Microstructure and Electrical Properties of Mn2.25-xNi0.75CoxO4 Thermistor Ceramics | |
Peng Chang-Wen; Zhang Hui-Min; Chang Ai-Min; Huang Xia; Yao Jin-Cheng | |
刊名 | JOURNAL OF INORGANIC MATERIALS |
2011 | |
卷号 | 26期号:10页码:1037-1042 |
关键词 | NTC thermistor ceramic spinel electrical property |
ISSN号 | 1000324X |
DOI | 10.3724/SP.J.1077.2011.01037 |
英文摘要 | A series of composite of the negative temperature coefficient (NTC) powders of Mn2.25-xNi0.75CoxO4 (0.8&lex&le1.2) materials were prepared via solid-state method. The particle size of calcined powders, ceramics phase structure, morphology and electrical properties were characterized by laser particle size analyzer, XRD, SEM and electrical measurements, respectively. The results show that when the Mn2.25-xNi0.75CoxO4 ceramics sintered at 1130-1230°C, their characteristic parameters B25/50 value are found to be in the range of 3487 K to 4455 K and their electrical resistivities ρ25°C are 1998 Ω·cm to 203617 Ω·cm. The B25/50 value and ρ25°C first increases and then decreases as the Co content increases. This means that electrical resistivity and B value of Mn2.25-xNi0.75CoxO4 ceramics could be adjusted to the desired values and this ternary system can be considered as the advanced semi-conducting materials for NTC thermistor applications. |
学科主题 | Materials Science |
WOS记录号 | WOS:000296440800005 |
公开日期 | 2012-11-29 |
内容类型 | 期刊论文 |
源URL | [http://ir.xjipc.cas.cn/handle/365002/1438] |
专题 | 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, Grad Univ, Beijing 100049, Peoples R China 2.Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China |
推荐引用方式 GB/T 7714 | Peng Chang-Wen,Zhang Hui-Min,Chang Ai-Min,et al. Microstructure and Electrical Properties of Mn2.25-xNi0.75CoxO4 Thermistor Ceramics[J]. JOURNAL OF INORGANIC MATERIALS,2011,26(10):1037-1042. |
APA | Peng Chang-Wen,Zhang Hui-Min,Chang Ai-Min,Huang Xia,&Yao Jin-Cheng.(2011).Microstructure and Electrical Properties of Mn2.25-xNi0.75CoxO4 Thermistor Ceramics.JOURNAL OF INORGANIC MATERIALS,26(10),1037-1042. |
MLA | Peng Chang-Wen,et al."Microstructure and Electrical Properties of Mn2.25-xNi0.75CoxO4 Thermistor Ceramics".JOURNAL OF INORGANIC MATERIALS 26.10(2011):1037-1042. |
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