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POLYCRYSTALLINE MAGNESIUM SILICIDE AND USE THEREOF NEW

外国特許コード F180009492
整理番号 S2018-0235-N0
掲載日 2018年11月1日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2017JP024671
国際公開番号 WO 2018012369
国際出願日 平成29年7月5日(2017.7.5)
国際公開日 平成30年1月18日(2018.1.18)
優先権データ
  • 特願2016-137976 (2016.7.12) JP
発明の名称 (英語) POLYCRYSTALLINE MAGNESIUM SILICIDE AND USE THEREOF NEW
発明の概要(英語) Provided are polycrystalline magnesium silicide containing only carbon as a dopant and having carbon distributed at the crystal grain boundaries and within the crystal grains, a thermoelectric conversion material obtained using the polycrystalline magnesium silicide, a sintered compact, a thermoelectric conversion element, and a thermoelectric conversion module, and methods for producing polycrystalline magnesium silicide and a sintered compact.
従来技術、競合技術の概要(英語) BACKGROUND ART
In recent years, in accordance with the increase in environmental problems, various types of efficient utilization of energy has been studied a variety of means. In particular, with the increase in industrial waste, the waste heat generated at the time of these substances has been a problem can be effectively utilized. For example in a large waste incineration facility, waste heat generated by high pressure steam, this steam of the steam turbine is rotated by the power generation of the waste heat recovery is being performed. However, a waste incineration facility accounts for the majority of waste incineration facilities of medium or small, a small amount of discharge of the waste heat, waste heat recovery steam turbine power generation or the like can be employed is not a method.
In such a medium or small waste incineration facility can be used in power generation using waste heat such as a method, for example, using the Seebeck effect or Peltier effect is a reversible thermoelectric conversion material performs thermoelectric conversion, the thermoelectric conversion element or a method using a thermoelectric conversion module has been proposed. Thermoelectric conversion element, the thermoelectric conversion material and the thermoelectric conversion portion configured from the electrode portion, the thermoelectric conversion module, thermoelectric conversion element attached to a plurality of the present invention.
In the prior art, a number of thermoelectric conversion material is proposed, in which a high temperature whereby magnesium silicide thermoelectric conversion element area in addition to the better the performance, both the raw materials of magnesium and silicon is present in abundance as a resource is not toxic and has attracted attention from (for example, see Patent Document 1).
For example, Sn, Ge and at least one kind of element selected from Al and 1, Ag, As, cu, Sb, P, B is selected from at least one kind of element 1 as a dopant is known powder whereby magnesium silicide (for example, see Patent Document 2).
In addition, Sb, P, As, Bi, at least one selected from Al 1 doped with the dopant A mg2 Si1-x Snx in, transition metal B of the elements and/or transition metal silicide with the dispersion of B mg2 Si1-x Snx, Aa,Bbpolycrystalline body has been known (for example, see Patent Document 3).
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • TOKYO UNIVERSITY OF SCIENCE FOUNDATION
  • 発明者(英語)
  • IIDA TSUTOMU
  • KONDO SYUNSUKE
  • NAKATANI MITSUNOBU
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN ST TD TG
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