Thermoelectric performance of ternary Bi-Sb-Ag alloys prepared by mechanical alloying and subsequent pressureless sintering

被引：7
|
作者：
Huang, Rong-jin
Song, Chun-mei
Cai, Fang-shuo
Li, Lai-feng
机构：
[1] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100080, Peoples R China
[2] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
[3] Zunyi Normal Coll, Dept Phys, Zunyi 563002, Peoples R China
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2007年 / 68卷 / 07期
关键词：
alloys; electrical properties; thermal conductivity;
D O I：
10.1016/j.jpcs.2007.02.047
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The alloys with the general formula of Bi85Sb15-xAgx (x = 0, 1, 3, 5, 7) were prepared by mechanical alloying and subsequent pressureless sintering (Bi85Sb15 alloy was used for comparison). Their transport properties involving electrical conductivity, Seebeck coefficient, and thermal conductivity had been investigated in the temperature range of 80-300 K. The maximum absolute value of Seebeck coefficient (120 mu V/K) was found at 160 K in the alloy Bi85Sb15-xAgx (x = 3). The figure-of-merit of alloy Bi85Sb15-xAgx (x = 1) reached a maximum value of 2.16 x 10(-3) K-1 at 219 K, which is as large again as that of the reference sample Bi85Sb15. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1400 / 1404
页数：5
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