无机材料学报

• 研究论文 • 上一篇    下一篇

掺杂ZnO-V2O5压敏电阻的低温烧结

吴隽1; 谢长生1; 黄开金1; 王爱华1; 王文焱2   

  1. 1. 华中科技大学材料学院模具技术国家重点实验室, 武汉 430074; 河南科技大学材料科学与工程学院 武汉 471039
  • 收稿日期:2002-12-23 修回日期:2003-03-28 出版日期:2004-01-20 网络出版日期:2004-01-20

Low Temperature Sintering of Doped ZnO-V2O5 Varistors

WU Jun1; XIE Chang-Sheng1; HUANG Kai-Jin1; WANG Ai-Hua1; WANG Wen-Yan2   

  1. 1. The State Key Laboratory of Plastic Forming Simulation and Mould Technology; Department of Materials Science and Egineering; Huazhong University of Science and Technology; Wuhan 430074; China; 2. Department of Materials Science & Engineering; Henan University of Science & Technology; Luoyang 471039; China
  • Received:2002-12-23 Revised:2003-03-28 Published:2004-01-20 Online:2004-01-20

摘要: 对掺杂ZnO-V2O5压敏电阻的低温烧结特性及电性能进行了研究.研究结果表明:通过添加硼酸铅锌玻璃“形成”氧化物PbO和B2O3使其在常规电烧结炉中的烧结温度降低到了800℃,并使非线性特性明显提高,添加6wt%(PbO+B2O3)的样品经800℃ 4h烧结后,其非线性系数和漏电流密度可分别达到22.5,7.2×10-6A/cm2.

关键词: 压敏电阻, 硼酸铅锌玻璃, 低温烧

Abstract: The low-temperature sintering characteristics and electrical properties of ZnO-V2O5 varistors
were studied through adding oxides with low melting point, which were the lead zinc borate glass frit forming materials. The results show
that the sintering temperature is significantly decreased to 800℃ with conventional electric furnace sintering and the nonlinear
properties are obviously enhanced through adding B2O3 and PbO. When the sample with co-doped 6wt% (PbO+B2O3) sintered at 800℃ for 4h, its
leakage current density JL=7.2×10-6A/cm2 and nonlinear coefficient α=22.5.

Key words: varistor, lead zinc borate glass, low-temperature sintering

中图分类号: