摘要
用传统固相法制备了PbZrO3-PbTiO3-Pb(Fe2/3W1/3)O3-Pb(Mn1/3Nb2/3)O3(简称PZT-PFW-PMN)四元系压电陶瓷。研究了不同含量的Pb(Fe2/3W1/3)O3(简称PFW)对PZT-PFW-PMN陶瓷的相结构、密度、介电性能和压电性能的影响。另外,还研究了制备工艺对陶瓷电性能的影响。结果表明,随着PFW的加入以及烧结温度的提高,体系的介电和压电性能都有所改善。当加入3.0%(摩尔分数)Pb(Fe2/3W1/3)O3并在1200℃下烧结时,材料具有良好的综合电性能:d33=358pC/N,Kp=0.63,Qm=1655,tgδ=0.005,该组份是大功率压电陶瓷变压器用材料优良的备选体系。
PbZrO3-PbTiO3-Pb（Fe2/3W1/3）O3-Pb（Mn1/3Nb2/3）O3 quaternary ceramics with various contents of Pb （Fe2/3 W1/3）O3 were prepared by traditional method. The effects of composition and processing parameters on the phase structure, density, dielectric and piezoelectric properties were investigated. The results revealed that increase of the content of Pb（Fe2/3W1/3）O3 solid solution and the sintering temperature enhance the dielectric and piezoelectric properties. The optimized sample was obtained at 3.0mol%Pb（Fe1/3W2/3）O3 sintered at 1200℃ and its properties were： d33=358pc/N, Kp=0.63, Qm=1655 and tgδ=0. 005, which make this system be a good candidate for high power piezoelectric transformers.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2006年第3期383-385,388,共4页
Journal of Functional Materials
基金
国家自然科学基金资助项目(10374064)
陕西师范大学校级重点科研资助项目(2004)
