摘要
本文利用相变扩张理论分析了粒界缓冲型展宽效应对BaTiO_3系PTC陶瓷的介电系数及温度系数a_r的影响,指出了晶粒尺寸和温度系数的关系。
In this paper, the influence of grain boundry buffering's broading effect on PTC ceramic's dielectric coefficient and temperature coefficient ar was studied in the aid of the theory of phase transformation expansion. Temperature coefficient dependence of grain size has been reported.
出处
《现代技术陶瓷》
CAS
1994年第4期8-11,共4页
Advanced Ceramics
关键词
晶粒
尺寸
相变扩张
温度系数
电子陶瓷
Phase transformation expansion Grain boundry buffering PTC Grain size Temperature coefficient
