Title:
Mg-Si THERMOELECTRIC CONVERSION MATERIAL, METHOD FOR PRODUCING SAME, SINTERED BODY FOR THERMOELECTRIC CONVERSION, THERMOELECTRIC CONVERSION ELEMENT, AND THERMOELECTRIC CONVERSION MODULE
Document Type and Number:
WIPO Patent Application WO/2014/084163
Kind Code:
A1
Abstract:
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 thermoelectric conversion material which exhibits stably high thermoelectric conversion performance; a sintered body for thermoelectric conversion, which uses this Mg-Si thermoelectric conversion material; a thermoelectric conversion element having excellent durability; and a thermoelectric conversion module. A method for producing an Mg-Si thermoelectric conversion material according to the present invention comprises a step for heating and melting a composition starting material that contains Mg, Si, Sb and Zn. It is preferable that the contents of Sb and Zn in the composition starting material 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.
Inventors:
IIDA TSUTOMU (JP)
OTO YUMIKO (JP)
MIYAHARA RYOSUKE (JP)
TAGUCHI YUTAKA (JP)
OTO YUMIKO (JP)
MIYAHARA RYOSUKE (JP)
TAGUCHI YUTAKA (JP)
Application Number:
PCT/JP2013/081627
Publication Date:
June 05, 2014
Filing Date:
November 25, 2013
Export Citation:
Assignee:
UNIV TOKYO SCIENCE FOUNDATION (JP)
YASUNAGA KK (JP)
YASUNAGA KK (JP)
International Classes:
H01L35/18; C22C1/02; C22C23/00; H01L35/14; H01L35/34; B22F3/14; B22F3/15; C22C1/04
Domestic Patent References:
| WO2008075789A1 | 2008-06-26 | |||
| WO2011002035A1 | 2011-01-06 |
Foreign References:
| JP2012201937A | 2012-10-22 | |||
| JP2012104558A | 2012-05-31 | |||
| JP2006128235A | 2006-05-18 | |||
| JP2002285274A | 2002-10-03 | |||
| JP2002285274A | 2002-10-03 | |||
| JP2006128235A | 2006-05-18 | |||
| JP2011029632A | 2011-02-10 |
Other References:
See also references of EP 2913857A4
Attorney, Agent or Firm:
SHOBAYASHI, Masayuki (JP)
Right wood Masayuki (JP)
Right wood Masayuki (JP)
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