US 2015/0311419 A1 · Mg-Si SYSTEM THERMOELECTRIC CONVERSION MATERIAL, METHOD FOR PRODUCING SAME, SINTERED BODY FOR THERMOELECTRIC CONVERSION, THERMOELECTRIC CONVERSION ELEMENT, AND THERMOELECTRIC CONVERSION MODULE

Abstract

Provided are: an Mg—Si system thermoelectric conversion material which exhibits stably high thermoelectric conversion performance; a sintered body for thermoelectric conversion, which uses this Mg—Si system thermoelectric conversion material; a thermoelectric conversion element having excellent durability; and a thermoelectric conversion module. A method for producing an Mg—Si system thermoelectric conversion material according to the present invention comprises a step for heating and melting a starting material composition that contains Mg, Si, Sb and Zn. It is preferable that the contents of Sb and Zn in the starting material composition are respectively 0.1-3.0 at % in terms of atomic weight ratio.

Claims9

Dependent claims

An Mg—Si system thermoelectric conversion material expressed by:

a chemical composition formula:
Mg66.7-aSi33.3-bSbxZnyAz (A represents one or more types of elements selected from a group consisting of Al, Bi, P, Ga, As, In, Ag, Cu, Au, Ni, Fe, Mn, Co, Ta, Nd, Nb, and Pb. x, y, and z satisfy conditions of 0.1≦x≦3.0, 0.1≦y≦3.0, 0≦z≦3.0, and 0.2≦x+y+z≦5.0. a and b are positive numbers and satisfy a condition of a+b=x+y+z.).

Dependencies are inferred from the claim text.

Mg-Si SYSTEM THERMOELECTRIC CONVERSION MATERIAL, METHOD FOR PRODUCING SAME, SINTERED BODY FOR THERMOELECTRIC CONVERSION, THERMOELECTRIC CONVERSION ELEMENT, AND THERMOELECTRIC CONVERSION MODULE

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Mg-Si SYSTEM THERMOELECTRIC CONVERSION MATERIAL, METHOD FOR PRODUCING SAME, SINTERED BODY FOR THERMOELECTRIC CONVERSION, THERMOELECTRIC CONVERSION ELEMENT, AND THERMOELECTRIC CONVERSION MODULE

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Abstract

Claims9