Microstructure and electrical properties of MnO2-doped ZnO-Pr6O11-based varistor ceramics

摘要：

　　The effect of 0~1mol% MnO2 doping on microstructure and electrical properties of the Zn-Pr-Co-Cr-Mn-based varistor ceramics was investigated by means of SEM,XRD and standard current-voltage property tests.The increase of MnO2 doping level strongly decreased the relative density (99%-91.5%) by the effect of pining of Pr0.96Mn0.982O3.The nonlinear coefficient increased from 17.4 for MnO2-undoped sample to 54 for MnO2-doped sample up to 0.5 mol%,whereas the further doping resulted in decrease.

关键词： MnO2 ZnO Pr6O11 varistor ceramics nonlinear coefficient

作者: Xiao xing Han Si chao Huang Ying Liang Yu Shi

作者单位: School of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology, B School of Rare-earth, Inner Mongolia University of Science and Technology, Bao Tou, Inner Mongolia, School of Materials& Metallurgy Science and Engineering, Inner Mongolia University of Science and Te

会议类型: 国际会议

会议名称: 2013 International Conference on Intelligent System,Applied Materials and Control Technology(GSAMCT2013)(2013年智能系统、应用材料和控制技术国际会议)

会议地点: 太原

会议语种:英文

页码: 116-120

在线出版日期: 2013-01-13（万方平台首次上网日期，不代表论文的发表时间）