(Bi_(0.46)Na_(0.46)Ba_(0.06)La_(0.02))Zr_xTi_((1-x))O_3反铁电陶瓷介电性能及储能性能的研究  

Research on Dielectric and Energy-Storage Properties of Anti-ferroelectric Ceramics(Bi_)0.46)Na_(0.46)Ba_(0.06)La_(0.02))Zr_xTi_((1-x))O_3

作　　者：王永锋[1,2] 吕振林[2] 

机构地区：[1]西安航空学院机械学院,陕西西安710077 [2]西安理工大学材料科学与工程学院,陕西西安710048

出　　处：《铸造技术》2014年第7期1420-1423,共4页Foundry Technology

摘　　要：采用传统固相反应法制备无铅反铁电陶瓷材料(Bi0.46Na0.46Ba0.06La0.02)ZrxTi(1-x)O3(x=0,0.02,0.04,0.06),研究了材料的相结构、介电及储能性能。结果表明,随着Zr含量增加,晶粒尺寸逐渐减少,介电常数逐渐减少,储能密度先增加后减少。少量的Zr掺杂(x=0.02)可以大幅度提高陶瓷的储能密度。在60kV/cm的电场下,其储能密度由x=0的0.43 J/cm3提高到x=0.02的0.77 J/cm3,提高了近80%。The lead-free anti-ferroelectric ceramics（Bi0.46Na0.46Ba0.06La0.02）ZrxTi（1-x）O3（x=0, 0.02, 0.04, 0.06） were fabricated by the conventional solid state reaction method, and the phase structures, dielectric and energy-storage properties of the ceramics were investigated. The results show that both the grain size and the dielectric constant decrease with the increase of Zr contents, but the energy density increases first and then decreases. A small number of doping Zr can enhances the energy-storage density greatly. The energy-storage density nearly increases by 80% from 0.43 to 0.77 J/cm3with x from 0to 0.02 under the electric field of 60 kV/cm.

关 键 词：无铅反铁电陶瓷 能量储存性能 电滞回线 

分 类 号：TQ174.1[化学工程—陶瓷工业]