Influence of Cr2O3 on highly nonlinear properties and low leakage current of ZnO-Bi2O3 varistor ceramics
文献类型：期刊论文
| 作者 | Bai, Hairui1; Li, Shuhui1; Zhao, Yunhan1; Xu, Zhijun1; Chu, Ruiqing1; Hao, Jigong1; Chen, Chong1; Li, Huaiyong1; Gong, Yunyun1; Li, Guorong2 |
| 刊名 | CERAMICS INTERNATIONAL
 |
| 出版日期 | 2016-07-01 |
| 卷号 | 42期号:9页码:10547-10550 |
| 关键词 | ZnO-Bi2O3-based varistors High nonlinear coefficient Low leakage current |
| 英文摘要 | ZnO-Bi2O3-Sb2O3-Co2O3-MnO2-xCr(2)O(3) (ZBSCM-xCr(2)O(3), 0 <= x <= 0:6 mol%) varistors were fabricated through the conventional solid state method, and the effects of Cr2O3 on the microstructures and electrical properties were investigated. Results showed that the secondary phases CrBi18O30 and Co2Cr0.5Sb0.5O4 emerged when x ranges from 0.2 to 0.4. In these compositions, Cr2O3 acted as a donor and decreased the electrical properties of ZBSCM. For samples with x=0.5, the secondary phases transformed to MnCr2O4 and the electrical properties increased significantly: the nonlinear coefficient alpha sharply increased up to 80.71 and the barrier height phi(b) reached 3.88 eV. This indicates that the donor effect of Cr2O3 disappeared. In addition, with the increase of Cr2O3, the average grain size of ZnO decreased from 7.48 mu m to 5.46 mu m, which in turn resulted in an increase of breakdown voltage E-1mA from 216.17 V/mm to 362.50 V/mm. Besides, all the samples showed the low value of leakage current of lower than 0.1 mu A. This varistor might be a promising candidate for highly effective applications. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Ceramics |
| 研究领域[WOS] | Materials Science |
| 关键词[WOS] | ELECTRICAL-PROPERTIES ; ZNO VARISTOR ; ZINC-OXIDE ; GRAIN-GROWTH ; MICROSTRUCTURE ; BI2O3 ; ANTIMONY ; VOLTAGE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000376693800002 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/22984]  |
| 专题 | 上海硅酸盐研究所_无机功能材料与器件重点实验室_期刊论文 |
| 作者单位 | 1.Liaocheng Univ, Coll Mat Sci & Engn, Liaocheng 252059, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfinem, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bai, Hairui,Li, Shuhui,Zhao, Yunhan,et al. Influence of Cr2O3 on highly nonlinear properties and low leakage current of ZnO-Bi2O3 varistor ceramics[J]. CERAMICS INTERNATIONAL,2016,42(9):10547-10550. |
| APA | Bai, Hairui.,Li, Shuhui.,Zhao, Yunhan.,Xu, Zhijun.,Chu, Ruiqing.,...&Li, Guorong.(2016).Influence of Cr2O3 on highly nonlinear properties and low leakage current of ZnO-Bi2O3 varistor ceramics.CERAMICS INTERNATIONAL,42(9),10547-10550. |
| MLA | Bai, Hairui,et al."Influence of Cr2O3 on highly nonlinear properties and low leakage current of ZnO-Bi2O3 varistor ceramics".CERAMICS INTERNATIONAL 42.9(2016):10547-10550. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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