Vacuum hot pressed highly dense, nanograined Mg(Al1-xCrx)(2)O-4 ceramics
文献类型：期刊论文
| 作者 | Yang, T (Yang, Tian); Zhang, B (Zhang, Bo) ; Zhao, Q (Zhao, Qing); He, DL (He, Donglin); Luo, P (Luo, Ping); Chang, AM (Chang, Aimin)
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| 刊名 | MATERIALS LETTERS
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| 出版日期 | 2017 |
| 卷号 | 194期号:5页码:42-44 |
| 关键词 | Electroceramics Sintering Nanograin Spinel Electrical properties |
| 通讯作者 | Zhang, B ; Chang, AM |
| 英文摘要 | Highly dense and nanograined Mg(Al1-xCrx)(2)O-4 (x = 0.1, 0.3, 0.5) negative temperature coefficient (NTC) thermistor ceramics have been successfully fabricated by vacuum hot-pressed sintering. The X-ray diffraction analysis has showed that the sintered ceramics crystallize in a cubic spinel structure. The scanning electron microscopy results show the sintered samples to be nanograined with average grain size ranging from 200 to 500 nm. The relative density of the ceramics ranges from 74.2% to 92.3%. The relative density increases and then decreases with increasing Cr content, and reaches its maximum 92.3% at x = 0.3. The values of rho(500) B-500/800 and E-a are in the range of 5.49 x 10(3)-6.06 x 10(8) Omega cm, 6847-12808 K, 0.591-1.105 eV, respectively, offer some prospects for potential use as high temperature NTC thermistors. |
| 收录类别 | SCI |
| WOS记录号 | WOS:000397353700012 |
| 源URL | [http://ir.xjipc.cas.cn/handle/365002/4764]  |
| 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 |
| 作者单位 | 1.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 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, T ,Zhang, B ,Zhao, Q ,et al. Vacuum hot pressed highly dense, nanograined Mg(Al1-xCrx)(2)O-4 ceramics[J]. MATERIALS LETTERS,2017,194(5):42-44. |
| APA | Yang, T ,Zhang, B ,Zhao, Q ,He, DL ,Luo, P ,&Chang, AM .(2017).Vacuum hot pressed highly dense, nanograined Mg(Al1-xCrx)(2)O-4 ceramics.MATERIALS LETTERS,194(5),42-44. |
| MLA | Yang, T ,et al."Vacuum hot pressed highly dense, nanograined Mg(Al1-xCrx)(2)O-4 ceramics".MATERIALS LETTERS 194.5(2017):42-44. |
入库方式： OAI收割
来源：新疆理化技术研究所
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