电子元件与材料2017，Vol.36Issue(1)：14-20,7.DOI:10.14106/j.cnki.1001-2028.2017.01.003
B位Ta/Zr共掺对无铅BNKT-ST-TaxZry陶瓷的储能特性和电性能的影响
Effect of Ta/Zr B-site co-dopingon energy-storage and electrical properties of BNKT-ST-TaxZrybased lead-free ceramics
摘要
Abstract
0.96[Bi1/2(Na0.84K0.16)1/2(Ti1–x–yTaxZry)O3]-0.04SrTiO3(labelledas BNKT-ST-TaxZry) (x=0-0.025,y=0-0.20) lead-free ceramics weresynthesizedbythe conventional solid state reaction method.Effect ofTa/Zr B-siteco-doping was studiedon the microstructure, electrical properties and energy density of lead-free BNKT-ST-TaxZryternary system ceramics. The results indicate that, with the increaseofconcentration ofTa and Zrions, the piezoelectric constantd33of ceramic decreases, and the ceramic shiftstoward toincipientpiezoelectrics. As theTa and Zr doping level increases,the saturationpolarization, remanent polarization and coercive field decrease,and the relaxation properties increase.Withthe increasingofTa and Zrdopingconcentration, theenergy storage densityof the ceramicincreasesandreachesamaximum value of1.005J/cm3(x=0.01,y=0.05), and then decreaseswith further increasingxandy.The energy storage efficiency (η) increasesmonotonically withconcentration ofxandy.关键词
Ta/Zr共掺/0.96Bi1/2(Na0.84K0.16)1/2(Ti1-x-yTaxZry)O3-0.04SrTiO3/电性能/储能密度/储能效率/弛豫特性Key words
Ta/Zrco-doping/0.96[Bi1/2(Na0.84K0.16)1/2(Ti1-x-yTaxZry)O3]-0.04SrTiO3/electricalproperties/energy storagedensity/energy storage efficiency/relaxation behavior分类
信息技术与安全科学引用本文复制引用
洪雅萍,黎清宁,曾卫东,童凯,周昌荣..B位Ta/Zr共掺对无铅BNKT-ST-TaxZry陶瓷的储能特性和电性能的影响[J].电子元件与材料,2017,36(1):14-20,7.基金项目
国家自然科学基金资助(No.61561015)；广西自然科学基金资助(No.2015GXNSFAA139250) （No.61561015）
