0-3型压电陶瓷/硫铝酸盐水泥复合材料的介电性及压电性  

DIELECTRIC AND PIEZOELECTRIC BEHAVIORS OF 0-3 PIEZOELECTRIC CERAMIC/SULPHOALUMINATE CEMENT COMPOSITES

作　　者：黄世峰[1] 常钧[1] 芦令超[1] 刘福田[1] 王守德[1] 程新[1] 

机构地区：[1]济南大学材料学院,济南250022

出　　处：《复合材料学报》2005年第2期87-90,共4页Acta Materiae Compositae Sinica

基　　金：国家自然科学基金(50272024);山东省优秀中青年科学家科研奖励基金(03BS060)

摘　　要：以硫铝酸盐水泥为基体,铌镁锆钛酸铅(PMN)陶瓷颗粒为功能体制备了水泥基压电复合材料.重点讨论了复合材料的介电性能和压电性能.结果表明:水泥基压电复合材料的介电温谱在-30℃～150℃范围内较平坦,表现出优良的介电温度稳定性,而介电损耗随着温度的升高而增加;水泥基压电复合材料的压电应变常数和介电常数均随着PMN含量的增加而增大.0-3 cement based piezoelectric composites were fabricated by compressing technique using PMN and sulphoaluminate cement as raw materials. The piezoelectric and dielectric properties of the composites were investigated. The results indicate that the dielectric constants of the composites are almost constant over the temperature ranges between -30°C and 150°C, which exhibits good dielectric-temperature stability. But dielectric dissipation increases as temperature increases. With increasing PMN content, the piezoelectric and dielectric properties of the composites increase. The better performances of the composites are exhibited when PZT content exceeds 70%.

关 键 词：PMN 水泥基压电复合材料 压电常数 介电常数 介电温度稳定性 

分 类 号：TB332[一般工业技术—材料科学与工程] TU525[建筑科学—建筑技术科学]