Energy storage properties of surface-modified BaTiO_(3)ceramic films for multilayer capacitors applications  

作　　者：Hongxian Wang Chunyan Zeng Baibo Liu Xiaohui Wang 

机构地区：[1]State Key Laboratory of New Ceramic and Fine Processing School of Materials Science and Engineering Tsinghua University,Beijing 100084,P.R.China [2]China Building Material Test&Certification Group Co.Ltd,China Building Materials Academy,Beijing 100024,P.R.China

出　　处：《Journal of Advanced Dielectrics》2019年第3期55-59,共5页先进电介质学报（英文）

基　　金：The work was supported by Ministry of Sciences and Tech-nology of China through National Basic Research Program of China(973 Program 2015CB654604);National Natural Science Foundation of China for Creative Research Groups(Grant No.51221291);National Natural Science Foundation of China(Grant No.51272123);CBMI Construction Co.,Ltd.

摘　　要：Surface-modified BaTiO_(3)of 230 nm average grain size were synthesized by coating BaTiO_(3)particles with 3 wt.%Al2O_(3)and 1 wt.%SiO2.Ceramic films of different thicknesses were prepared via tape casting and laminating processes followed by two-steps sintering method.After sintering,the average grain size of Surface-modified BaTiO_(3)ceramic slightly increased to 275 nm,and great enhancement of AC breakdown strength(BDS)from 184 kV/cm to 665 kV/cm was obtained as the thickness of ceramic films decreased from 63μm to 12μm,resulting in improvement of discharge energy density from 1.14 J/cm3to 4.06 J/cm3.Because of their low-cost,easily fabrication,lead-free,improved AC BDS and discharge energy density,surface-modified BaTiO_(3)ceramic films appeared promising for applications in multilayer energy storage capacitors.

关 键 词：Ceramic films multilayer ceramic capacitors FERROELECTRICS energy storage 

分 类 号：TQ1[化学工程]