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研究了（Ｓｒ，Ｐｂ）ＴｉＯ３陶瓷的不同半导特性和微观结构的相互关系。研究表明，微观结构均匀，则半导性能不良，而微观结构不均匀，半导性能良好。通过ＸＲＤ、ＥＤＳ、ＥＰＡＭ等手段对两类试样进行相结构、晶体结构、化学成分等分析。结果表明，两者的相结构和晶体结构相同，大小晶粒的化学成分略有差别，但化学成分的差别不是导致材料半导性能变化的主要原因。作者认为，烧结过程中部分晶粒的异常生长形成大晶粒，大大减少了材料单位体积内的晶粒和晶界数量，降低了晶界电阻，也就大大降低了材料电阻，提高了材料的半导性。
The relationship between different semiconducting properties and microstructure of (Sr, Pb) TiO3 ceramics was investigated. Studies have shown that the microstructure is uniform, the semiconductor performance is poor, and the microstructure is not uniform, the semiconductor performance is good. By XRD, EDS, EPAM and other means of two types of samples for phase structure, crystal structure, chemical composition analysis. The results show that the phase structure and the crystal structure of the two are the same, and the chemical composition of the grain size is slightly different. However, the difference of the chemical composition is not the main reason for the change of the semiconducting property of the material. The authors believe that the abnormal growth of some of the grains in the sintering process forms large grains, which greatly reduces the number of grain and grain boundaries per unit volume of the material and reduces the grain boundary resistance, thus greatly reducing the material resistance and improving the material’s Semi-conductive.