摘要
钙掺杂对BaTiO_3PTCR陶瓷的微观结构和电性能具有显著的影响。钙掺杂有助于晶粒的均匀生长。少量钙掺杂对材料阻值及电性能影响不大。当钙掺杂达到一定量时,材料的晶粒迅速减小,其电阻温度系数达到最大,室温电阻值增大。
Calcium inclusions have significant influence on the microstructure and electrical property of Ba-TiO3 PTCR ceramics.Ti is helpful to the steady growth of the grains. A small amount of calcium inclusions has little influence on the resistance value and electrical property of the ceramics. The grain size will decrease, the resistance temperature will be maximum value and the resistance value at room temperature will increase while calcium inclusions attain a given quantity.
出处
《现代技术陶瓷》
CAS
2000年第3期3-6,共4页
Advanced Ceramics
