SrTiO_3-Bi_2O_3·3TiO_2-Pb7iO_3系统铁电陶瓷低频介电性  

DIELECTRIC PROPERTIES OF FERROELECTRIC CERAMICS IN THE SYSTEM SBT-PT AT LOW FREQUENCIES

作　　者：郑家范 王毅[1] 刘爱林 

机构地区：[1]西北轻工业学院硅工系,咸阳7120281

出　　处：《陕西科技大学学报（自然科学版）》1992年第3期127-132,共6页Journal of Shaanxi University of Science & Technology

摘　　要：SBT-PT系统中,较宽范围内存在高介电系数组成点。固定BT_3含量(5mol%～15mol%),ε与tgδ随PT引入量提高而增大。当PT引入量为20mol%～30mol%时,介电系数最高。在SBT中引入PT不会影响BT_3在ST中的极限固熔量。In the system SBT-PT,the high dielectric constant batches is existential in wider range.For a constent amount BT_3(5mol%～15mol%)ε and tgδ increase as the amount of PT rised.ε has maximum value as 20mol%～30mol% PT.Lead has not influence on the limited value of bismuth solid solution in the strontium titanate when it is added into the system Sr-Bi-Ti.

关 键 词：介电系数 固熔体 

分 类 号：TM534.1[电气工程—电器] TQ174.5[化学工程—陶瓷工业]