Effects of doping and temperature on nonlinearity of WO3 varistor
文献类型：期刊论文
| 作者 | Y. Wang ; Z. Aburas ; K. L. Yao ; Z. L. Liu |
| 刊名 | Materials Chemistry and Physics
 |
| 出版日期 | 1999 |
| 卷号 | 58期号:1页码:51-54 |
| 关键词 | doping temperature tungsten trioxide varistor oxide |
| ISSN号 | 0254-0584 |
| 中文摘要 | In this paper, effects of some common additives, Bi2O3, Co2O3 and A(12)O(3), and temperature on nonlinearity of WO3-Na2CO3-MnO2 varistor have been studied. It is found that Bi2O3 is not helpful to improve nonlinearity of doped WO3. Doping of Co2O3 can improve nonlinearity, with alpha about 6 and breakdown field about 5 V/mm when the amount of Co2O3 is 1 mol%. For WO3-based system doped with 0.5 mol% Al2O3, the nonlinearity is improved significantly at 200 degrees C, and it is an ohmic resister at room temperature. The crystalline phases and microstructure of specimens are examined by the XRD and SEM microanalysis. It is assumed that the nonlinearsity of doped WO3 ceramics is determined by both grain boundary and WO3 grain. (C) 1999 Elsevier Science S.A. All rights reserved. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/37524]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. Wang,Z. Aburas,K. L. Yao,et al. Effects of doping and temperature on nonlinearity of WO3 varistor[J]. Materials Chemistry and Physics,1999,58(1):51-54. |
| APA | Y. Wang,Z. Aburas,K. L. Yao,&Z. L. Liu.(1999).Effects of doping and temperature on nonlinearity of WO3 varistor.Materials Chemistry and Physics,58(1),51-54. |
| MLA | Y. Wang,et al."Effects of doping and temperature on nonlinearity of WO3 varistor".Materials Chemistry and Physics 58.1(1999):51-54. |
入库方式： OAI收割
来源：金属研究所
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