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PROCESS FOR PRODUCING THERMOELECTRIC CONVERSION MATERIAL, THERMOELECTRIC CONVERSION MATERIAL, AND PRODUCTION APPARTUS FOR USE IN THE PRODUCTION PROCESS

Foreign code F120006858
File No. S2010-0961-C0
Posted date Sep 19, 2012
Country WIPO
International application number 2011JP065096
International publication number WO 2012/002509
Date of international filing Jun 30, 2011
Date of international publication Jan 5, 2012
Priority data
  • P2010-152228 (Jul 2, 2010) JP
Title PROCESS FOR PRODUCING THERMOELECTRIC CONVERSION MATERIAL, THERMOELECTRIC CONVERSION MATERIAL, AND PRODUCTION APPARTUS FOR USE IN THE PRODUCTION PROCESS
Abstract

Provided is a process for producing a thermoelectric conversion material which is configured of a metal (A) comprising an alkali metal or alkaline earth metal, a transition metal (M), and oxygen (O) and which is represented by the general formula AxMyOz wherein x, y, and z are integers governed by the valences of the respective elements, the process comprising using a massive metal oxide (10) which is a solid starting material for the thermoelectric conversion material and a salt (11) in a solid, liquid, or gaseous state to react the massive metal oxide (10) with the salt (11) through diffusion reaction, thereby yielding the thermoelectric conversion material which is configured of oriented crystals. Also provided is a production apparatus (13) for use in the production process, the apparatus including a reaction vessel (14) into which the massive metal oxide (10) and the salt (11) are introduced and a heating means which heats the massive metal oxide (10) and the salt (11) within the reaction vessel (14) to cause the diffusion reaction to proceed. With the process, it is possible to produce a polycrystalline thermoelectric conversion material at a lower cost and more easily than single-crystal thermoelectric conversion materials and to approximate the performance of the polycrystalline material to that of the single-crystal materials.

  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • KYUSHU INSTITUTE OF TECHNOLOGY,
  • SHIMOZAKI TOSHITADA,
  • NISHIWAKI AKIFUMI
  • Inventor
  • SHIMOZAKI TOSHITADA,
  • NISHIWAKI AKIFUMI
IPC(International Patent Classification)
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