Structure and electrical properties of Bi0.5Ba0.5FeO3-Y2O3 composite NTC ceramics
文献类型：期刊论文
| 作者 | Fu, Peng; Miao, Guangtan; Yin, Ming; Li, Wei; Hao, Jigong; Li, Guorong; Wang, Chuming |
| 刊名 | MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 249 |
| 关键词 | NTC ceramics Structure Electrical properties |
| ISSN号 | 0921-5107 |
| DOI | 10.1016/j.mseb.2019.114421 |
| 文献子类 | Article |
| 英文摘要 | (1 - x) Bi0.5Ba0.5FeO3 (BBF)-xY(2)O(3) negative temperature coefficient (NTC) ceramics were prepared by solid-state reaction method. With increasing Y2O3 contents, the grain sizes of the samples increase. All (1 - x) BBF-xY(2)O(3) ceramics have the typical NTC effect. The conductive mechanism of BBF based ceramics is largely the electron hopping. The thermistor constants B-25/75 of the (1 - x) BBF-xY(2)O(3) ceramics keep the lager values in the range of 6441 to 7611 K. The resistivity at 25 degrees C decreases from 7.82 x 10(7) Omega cm for the pure BBF ceramic to 10(6) Omega cm magnitudes for the 0.80 BBF-0.20Y(2)O(3) ceramic. The activation energy E-a of samples is in the range of 0.5003-0.5529 eV. The impedance analysis indicates that the grain boundary resistances are higher than intragrain resistances in BBF based ceramics. All samples have the single relaxation process, and the relaxation phenomena are attributed to hopping of oxygen vacancies. |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/26785]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Fu, Peng,Miao, Guangtan,Yin, Ming,et al. Structure and electrical properties of Bi0.5Ba0.5FeO3-Y2O3 composite NTC ceramics[J]. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS,2019,249. |
| APA | Fu, Peng.,Miao, Guangtan.,Yin, Ming.,Li, Wei.,Hao, Jigong.,...&Wang, Chuming.(2019).Structure and electrical properties of Bi0.5Ba0.5FeO3-Y2O3 composite NTC ceramics.MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS,249. |
| MLA | Fu, Peng,et al."Structure and electrical properties of Bi0.5Ba0.5FeO3-Y2O3 composite NTC ceramics".MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS 249(2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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