材料科学

Vol.1 No.1 (April 2011)

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

 

关键词:

准同型相界铌酸钾钠压电温度稳定性MPB K0.5Na0.5NbO3 Piezoelectric Temperature Stability

 

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。

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 (2011) 0.9K1-xNaxNbO3- 0.06LiNbO3-0.04SrTiO3 陶瓷压电性能温度稳定性研究。 材料科学, 1, 17-21. doi: 10.12677/ms.2011.11004

 

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