AgPbSbTe thermoelectric materials fabricated by mechanical alloying and spark plasma sintering (SPS)

被引：0
|
作者：
Zhou, Min [1 ]
Li, Laifeng [1 ]
Li, Jingfeng [2 ]
机构：
[1] Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
[2] State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
来源：
Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research | 2010年 / 24卷 / 02期
关键词：
Thermoelectric equipment - Silver alloys - Spark plasma sintering - Phase composition - Thermal conductivity - Fabrication - Thermoelectricity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
High performance AgPbSbTe thermoelectric materials were fabricated by mechanical alloying (MA) and spark plasma sintering (SPS). The effect of preparation technique on the thermoelectric properties was studied. The results showed that the phase composition and thermoelectric properties are related to the mechanical alloying. Appropriate SPS technique could decrease crystal growing, increase phonon scattering and reduce thermal conductivity. A maximum power factor of 18 μW/K2cm and a minimum thermal conductivity of 1.1 W/m K were obtained. A maximum ZT value of 1.2 was obtained at 700 K for the sample fabricated by MA (350 rpm for 4 hrs) and SPS (sintering at 673 K for 5 minute). ©Copyright.
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页码：154 / 158
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