The optimal synthesis condition by sol-gel method and electrical properties of Mn1.5-xCo1.5NixO4 ceramics
文献类型:期刊论文
作者 | Zhang, Huimin![]() ![]() ![]() |
刊名 | Ceramics International
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出版日期 | 2014 |
卷号 | 40期号:6页码:7865-7872 |
关键词 | Electrical Properties Manganite-cobalt Nickel Sol-gel Method Ntc Thermistor Aging |
ISSN号 | 0272-8842 |
DOI | 10.1016/j.ceramint.2013.12.133 |
英文摘要 | A series of Mn1.5-xCo1.5NixO4 (0≤x≤1.2) negative temperature coefficient materials was synthesized by the sol-gel method. The optimal pH of reaction solutions was obtained by theoretical calculation. XRD and X-ray intensity ratios (I220/I 440) and (I440/I422) studies showed that as-sintered ceramics are single spinel structures with different cation distributions. The Ni2+ ions not only enter B-site but also occupy A-site. Electrical studies showed that with increasing Ni content, the resistivity decreased from 909.229 Ω cm to 221.873 Ω cm initially in the range of x≤0.5 and then increased to 726.933 Ω cm when x=1.2, whereas the B value decreased from 4427 K to 2134 K. In addition, different sintering temperature ceramics were investigated. A higher sintering temperature results in lower resistivity and B value at same Ni content. The Mn;bsubesubbsubesubbsubesubbsubesub material showed much improved electrical stability at 125 °C for 1000 h. The rate of change (ΔR/R) is 0.2%. |
WOS记录号 | WOS:000335201800026 |
公开日期 | 2014-11-11 |
源URL | [http://ir.xjipc.cas.cn/handle/365002/3770] ![]() |
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 | Zhang, Huimin |
作者单位 | 1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China 3.Xinjiang Tech Inst Phys & Chem CAS, Urumqi 830011, Peoples R China 4.Key Lab Funct Mat & Devices Special Environm CAS, Urumqi 830011, Peoples R China |
推荐引用方式 GB/T 7714 | Zhang, Huimin,Chang, Aimin,Guan, Fang,et al. The optimal synthesis condition by sol-gel method and electrical properties of Mn1.5-xCo1.5NixO4 ceramics[J]. Ceramics International,2014,40(6):7865-7872. |
APA | Zhang, Huimin.,Chang, Aimin.,Guan, Fang.,Zhao, Lijun.,Zhao, Qing.,...&Huang, Xia.(2014).The optimal synthesis condition by sol-gel method and electrical properties of Mn1.5-xCo1.5NixO4 ceramics.Ceramics International,40(6),7865-7872. |
MLA | Zhang, Huimin,et al."The optimal synthesis condition by sol-gel method and electrical properties of Mn1.5-xCo1.5NixO4 ceramics".Ceramics International 40.6(2014):7865-7872. |
入库方式: OAI收割
来源:新疆理化技术研究所
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