Synthesis of Pr6O11 Doped Zinc Varistors by High-Energy Milling

摘要：

　　High voltage zinc varistors was synthesized by high energy milling with Pr6O11 doped ZnO-Bi2O3 system as raw materials.The effects of milling time and sintering temperature on the electrical properties were investigated.The results show that high-energy milling decreases the sintering temperature of the ZnO varistors.The material derived from high-energy milling exhibit high density and good electrical properties at the sintering temperature from 1080 to 1180℃.The samples sintered at 1100 ℃ have average crystalline grain size of about 5 μm with the optimum values of electrical properties,gradient voltage V1mA is 371 V/mm,leakage current IL is 0.62 μA,non linear coefficient α is 60.

关键词： Varistors Pr6O11 High-energy Milling Electrical Property

作者: Guoquan Qi Jianfeng Zhu Haibo Mao Yang Wu Haibo Yang Fen Wang

作者单位: Shaanxi University of Science & Technology, Xian 710021, Peoples Republic of China

会议类型: 国际会议

会议名称: The Sixth China International Conference on High-Performance Ceramics(第六届中国先进陶瓷国际研讨会(CICC-6))

会议地点: 哈尔滨

会议语种:英文

页码: 314-316

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）