Electrical properties of the pseudo-binary (Ga2Te3)x-(Bi0.5Sb1.5Te3)1-x (x=0∼0.2) alloys prepared by spark plasma sintering

被引：0
|
作者：
Xue Haifeng [1 ]
Cui Jiaolin
Xiu Weijie
机构：
[1] China Univ Min & Technol, Xuzhou 221008, Peoples R China
[2] Xingbo Univ Technol, Ningbo 315016, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2007年 / 36卷 / 09期
关键词：
pseudo-binary alloys (Ga2Te3)(x)-(Bi0.5Sb1.5Te3)(1-x) (x=0 similar to 0.2); spark plasma sintering (SPS); electrical properties;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The electrical properties of (Ga2Te3)(x)-(Bi0.5Sb1.5Te3)(1-x) (x=0 similar to 0.2) alloys fabricated by spark plasma sintering technique were investigated and compared with that of the ternary Bi0.5Sb1.5Te3 alloy. Measurements revealed that the (Ga2Te3)(x)(Bi0.5Sb1.5Te3)(1-x) (x=0.1) alloys exhibit a larger sigma value of 3.7 x 10(4) Omega(-1).m(-1) than the ternary alloy Bi0.5Sb1.5Te3 without noticeable loss of Seebeck coefficient at 318 K. The maximum power factor of 2.1 x 10(-3) (W.K-2.m(-1)) was obtained and calculated from the alpha and sigma values for the (Ga2Te3)(x)-(Bi0.5Sb1.5Te3)(1-x) materials (x=0.1), being approximately 1.5 times higher that of ternary Bi0.5Sb1.5Te3 alloy at 318 K.
引用
收藏
页码：1653 / 1656
页数：4
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