Modification of physical properties of Ba(Ni_(1/3)Nb_(2/3))O_(3) ceramics through ordered domain engineering
作者机构：Laboratory of Dielectric MaterialsSchool of Materials Science and EngineeringZhejiang University38 Zheda RoadHangzhou310027China
出 版 物：《Journal of Materiomics》 (无机材料学学报（英文）)
年 卷 期：2022年第8卷第4期
页 面：815-822页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
主 题：Complex perovskite Ordered domain engineering Electrical resistivity Thermal conductivity Dielectric strength
摘 要：Ordered domain engineering has been further developed for modifying and improving physical prop-erties in complex perovskite ceramics. In the present work, Ba(Ni_(1/3)Nb_(2/3))O_(3) ceramic is taken as a typicalexample for ordered domain engineering, in which the sintering temperature lies above the order-disorder transition temperature. Though the well-ordered structure could not be obtained in as-sintered samples, high ordering degree could be achieved together with preferred ordered domainstructures in Ba(Ni_(1/3)Nb_(2/3))O_(3) ceramics through long-time annealing, and subsequently the physicalproperties such as electrical resistivity, thermal conductivity, dielectric strength and energy storagedensity are significantly enhanced, where the ordering degree, ordered domain structure and ordereddomain boundary play the critical rules. The present work provides an effective approach for developingcomplex perovskite dielectric ceramics with superior physical properties.
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