摘要
在1 280℃下,采用传统固相反应法制备出Pb(Sn_(0.5)Nb_(0.5))O_3-Pb(Ni_1/_3Nb_2/_3)O_3-Pb[Zr_xTi(_(1-x))]O_3(PSN-PNN-PZT,质量分数x=0.42,0.43,0.44,0.45)压电陶瓷。研究了不同的x对PSN-PNN-PZT压电陶瓷的相结构、显微组织形貌及电学性能的影响。结果表明,当x=0.43时,样品为单一的钙钛矿结构,存在准同型相界,并且晶粒饱满,晶界清晰,颗粒大小均匀,综合电学性能达到最优,压电常数d_(33)=625pC/N,介电常数ε_r=3 005,介电损耗tanδ=1.75%,电容C_p=1 280nF。
In this paper,Pb（Sn0.5Nb0.5）O3-Pb（Ni1/3Nb2/3）O3-Pb[ZrxTi（1-x）]O3（PSN-PNN-PZT,x=0.42,0.43,0.44,0.45）piezoelectric ceramics were prepared by the conventional solid phase reaction method.The effects of different content of xon the phase structure,microstructure morphology,and the electrical properties of PSN-PNN-PZT piezoelectric ceramics are investigated.The results show that when x=0.43,the sample is single perovskite structure and possesses a quasi phase boundary,the grain is full,the interface of crystal grains is clear and the particle size is uniform.The ceramic exhibits the optimum properties with the piezoelectric constant of d（33）=625pC/N,dielectric constant ofεr=3 005,dielectric constant of tanδ=1.75%,capacitance of Cp=1 280nF.
出处
《压电与声光》
CSCD
北大核心
2017年第6期928-930,共3页
Piezoelectrics & Acoustooptics
基金
贵州省科技厅工业攻关基金资助项目(黔科合GY字[2013]3027)
关键词
压电陶瓷
固相反应
电学性能
显微形貌
相结构
piezoelectric ceramics
solid phase reaction
electrical properties
microstructure morphology
phase structure
