中文摘要：

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。

英文摘要：

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.