摘要
采用溶胶-凝胶法制备锆钛酸钡钙粉体,通过常压烧结制备锆钛酸钡钙陶瓷(Ba_(0.85)Ca_(0.15)Ti_(0.90)Zr_(0.10)O_3),借助XRD、扫描电镜、阻抗分析仪、铁电综合测试仪等表征手段系统研究了烧结温度对其微结构、电性能以及储能特性的影响。结果表明:较高的烧结温度有利于获得致密性好、晶粒尺寸较大的锆钛酸钡钙陶瓷;相对于1330℃,1430℃下制备的锆钛酸钡钙陶瓷的剩余极化强度、相对介电常数均更高,而介电损耗更低,但烧结温度为1330℃时制备的锆钛酸钡钙陶瓷的储能密度以及储能效率均优于烧结温度为1430℃时制备的样品。
Barium calcium zirconium titanate powders were prepared by sol-gel method,and then barium calcium zirconate titanate ceramics were fabricated by conventional sintering method.The effects of sintering temperature on the microstructure,electrical properties and energy storage properties of Ba0.85Ca0.15Ti0.90Zr0.10O3 were studied systematically by X-ray diffraction,scanning electron microscope,impedance analyzer and ferroelectric test system.The results show that the relatively higher sintering temperature is benefit for obtaining barium calcium zirconate titanate ceramics with higher densification and larger grain size.Compared with the ceramic sample sintered at 1330℃,barium calcium zirconate titanate ceramics sintered at 1430℃have higher remnant polarization,relative permittivity and lower dielectric loss.However,the energy storage density and energy storage efficiency of barium calcium zirconate titanate ceramics sintered at 1330℃are superior to those of the sample sintered at 1430℃.
作者
张钱伟
蔡苇
何海峰
王凤起
李清婷
ZHANG Qianwei;CAI Wei;HE Haifeng;WANG Fengqi;LI Qingting(School of Metallurgy and Materials Engineering,Chongqing University of Science and Technology,Chongqing 401331,China;Chongqing Key Laboratory of Nano/Micro Composite Materials and Devices,Chongqing 401331,China)
出处
《电子元件与材料》
CAS
CSCD
北大核心
2019年第2期15-21,共7页
Electronic Components And Materials
基金
重庆市高校优秀人才支持计划(2017-35)
重庆高校创新团队建设计划资助项目(CXTDX201601032)
重庆科技学院研究生科技创新计划项目(YKJCX1720204)
关键词
烧结温度
锆钛酸钡钙
电性能
储能密度
sintering temperature
barium calcium zirconium titanate
electrical properties
energy storage density
