Mg-Si system thermoelectrical conversion material, a manufacturing method for the same, the sintered compact for thermoelectrical conversion, thermoelectric conversion elements, and a thermoelectrical conversion module

Japanese Patent JP6222666

B2

Provided is a production method with high productivity, which is not susceptible to the occurrence of cracks and thus has high yield when a sintered body of a thermoelectric conversion material is produced or when a sintered body for a thermoelectric conversion part of a predetermined size is cut out of a sintered body, and which is capable of cutting a plurality of sintered bodies for thermoelectric conversion parts out of one sintered body in cases where the sintered body is large in size. Also 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, and it is also preferable that the total content of elements other than Mg and Si is 0.2-5.0 at% in terms of atomic weight ratio.

Tsutomu Iida
Tomoko Ohta
Ryosuke Miyahara
Yutaka Taguchi

JP2014550175A

November 01, 2017

November 25, 2013

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Tokyo University of Science
Yasunaga Co., Ltd.

H01L35/14; C22C23/00; H01L35/34

JP201373960A
JP2012201937A
JP2012104558A
JP2006128235A
JP2002285274A

WO2008075789A1
WO2011002035A1

Masayuki Masabayashi

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