher

Elsevier Ltd

Volume

95

First page number:

137

Last page number:

143

Abstract

We have performed high-pressure structural, electrical, and thermal property measurements on half-Heusler thermoelectric compound, TiCoSb. High-pressure powder diffraction measurements have been performed in an angle-dispersive geometry using synchrotron x-rays up to 115 GPa using a diamond anvil cell. The results show the cubic crystal structure (F-43m) stable and no pressure induced structural phase transitions were observed over the entire pressure range. The electrical and thermal properties were studied up to 5 GPa using a Paris-Edinburgh press equipped with a specialized sample cell assembly. The compressibility, variation of thermal conductivity, Seebeck co-efficient and thermoelectric figure of merit (ZT) for the material are discussed in detail. © 2018 Elsevier Ltd

Keywords

Equation of state; Half-Heusler; High-pressure; Seebeck coefficient; Thermoelectric material

Language

English

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