Enhanced breakdown strength and energy storage density of AgNbO_(3)ceramics via tape casting  

作　　者：Ming-Yuan Zhao Jing Wang Lin Chen Hao Yuan Mao-Hua Zhang Su-Wei Zhang Lei Zhao 

机构地区：[1]Key Laboratory of High-Precision Computation and Application of Quantum Field Theory of Hebei Province,College of Physics Science and Technology,Hebei University,Baoding,071002,China [2]State Key Laboratory of Mechanics and Control of Mechanical Structures,College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing,210016,China [3]Department of Materials and Earth Sciences,Nonmetallic Inorganic Materials,Technical University of Darmstadt,Darmstadt,64287,Germany [4]State Key Laboratory of New Ceramics and Fine Processing,School of Materials Science and Engineering,Tsinghua University,Beijing,100084,China

出　　处：《Rare Metals》2023年第2期495-502,共8页稀有金属（英文版）

基　　金：financially supported by the National Natural Science Foundation of China(Nos.52073144,51802068);the Natural Science Foundation of Hebei Province,China(No.E2021201044);the Natural Science Foundation of Jiangsu Province,China(No.BK20201301);Qing Lan Project,the State Key Laboratory of New Ceramic and Fine Processing Tsinghua University(Nos.KF202005,KF202114);the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)。

摘　　要：Antiferroelectric materials are promising candidates for energy-storage applications due to their double hysteresis loops,which can deliver high power density.Among the antiferroelectric materials,AgNbO_(3)is proved attractive due to its environmental-friendliness and high potential for achieving excellent energy storage performance.However,the recoverable energy storage density of AgNbO_(3)ceramics is limited by their relatively low breakdown strength.Herein,the breakdown strength of the pure AgNbO_(3)ceramics prepared using the tape casting method is enhanced to 307 kV·cm^(-1),which is,to the best of our knowledge,among the highest values reported for pure AgNbO-3bulk ceramics.The high breakdown strength may be due to its dense microstructure and good crystallinity obtained by the tape casting method and the optimized sintering temperature.Owing to its enhanced breakdown strength,AgNbO_(3)ceramics show high recoverable energy storage density of 2.8 J·cm^(-3).These results have led to the development of lead-free antiferroelectric materials and devices with high energy storage density.

关 键 词：AgNbO_(3) Energy storage performance ANTIFERROELECTRIC Tape casting 

分 类 号：TQ174.1[化学工程—陶瓷工业] TM53[化学工程—硅酸盐工业]