Effect of Mn-doping on microstructure and electrical properties of La2/3Cu3Ti4O12 ceramics
文献类型：期刊论文
| 作者 | Fu, ZL; Nie, HC; Wei, YX; Zhang, B; Chang, AM |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2020-12-20 |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2020.156525 |
| 文献子类 | Article |
| 英文摘要 | Mn-substituted La2/3Cu3Ti4O12 negative temperature coefficient (NTC) ceramics were successfully prepared by the traditional solid-state method, and their microstructures and electrical properties were also investigated. XRD patterns showed that the ceramics before polishing were covered by a layer of Cu-rich phase. As the Mn content increased, the segregation of Cu-rich phase at the grain boundary decreased, which leads to the gradual increase of the grain boundary resistance. The linear electrical behaviors were slightly enhanced with increasing Mn content. The B-25/300-value and activation energy (E-a) increased gradually with increasing Mn content. The values of rho(25), B-25/300 and E-a of the sintered ceramics were in the range of 7.8 x 10(5)-6.2 x 10(6) Omega cm, 5751-6235 K and 0.496-0.538 eV, respectively. (C) 2020 Elsevier B.V. All rights reserved. |
| WOS关键词 | DIELECTRIC-PROPERTIES ; CACU3TI4O12 ; TEMPERATURE ; CU ; THERMISTORS ; CONDUCTION ; PHASE |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27580]  |
| 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, ZL,Nie, HC,Wei, YX,et al. Effect of Mn-doping on microstructure and electrical properties of La2/3Cu3Ti4O12 ceramics[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020. |
| APA | Fu, ZL,Nie, HC,Wei, YX,Zhang, B,&Chang, AM.(2020).Effect of Mn-doping on microstructure and electrical properties of La2/3Cu3Ti4O12 ceramics.JOURNAL OF ALLOYS AND COMPOUNDS. |
| MLA | Fu, ZL,et al."Effect of Mn-doping on microstructure and electrical properties of La2/3Cu3Ti4O12 ceramics".JOURNAL OF ALLOYS AND COMPOUNDS (2020). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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