微波烧结氧化锌压敏陶瓷的研究进展  

Research Progress of Microwave-sintered Zinc Oxide Varistors

作　　者：徐东[1] 施利毅[1] 吴振红[2] 方建慧[2] 

机构地区：[1]上海大学材料科学与工程学院,上海200072 [2]上海大学纳米科学与技术研究中心,上海200444

出　　处：《电瓷避雷器》2007年第5期25-30,共6页Insulators and Surge Arresters

基　　金：上海市科委创新团队发展计划资助项目(06DZ05902).

摘　　要：综述了近年来微波烧结在氧化锌压敏陶瓷中的研究进展:可提高氧化锌压敏陶瓷加热速率,降低烧结温度,改善材料的显微结构及性能,提高瓷体密度,达到高效节能的目的。但压敏电阻组分较多,微波快速烧结时,组分通过扩散和迁移在微观上均匀分布较难,可能对电性能有一定影响。结合目前国内外微波烧结氧化锌压敏陶瓷的发展现状,指出今后在压敏陶瓷微波烧结中可以采用纳米技术。The research progress of Microwave-sintered Zinc oxide varistors was reviewed. The microwave sintering process is characterized by high efficiency and energy saving, it can enhance the densification behavior, improve the heating rate, lower down the sintering temperature and thus economize energy comsumption, improves the microstructure and properties of the ceramics. However, zinc oxide-based varistors are of multiphase ceramic devices, if the heating rate is very high （microwave rapid sintering） , it is difficult for the components to distribute uniformly in the micro level by diffusion and migration, and may have a certain impact on the electrical properties. According to the development situation of the microwave sintered zinc oxide varistors ceramics at home and abroad, it puts forward that the nanotechnology can be used in the microwave sintered zinc oxide varistors in the future.

关 键 词：压敏电阻 电子陶瓷 氧化锌 微波烧结 

分 类 号：TM28[一般工业技术—材料科学与工程]