Bi_(100-x)Sb_x合金低温热电性能研究  

Thermoelectric Properties of Bi-Sb Alloys Prepared by Annealing

作　　者：刘华军[1] 李来风[1] 曲文生[2] 师昌绪[2] 

机构地区：[1]中国科学院理化技术研究所 [2]中国科学院金属研究所,辽宁沈阳110016

出　　处：《稀有金属材料与工程》2006年第11期1838-1840,共3页Rare Metal Materials and Engineering

基　　金：中国科学院海外基金资助

摘　　要：采用熔融法制备Bi100-xSbx热电材料,并在550K经过500h的恒温加热。用SEM分析了材料的微观形貌,在80K^300K温度范围内测试了材料的电阻率、Seebeck系数、热导率随温度的变化,讨论了材料优质系数随温度的变化关系。x=13的样品在80K优质系数达到4.3×10-3K-1。Thermoelectric cooling is solid-state refrigeration Technique which utilizes electro-thermal transition to get refrigeration good. The Bi100-xSbx alloys were prepared by direct melting of constituent elements, followed by holding 500 h at 550 K. The morphologies of the alloys were studied by SEM. The thermoelectric properties of the samples were investigated by measuring electrical resistivity, Seebeck coefficient and thermal conductivity at the temperature range from 80 K to 300 K. The merit figue reached about 4.3 × 10^-3/K for the alloys of x=13 at 80 K.

关 键 词：热电制冷 优质系数 SEEBECK系数 Bi-Sb合金 

分 类 号：TG132[一般工业技术—材料科学与工程]