摘要
分别采用化学共沉淀法和水热法制备铁电四方相和顺电立方相ＢａＴｉＯ３粉体，然后将它们按一定比例混合，在低氧压条件下烧结成ＢａＴｉＯ３陶瓷。较详细地研究了这种ＰＴＣ效应很低的ＢａＴｉＯ３陶瓷的Ｒ－Ｔ特性、Ｉ－Ｖ特性与制备工艺的关系。
BaTiO 3 ceramic powders with ferroelectric tetragonal phases and paraelectric cubic phases have been synthesized respectively by co precipitation and hydrothermal methods. The powder are mixed in a certain proportion and sintered under a low oxygen pressure. A BaTiO 3 ceramics with very low PTC effect is obtained, its relations of R T and I V properties with the preparing process have been investigated in detail, and the conductive mechanism is discussed.
出处
《压电与声光》
CSCD
北大核心
1996年第5期340-345,共6页
Piezoelectrics & Acoustooptics
关键词
陶瓷
PTC
铁电相
顺电相
BaTiO 3 ceramics, PTC effect, ferroelectric phase, paraelectric phase
