| 发明名称 |
p-TYPE THERMOELECTRIC MATERIAL AND ITS MANUFACTURING METHOD |
| 摘要 |
PROBLEM TO BE SOLVED: To provide a light-weight Mg<SB>2</SB>Si-based p-type thermoelectric material constituted of a material abundant in resources. SOLUTION: The p-type thermoelectric material comprises Mg<SB>2</SB>Si to which Na is added and Na atom is substituted at the Mg site of Mg<SB>2</SB>Si. The additive amount of Na of the p-type thermoelectric material is >0.5 at% and≤4.2 at%. The p-type thermoelectric material is manufactured by keeping a mixture for which Mg powder, Si powder and granular Na are each mixed by a prescribed ratio in the atmosphere where the temperature is adjusted to be equal to or higher than the melting point of Mg and lower than the melting point of Mg<SB>2</SB>Si and using a solid-liquid phase reaction method wherein Mg and Na of a liquid phase and Mg<SB>2</SB>Si of a solid phase coexist. COPYRIGHT: (C)2009,JPO&INPIT
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| 申请公布号 |
JP2009094497(A) |
申请公布日期 |
2009.04.30 |
| 申请号 |
JP20080238254 |
申请日期 |
2008.09.17 |
| 申请人 |
TOYOTA INDUSTRIES CORP;TOYOHASHI UNIV OF TECHNOLOGY |
发明人 |
YAMANA KEITA;KINOSHITA KYOICHI;TANIZAWA MOTOHARU;TODAKA GIICHI;UMEMOTO MINORU;NIWA HARUSUKE;TSUCHIYA KOICHI;KAWAI TAKAHIRO |
| 分类号 |
H01L35/14;B22F3/10;B22F3/14;C22C23/00;H01L35/34 |
主分类号 |
H01L35/14 |
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