Glass modified barium strontium titanate ceramics for energy storage capacitor at elevated temperatures
作者机构：Energy Storage and Conversion Ceramic Materials Engineering Laboratory of Jiangxi ProvinceChina National Light Industry Key Laboratory of Functional Ceramic MaterialsSchool of Materials Science and EngineeringJingdezhen Ceramic InstituteJingdezhen333403China Key Laboratory of Optoelectronic Material and DeviceShanghai Normal UniversityShanghai200234China Chengdu Hongming UESTC Electronic New Materials Co.Ltd.Chengdu610100China
出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)
年 卷 期：2019年第5卷第4期
页 面：641-648页
核心收录：
学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学]
基 金：supported by National Natural Science Foundation of China(51767010) Science&Technology Key Research Project of Jiangxi Provincial Education Department(GJJ170760).
主 题：Barium strontium titanate Glass modification Energy storage Ceramic capacitor
摘 要：A glass with composition of B_(2)O_(3)-Bi_(2)O_(3)-SiO_(2)-CaO-BaO-Al_(2)O_(3)-ZrO_(2)(BBSZ)modified Ba_(x)Sr_(1-x)TiO_(3)(BST,x=0.3 and 0.4)ceramics were prepared by a conventional solid state reaction method abided by a formula of BST+y%BBSZ(y=0,2,4,7,and 10,in mass).The effect of BBSZ glass content on the structure,dielectric properties and energy storage characteristics of the ceramics was investigated.The dielectric constant reduced but the endurable electrical strength enhanced due to the BBSZ glass addition in BST ceramics.In particular,the dielectric loss of the ceramics at elevated temperature(e.g.200℃)can be strongly suppressed from tanδ20%to tanδ3% after BBSZ glass modification.For Ba_(0.3)Sr_(0.7)TiO_(3)+2%BBSZ ceramics,an optimized energy storage density(γ=0.63 J/cm^(3))and efficiency(η=91.6%)under an applied electric field of 160 kV/cm was obtained at room temperature.Meanwhile,the temperature dependent polarization-electric field(P-E)hysteresis loops were measured to evaluate the energy storage characteristics of the ceramics potential for high voltage capacitor application at elevated temperatures.
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