| 掺杂对Ni-Mn-O系NTC热敏陶瓷及其电学性能的影响 |
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| 引用本文： | 王忠兵,吴蕾,赵肃莹,韩效钊.掺杂对Ni-Mn-O系NTC热敏陶瓷及其电学性能的影响[J].硅酸盐学报,2009,37(6). |
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| 作者姓名： | 王忠兵 吴蕾 赵肃莹 韩效钊 |
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| 作者单位： | 1. 合肥工业大学化学工程学院,合肥,230009;可控化学与材料化工安徽省重点实验室,合肥,230009
2. 合肥工业大学化学工程学院,合肥,230009 |
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| 基金项目： | 合肥工业大学博士启动基金 |
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| 摘 要： | 以Ni0.66Mn2.34O4为负温度系数(negative temperature coefficient,NTC)的热敏陶瓷基体,分别掺入Mg2+、Zn2+、Al3+、Fe3+或Ni2+等不同离子,以考察对结构和电性能的影响.X射线衍射结果表明:所有样品均为单相尖晶石结构,并计算出晶胞参数和近似的阳离子分布.电性能测量结果表明:当掺杂离子进入尖晶石结构B位时,对电阻率有较大影响;当掺杂离子进入尖晶石结构A位时,则对电阻率的影响较小.通过选择合适的掺杂离子可以调节其电性能参数.
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| 关 键 词： | 热敏陶瓷 电性能 负温度系数 尖晶石 |
EFFECT OF DOSAGE ON Ni-Mn-O DOPED NTC THERMO-SENSITIVE CERAMICS AND THEIR ELECTRICAL PROPERTIES |
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| WANG Zhongbing,WU Lei,ZHAO Suying,HAN Xiaozhao.EFFECT OF DOSAGE ON Ni-Mn-O DOPED NTC THERMO-SENSITIVE CERAMICS AND THEIR ELECTRICAL PROPERTIES[J].Journal of The Chinese Ceramic Society,2009,37(6). |
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| Authors: | WANG Zhongbing WU Lei ZHAO Suying HAN Xiaozhao |
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| Affiliation: | 1;2;1.School of Chemical Engineering;2.Anhui Key Laboratory of Controllable Chemistry Reaction & Material Chemical Engineering;Hefei University of Technology;Hefei 230009;China |
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| Abstract: | Ni_(0.66)Mn_(2.34)O_4 negative temperature coefficient(NTC) ceramics and its derivatives,doped by ions such as Mg~(2+),Zn~(2+),Al~(3+), Fe~(3+),and Ni~(2+),were prepared;the relationship between the structure and electrical properties of all NTC thermo-sensitive ceramics was investigated.X-ray diffraction shows that all samples have a single phase with a spinel structure.The lattice parameters and approximate cation distribution were calculated.From the electrical properties measurement it could be inferred... |
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| Keywords: | thermo-sensitive ceramics electrical property negative temperature coefficient spinel |
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