线性高频电容器瓷料的研究  

STUDY ON CERAMIC MATERIAL FOR HIGH FREQUENCY LINEAR CAPACITORS

作　　者：白花珍 张之圣 胡明 

出　　处：《天津大学学报》1997年第5期580-584,共5页Journal of Tianjin University(Science and Technology)

基　　金：天津市自然科学基金

摘　　要：研制一种以ＳｒＴｉＯ３－Ｂｉ２Ｏ３·ｎＴｉＯ２－ＣａＴｉＯ３为主晶相的Ｖ组线性电容器瓷料．以三、五族氧化物为改性剂，使容量温度特性线性化；加ＰｂＴｉＯ３，使介电常数提高．其介电常数ε＞３１０，电容温度系数αｃ＝（－１５００±２５０）×１０－６／℃，其余各项电气、物理、机械性能均符合国际ＧＢ５５９６－８５．This paper studies a ceramic material of group for linear capacitors. Its main crystalline phase is based on SrTiO 3 BiO 2O 3· n TiO 2 CaTiO 3 with Ⅲ Ⅴ oxide in small quantity as modifier. Its characteristic of capacity temperature is linear. The dielectric constant ε raised to >310 because of charging up PbTiO 3 . The temperature coefficient of capacitor equals (-1 500±250)×10 -6 /℃. All other electrical, physical and mechanical properties meet the criterion of national standard GB5596 85.

关 键 词：介质材料 介质损耗 介电常数 电容器 电子陶瓷 

分 类 号：TQ174.756[化学工程—陶瓷工业]