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
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%<5%； 25-300°C，压电系数d33=114-142pC/N，压电系数变化率TPP%<20%；实验结果表明：这种陶瓷材料虽然压电系数不是很高，但是在宽阔的温度范围内具有优异的温度稳定性能，具有重要的工程应用价值。
Abstract: 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%<5%；d33=114-142pC/N，TPP%<20% in the range 25-300°C. The results show 0.9K0.46Na0.54NO3- 0.06LiNbO3-0.04SrTiO3 ceramics possesses good piezoelectric temperature stability and it is of importance in engineering application.
文章引用：赵静波, 杜红亮, 屈绍波, 张红梅, 徐卓. 0.9K1-xNaxNbO3- 0.06LiNbO3-0.04SrTiO3 陶瓷压电性能温度稳定性研究[J]. 材料科学, 2011, 1(1): 17-21. http://dx.doi.org/10.12677/ms.2011.11004

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