Title:
METHOD FOR PRODUCING THERMOELECTRIC CONVERSION ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/193481
Kind Code:
A1
Abstract:
Conventional thermoelectric conversion elements have a problem such that if a thermoelectric conversion element is increased in size for mass production, the pressure during the sintering under pressure becomes insufficient due to load shortage caused by increase in the area of a surface to be pressurized, so that the thermoelectric conversion element becomes susceptible to relative density deficiency. As a means for solving the problem, the present invention provides a method for producing a thermoelectric conversion element, said method being characterized by comprising: a step for obtaining a mixture by mixing a skutterudite type thermoelectric conversion material powder which contains Sb and a sintering assistant which contains a compound that is composed of Mn and Sb; and a step for sintering the mixture.
Inventors:
MATSUDA MICHIKO (JP)
SHIMADA TAKESHI (JP)
SHIMADA TAKESHI (JP)
Application Number:
PCT/JP2021/011561
Publication Date:
September 30, 2021
Filing Date:
March 22, 2021
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
H01L35/18; H01L35/34
Domestic Patent References:
| WO2017038988A1 | 2017-03-09 | |||
| WO2013100074A1 | 2013-07-04 | |||
| WO2013009430A1 | 2013-01-17 | |||
| WO2004049464A1 | 2004-06-10 |
Foreign References:
| JP2005200249A | 2005-07-28 | |||
| JPH0368743A | 1991-03-25 |
Other References:
See also references of EP 4131436A4
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