Solid-State Synthesis and Thermoelectric Properties of Mg2Si1-x Sn x

被引：10

作者：

You, Sin-Wook ^{[1
]}

Kim, Il-Ho ^{[1
]}

Choi, Soon-Mok ^{[2
]}

Seo, Won-Seon ^{[2
]}

Kim, Sun-Uk ^{[3
]}

机构：

[1] Korea Natl Univ Transportat, Dept Mat Sci & Engn RIC ReSEM, Chungbuk 380702, South Korea

[2] Korea Inst Ceram Engn & Technol, Energy & Environm Mat Div, Seoul 153801, South Korea

[3] Res Inst Ind Sci & Technol, Funct Mat Res Dept, Pohang 790330, South Korea

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2013年 / 42卷 / 07期

关键词：

Thermoelectric; magnesium silicide; solid solution; mechanical alloying; SEMICONDUCTORS;

D O I：

10.1007/s11664-012-2296-y

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Mg2Si1-x Sn (x) (0 a parts per thousand currency sign x a parts per thousand currency sign 1) solid solutions have been successfully prepared by mechanical alloying and hot pressing as a solid-state synthesis route. All specimens were identified as phases with antifluorite structure. The electrical conduction changed from n-type to p-type at room temperature for x a parts per thousand yen 0.5 due to the intrinsic properties of Mg2Sn. The absolute value of the Seebeck coefficient decreased with increasing temperature, and the electrical conductivity increased with increasing temperature; this is indicative of nondegenerate semiconducting behavior. The thermal conductivity was reduced by Mg2Si-Mg2Sn solid solution due to phonon scattering by the alloying effect.

引用

页码：1490 / 1494

页数：5

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