文献类型：期刊文章

作　　者：徐东[1,2,3] 唐冬梅[1,4] 焦雷[1] 袁宏明[5] 赵国平[1] 程晓农[1,4]

机构地区：[1]江苏大学材料科学与工程学院,镇江212013 [2]中国科学院半导体研究所,半导体材料科学重点实验室,北京100083 [3]西安交通大学电力设备与电气绝缘国家重点实验室,西安710049 [4]常州江苏大学工程技术研究院,常州213000 [5]吉林大学化学学院,无机合成与制备化学国家重点实验室,长春130012

出　　处：《Transactions of Nonferrous Metals Society of China》

基　　金：Project (BK2011243) supported by the Natural Science Foundation of Jiangsu Province,China;Project (EIPE11204) supported by the State Key Laboratory of Electrical Insulation and Power Equipment,China;Project (KF201104) supported by the State Key Laboratory of New Ceramic and Fine Processing,China;Project (KFJJ201105) supported by the Opening Project of State Key Laboratory of Electronic Thin Films and Integrated Devices,China;Project (2011-22) supported by State Key Laboratory of Inorganic Synthesis and Preparative Chemistry,China;Project (10KJD430002) supported by the Universities Natural Science Research Project of Jiangsu Province,China;Project (11JDG084) supported by the Research Foundation of Jiangsu University,China

年　　份：2012

卷　　号：22

期　　号：6

起止页码：1423-1431

语　　种：中文

收录情况：AJ、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2011_2012、EI、INSPEC、JST、SCI(收录号：WOS:000306275100024)、SCI-EXPANDED(收录号：WOS:000306275100024)、SCIE、SCOPUS、WOS、ZGKJHX、普通刊

摘　　要：ZnO varistor ceramics doped with Bi2O3, Sb2O3, CO2O3, Cr2O3, and MnO2 were prepared separately by two high-energy ball milling processes： oxide-doped and varistor ceramic powder. A comparison in the electrical and microstructural properties of the samples obtained by both methods was made. The best results on these characteristics were achieved through the high-energy ball milling varistor ceramic powder route, obtaining a nonlinear coefficient of 57 and a breakdown field of 617 V/mm at a sintering temperature of 1000 ℃ for 3 h. The samples synthesized by this technique show not only high density value, 95% of the theoretical density, but also a homogeneous microstructure, which compete with those obtained by the high-energy ball milling oxide-doped powder route. With the advantage that the high-energy ball milling varistor ceramic powder route can refine grain, increase the driving force of sintering, accelerate the sintering process, and reduce the sintering temperature.

关 键 词：VARISTOR ZNO high-energy ball milling  electrical characteristic  MICROSTRUCTURE

分 类 号：TQ174.1]