New negative temperature coefficient ceramics in Zr-doped CaCu3Ti4O12 system
文献类型：期刊论文
| 作者 | Chen, XY (Chen, Xingyu)[ 1,2 ]; Zhang, B (Zhang, Bo)[ 1,3 ] ; Ni, L (Ni, Li)[ 3 ]; Zhou, Y (Zhou, Yang)[ 3 ]; Li, MY (Li, Mingya)[ 3 ]; Chang, AM (Chang, Aimin)[ 1,3 ]
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| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
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| 出版日期 | 2020 |
| 卷号 | 821期号:4页码:1-5 |
| ISSN号 | 0925-8388 |
| 关键词 | CaCu3Ti4O12 Doping Microstructure Electrical properties |
| DOI | 10.1016/j.jallcom.2019.153476 |
| 英文摘要 | In this study, negative temperature coefficient (NTC) ceramics based on CaCu3Ti4-xZrxO12(0 <= x <= 0.15) compositions have been successfully synthesized by traditional solid-state method. X-ray diffraction results show that the major phase of all samples is CaCu3Ti4O12 (CCTO) phase with body-centered cubic structure. The substitution of Zr4+ for Ti4+ inhibits the grain growth of CaCu3Ti4-xZrxO12 ceramics and greatly reduces the grain size. The results of X-ray photoelectron spectroscopy fully confirm the coexistence of Cu+/Cu2+ and Ti3+/Ti4+ ions, which are one of the important reasons for conductivity of CaCu3Ti4-xZrxO12 samples. There is a good linear relationship between the natural logarithm of resistivity and reciprocal temperature of all ceramic samples, which is consistent with NTC behavior. The obtained values of rho(150), B-150/550 and Ea of the sintered samples are in the range of 1.62 x 10(5)-3.39 x 10(5) Omega cm, 6378-6593 K and 0.550-0.568 eV, respectively. |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/7229]  |
| 专题 | 新疆理化技术研究所_中国科学院特殊环境功能材料与器件重点试验室 新疆理化技术研究所_材料物理与化学研究室 |
| 通讯作者 | Chang, AM (Chang, Aimin)[ 1,3 ] |
| 作者单位 | 1.ZKLM New Mat Yangzhou Co Ltd, Yangzhou 225600, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Xinjiang Key Lab Elect Informat Mat & Devices, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, XY ,Zhang, B ,Ni, L ,et al. New negative temperature coefficient ceramics in Zr-doped CaCu3Ti4O12 system[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,821(4):1-5. |
| APA | Chen, XY ,Zhang, B ,Ni, L ,Zhou, Y ,Li, MY ,&Chang, AM .(2020).New negative temperature coefficient ceramics in Zr-doped CaCu3Ti4O12 system.JOURNAL OF ALLOYS AND COMPOUNDS,821(4),1-5. |
| MLA | Chen, XY ,et al."New negative temperature coefficient ceramics in Zr-doped CaCu3Ti4O12 system".JOURNAL OF ALLOYS AND COMPOUNDS 821.4(2020):1-5. |
入库方式： OAI收割
来源：新疆理化技术研究所
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