文献类型：期刊文献

中文题名：锂掺杂锆钛酸钡钙陶瓷的制备与表征

英文题名：Synthesis and characterizations of Li-doped (Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 piezoelectric ceramics

作者：陈小明 周旺 熊俊华 唐云松 杨冬 刘万丽 蔺锡柱 罗咏梅 李国荣

第一作者：陈小明

机构：[1]贵州理工学院贵州省轻金属材料制备技术重点实验室,贵阳550003;[2]贵州理工学院材料与冶金工程学院,贵阳550003;[3]中国科学院上海硅酸盐研究所,上海200050

第一机构：贵州理工学院

年份：2019

卷号：50

期号：10

起止页码：10023-10026

中文期刊名：功能材料

外文期刊名：Journal of Functional Materials

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

基金：贵州省教育厅自然科学成长资助项目(黔教合KY字[2018]253);贵州理工学院大学生创新创业训练计划资助项目(201814440104)

语种：中文

中文关键词：(Ba0.85Ca0.15)(Ti0.9Zr0.1)O3;无铅压电陶瓷;制备;电学性能

外文关键词：(Ba0.85Ca0.15)(Ti0.9Zr0.1)O3;lead-free piezoelectric ceramics;preparation;electric properties

摘要：采用传统固相法制备了无铅压电陶瓷(Ba0.85Ca0.15)(Ti0.9Zr0.1)O3+x%(质量分数)Li2CO3(x=0.1,0.3,0.5,0.7,1.0,简写BCTZL-x),通过X射线衍射(XRD),扫描电镜(SEM)等表征手段,研究锂对该陶瓷体系的微结构和电学性能的影响。X射线衍射分析表明,烧结于1400℃/2h下的BCTZL-x陶瓷具有典型ABO3型钙钛矿结构。当增加Li的量,陶瓷经历从正交(O)向四方(T)晶相结构转变。当x≥0.3时,掺锂陶瓷结构变得更为致密。BCTZL-0.3体系陶瓷具有较好的电学性能,d33=456pC/N,kp=0.49,εr=4864,tanδ=0.018,Qm=130。
Li-doped (Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 (BCTZL-x) lead-free piezoceramics have been prepared by the conventional ceramic process.The influence of a Li +-containing additive on the crystal phase,microstructure and electric properties of (Ba0.85Ca0.15)(Ti0.9Zr0.1)O3 ceramics were systematically investigated through all kinds of measurement,such as X-ray diffraction(XRD) and SEM.The X-ray results show that the BCTZL-x ceramics sintered at 1 400 ℃/2 h had pure ABO 3 perovskite structure.The BCTZL-x ceramics went through the phase transition from O phase to T phase with Li + doping increasing.The ceramics became dense when x ≥0.3.Additionally,BCTZL-0.3 ceramics showed an excellent performance:d33 =456 pC/N,kp=0.49,ε r=4 864,tanδ= 0.018,Q m=130.