标题:
0.9K1-xNaxNbO3- 0.06LiNbO3-0.04SrTiO3 陶瓷压电性能温度稳定性研究The Study of Piezoelectric Temperature Stability of 0.9K1-xNaxNbO3- 0.06LiNbO3-0.04SrTiO3Ceramics
作者:
赵静波, 杜红亮, 屈绍波, 张红梅, 徐卓
关键字:
准同型相界, 铌酸钾钠, 压电, 温度稳定性MPB; K0.5Na0.5NbO3; Piezoelectric; Temperature Stability
期刊名称:
《Material Sciences》, Vol.1 No.1, 2011-04-15
摘要:
铌酸钾钠基陶瓷中，通过对钾钠比率的精确控制，找到了类似锆钛酸铅的准同型相界，同时为了能够提高压电性能的温度稳定性，引入钛酸锶和铌酸锂，制备出了具有优异压电温度稳定性的铌酸钾钠基陶瓷0.9K0.46Na0.54NO3- 0.06LiNbO3-0.04SrTiO3, 在宽阔的温度范围25-250°C，压电系数d33=138-142pC/N，压电系数变化率TPP%
In K0.5Na0.5NbO3 based ceramics, morphotropic phase boundary(MPB) can be found via adjusting the K: Na ratio. At the same time, SrTiO3 and LiNbO3 were introduced to improve the temperature stability of K0.5Na0.5NbO3 based ceramics. 0.9K0.46Na0.54-0.06LiNbO3-0.04SrTiO3 ceramics was prepared and the piezoelectric temperature stability can be remarkably improved. Piezoelectric coefficient d33=138-142pC/N in the range 25-250°C，and the piezoelectric coefficient stability TPP%0.46Na0.54NO3- 0.06LiNbO3-0.04SrTiO3 ceramics possesses good piezoelectric temperature stability and it is of importance in engineering application.