Composition dependence of dielectric properties in Pb(Zn_(1/3)Nb_(2/3))O_(3)–PbTiO_(3)–BaTiO_(3)(PZN–PT–BT)relaxor ferroelectric ceramics  

作　　者：Qiang Gao Li Jin Yu Cui Ye Zhao Kun Yu Xiang Shi Xiaoyong Wei 

机构地区：[1]Electronic Materials Research Laboratory Key Laboratory of the Ministry of Education&International Center for Dielectric Research Xi'an Jiaotong University,Xi'an 710049,P.R.China

出　　处：《Journal of Advanced Dielectrics》2017年第2期7-12,共6页先进电介质学报（英文）

基　　金：Natural Science Basis Research Plan in Shaanxi Province of China (Grant No.2015JM5199);Fundamental Research Funds for the Central Universities, the National Basic Research Program of China (973 Program) (Grant No. 2015CB654602);International Science and Technology Cooperation Program of China (Grant Nos. 2013DFR50470 and 2015DFA51100),the 111 Project under Grant No. B14040.

摘　　要：Perovskite solid solution ceramics of PZN–PT–BT with several compositions were synthesized by solid-state reaction method.X-ray diffraction results indicate pure perovskite structures for all samples.Dielectric measurements show that the implicit Ba(Zn_(1/3)Nb_(2/3))O_(3)(BZN)composition could broaden the diffusion phase transition(DPT)peaks and lower the ε_(max) and T_(max) values.The observed dielectric properties may be caused by the increased cation disorder due to the substitution of barium onto the A-site and titanium onto the B-site.

关 键 词：Relaxor ferroelectrics dielectric properties diffusion phase transition cation disorder 

分 类 号：TQ1[化学工程]