文献类型：期刊文献

中文题名：锶掺杂铅酸钡陶瓷的热电性能

英文题名：THERMOELECTRIC PROPERTIES OF STRONTIUM-DOPED BARIUM LEAD OXIDE CERAMICS

作者：栾伟玲[1];毛顺杰[1];涂善东[1];高濂[2];郭景坤[2]

机构：[1]华东理工大学机械与动力工程学院,上海200237;[2]中国科学院上海硅酸盐研究所超微结构与高性能陶瓷国家重点实验室,上海200050

年份：2006

卷号：34

期号：2

起止页码：137

中文期刊名：硅酸盐学报

外文期刊名：Journal of The Chinese Ceramic Society

收录：CSTPCD;;EI(收录号：2006199868173);Scopus;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金(50472046);上海市曙光计划资助项目

语种：中文

中文关键词：热电转换;氧化物;铅酸钡;锶掺杂

外文关键词：thermoelectric conversion; oxide; barium lead oxide; strontium doping

摘要：用固相反应法对BaPbO3材料进行了Sr掺杂，合成了Ba1-xSrxPbO3（0≤x≤1．0）系列粉体材料。对样品进行了X射线衍射分析。通过计算获得了材料的晶胞参数随化学组分的变化规律。将粉体烧结成块状陶瓷，在300～673K测试了该陶瓷的电导率、Seebeck系数和热导率随Sr掺杂量（x）和温度的变化情况。结果发现：随x的增加，晶胞参数（a，b，c）缩短，晶胞体积（V）收缩，晶格对称性降低。Seebeck系数的绝对值升高，热导率降低，电导率下降。当x=0．6时，Ba1-xSrxPbO3表现出高的品质因子Z，在673K时，Z的最大值达1．2×10^-4／K。
Powder samples of Ba1-xSrxPbO3 （0≤x≤1. 0） were synthesized by solid state reaction and their phase structures were investigated by X-ray diffraction analysis. Lattice parameters were calculated as a function of cherhical compositions. The thermoelectric properties of sintered pellets were measured at 300-673 K. The results show that the lattice lengths of the a, b and c axis gradually decrease with increase of Sr content, causing a shrinkage of cell volume and a reduction of crystal symmetry. The absolute value of the Seebeck coefficient increases with Sr content, while thermal conductivity and electrical conductivity decreases. The high values of figures of merit Z are obtained at x=0. 6, and the maximal value is 1.2×10 ^-4/K at 673 K.