Synthesis and properties of Mn1.05-yCo1.95-x-z-wNixMgyAlzFewO4 NTC ceramic by co-precipitation method
文献类型：期刊论文
| 作者 | Xia, JB (Xia, Junbo); Zhao, Q (Zhao, Qing); Chang, AM (Chang, Aimin) ; Zhang, B (Zhang, Bo)
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| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
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| 出版日期 | 2015 |
| 卷号 | 646期号:10页码:249-256 |
| 关键词 | NTC thermistor Co-precipitation Precursor Spinel Resistivity |
| ISSN号 | 0925-8388 |
| 中文摘要 | Mn1.05-yCo1.95-x-z-wNixMgyAlzFewO4 negative temperature coefficient (NTC) material was synthesized by double precipitation reacting method. The synthesis condition was optimized. Fourier infrared (FI) spectrometer indicated that the precursor was consisted of oxalate and hydroxide. The powder was studied by Xeray diffraction (XRD) to obtain the optimum calcination temperature of 800 degrees C. The ceramics were mainly in the cubic spinel structure except for the minority of cubic cobalt oxide. Scanning electron microscope (SEM) image showed that the grain size decreased with the increase of Al2O3 content in the ceramic. While the room temperature resistivity rho(25) increased from 3027 Omega cm to 16,911 Omega cm with increasing Al2O3 content. The material constants B-25/85 and activity energies were in the range of 3592-3977 K and 0.3112-0.3330 eV, respectively. Complex impedance analysis indicated that the grain boundary resistivity increased with increasing Al2O3 content, whereas, the grain resistance remains virtually unchanged. |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China |
| 公开日期 | 2015-10-23 |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/4329]  |
| 专题 | 新疆理化技术研究所_新疆维吾尔自治区电子信息材料与器件重点实验室 新疆理化技术研究所_材料物理与化学研究室 |
| 作者单位 | 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;Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xia, JB ,Zhao, Q ,Chang, AM ,et al. Synthesis and properties of Mn1.05-yCo1.95-x-z-wNixMgyAlzFewO4 NTC ceramic by co-precipitation method[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2015,646(10):249-256. |
| APA | Xia, JB ,Zhao, Q ,Chang, AM ,&Zhang, B .(2015).Synthesis and properties of Mn1.05-yCo1.95-x-z-wNixMgyAlzFewO4 NTC ceramic by co-precipitation method.JOURNAL OF ALLOYS AND COMPOUNDS,646(10),249-256. |
| MLA | Xia, JB ,et al."Synthesis and properties of Mn1.05-yCo1.95-x-z-wNixMgyAlzFewO4 NTC ceramic by co-precipitation method".JOURNAL OF ALLOYS AND COMPOUNDS 646.10(2015):249-256. |
入库方式： OAI收割
来源：新疆理化技术研究所
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