典型文献
Pyrochlore-based high-entropy ceramics for capacitive energy storage
文献摘要：
High-performance dielectrics are widely used in high-power systems,electric vehicles,and aerospace,as key materials for capacitor devices.Such application scenarios under these extreme conditions require ultra-high stability and reliability of the dielectrics.Herein,a novel pyrochlore component with high-entropy design of Bi1.5Zn0.75Mg0.25Nb0.75Ta0.75O7(BZMNT)bulk endows an excellent energy storage performance of Wrec～2.72 J/cm3 together with an ultra-high energy efficiency of 91％at a significant enhanced electric field Eb of 650 kV/cm.Meanwhile,the temperature coefficient(TCC)of BZMNT(～-220 ppm/℃)is also found to be greatly improved compared with that of the pure Bi1.5ZnNb1.5O7(BZN)(～-300 ppm/℃),demonstrating its potential application in temperature-reliable conditions.The high-entropy design results in lattice distortion that contributes to the polarization,while the retardation effect results in a reduction of grain size to submicron scale which enhances the Eb.The high-entropy design provides a new strategy for improving the high energy storage performance of ceramic materials.
文献关键词：
中图分类号：
作者姓名：
Yiying CHEN;Junlei QI;Minhao ZHANG;Zixi LUO;Yuan-Hua LIN
作者机构：
State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing 100084,China
文献出处：
引用格式：
[1]Yiying CHEN;Junlei QI;Minhao ZHANG;Zixi LUO;Yuan-Hua LIN-.Pyrochlore-based high-entropy ceramics for capacitive energy storage)[J].先进陶瓷（英文版）,2022(07):1179-1185
A类：
Pyrochlore,75Mg0,75O7,BZMNT,5ZnNb1,5O7
B类：
high,entropy,ceramics,capacitive,energy,storage,High,performance,dielectrics,widely,used,power,systems,vehicles,aerospace,key,materials,capacitor,devices,Such,application,scenarios,under,these,extreme,conditions,require,ultra,stability,reliability,Herein,novel,pyrochlore,component,design,Bi1,5Zn0,25Nb0,75Ta0,bulk,endows,excellent,Wrec,cm3,together,efficiency,significant,enhanced,field,Eb,kV,Meanwhile,temperature,coefficient,TCC,ppm,also,found,be,greatly,improved,compared,that,pure,BZN,demonstrating,its,potential,reliable,results,lattice,distortion,contributes,polarization,retardation,effect,reduction,grain,size,submicron,scale,which,enhances,provides,new,strategy,improving
AB值：
0.578456
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
