LOW-TEMPERATURE SINTERING OF ZnO-Bi2O3-BASED VARISTOR CERAMICS FOR ENHANCED MICROSTRUCTURE DEVELOPMENT AND CURRENT-VOLTAGE CHARACTERISTICS
文献类型：期刊论文
| 作者 | Bernik, Slavko; Cheng, Lihong1; Podlogar, Matejka; Li, Guorong1 |
| 刊名 | CERAMICS-SILIKATY
 |
| 出版日期 | 2018 |
| 卷号 | 62期号:1页码:8 |
| 关键词 | ZnO Varistor ceramics Sintering Microstructure Electrical characteristics |
| ISSN号 | 0862-5468 |
| DOI | 10.13168/cs.2017.0040 |
| 英文摘要 | ZnO-Bi2O3-based varistor ceramics are typically sintered at temperatures above 1100 degrees C to ensure the proper microstructure development and the required current-voltage (I-U) characteristics. In this investigation the influence of the sintering regime at temperatures between 800 and 950 degrees C on the microstructure development and the I-U characteristics of varistor ceramics was studied. It was shown that the presence of a sufficient amount of Bi2O3-based liquid phase at the proper Sb2O3-to-Bi2O3 ratio enhanced the sintering and also promoted grain growth under the influence of the inversion boundaries (IBs) triggered in the ZnO grains by the Sb2O3. The well-developed microstructures with high density and grain sizes from 4 to 8 pm resulted in good current-voltage characteristics of the samples with a coefficient of nonlinearity a equal to about 30 and a low leakage current of below 1 mu A. Depending on the composition and the sintering regime, the threshold voltages V-T were in the applicable range from 270 V.mm(-1) to 850 V.mm(-1), even though values much greater than 1000 V.mm(-1) are typically obtained with such low sintering temperatures. |
| 学科主题 | Materials Science, Ceramics |
| WOS记录号 | WOS:000425476900002 |
| 出版者 | UNIV CHEMISTRY & TECHNOLOGY, PRAGUE |
| 资助机构 | The authors acknowledge the financial support by the Slovenian Research Agency (Program Contract No. P2-0084 and Project Grant L2-4192), the Center of Excellence NAMASTE (Slovenia), International Science & Technology Cooperation Program of China (no. 2013DFG51570) and the External Cooperation Program of the Chinese Academy of Sciences CAS (no. GJHZ1042). ; The authors acknowledge the financial support by the Slovenian Research Agency (Program Contract No. P2-0084 and Project Grant L2-4192), the Center of Excellence NAMASTE (Slovenia), International Science & Technology Cooperation Program of China (no. 2013DFG51570) and the External Cooperation Program of the Chinese Academy of Sciences CAS (no. GJHZ1042). |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24582]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Jozef Stefan Inst, Jamova Cesta 39, Ljubljana 1000, Slovenia 2.Chinese Acad Sci, Shanghai Inst Ceram, 1295 DingXi Rd, Shanghai 200050, Peoples R China |
| 推荐引用方式 GB/T 7714 | Bernik, Slavko,Cheng, Lihong,Podlogar, Matejka,et al. LOW-TEMPERATURE SINTERING OF ZnO-Bi2O3-BASED VARISTOR CERAMICS FOR ENHANCED MICROSTRUCTURE DEVELOPMENT AND CURRENT-VOLTAGE CHARACTERISTICS[J]. CERAMICS-SILIKATY,2018,62(1):8, 14. |
| APA | Bernik, Slavko,Cheng, Lihong,Podlogar, Matejka,&Li, Guorong.(2018).LOW-TEMPERATURE SINTERING OF ZnO-Bi2O3-BASED VARISTOR CERAMICS FOR ENHANCED MICROSTRUCTURE DEVELOPMENT AND CURRENT-VOLTAGE CHARACTERISTICS.CERAMICS-SILIKATY,62(1),8. |
| MLA | Bernik, Slavko,et al."LOW-TEMPERATURE SINTERING OF ZnO-Bi2O3-BASED VARISTOR CERAMICS FOR ENHANCED MICROSTRUCTURE DEVELOPMENT AND CURRENT-VOLTAGE CHARACTERISTICS".CERAMICS-SILIKATY 62.1(2018):8. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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