摘要
研究了Na0.5Bi0.5TiO3和(Na0.5Bi0.5)0.94Ba0.06TiO3陶瓷的电滞回线、压电性能和热滞现象·得到(Na0.5Bi0.5)0.94 Ba0.06TiO3陶瓷的剩余极化Pr=19uC/cm2、矫顽场Ec=4.7kV/mm.发现用适量的Ba2+取代(Na0.5Bi0.5)2+尽管压电性能有所提高,但同时使得材料的温度稳定性大大降低.
D - E hysteresis, piezoelectric properties and temperature hysteresis phenomena of (Na0.5Bi0.5)TiO3 and (Na0.5Bi0.5)(0.94)Ba0.06TiO3 ceramics were investigated. Remnant polarization (P-r=19muC/cm(2)) and coercive field (E-c =4.7kV/mm) of (Na0.5Bi0.5)(0.94)Ba0.06TiO3 ceramic were obtained in the experiment. Although the substitution of Ba2+ for (Na0.5Bi0.5)(2+) can improve the piezoelectric properties, it can also induce the deterioration of temperature stability.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第1期61-65,共5页
Journal of Inorganic Materials
基金
国家重点基础研究发展规划项目(G1998061408)