NTC陶瓷材料Co1.5Mn1.5-XNiXO4中阳离子分布与导电性间的关系
Alternative Titlecorrelation between cation distribution and electrical property in co1.5mn1.5-xnixo4 ntc ceramic material
张惠敏; 常爱民; 王伟; 赵青; 彭昌文; 陈爱香; 姚金城
2010
Source Publication无机化学学报
ISSN1001-4861
Volume26Issue:5Pages:781-786
Abstract

本文通过溶胶-凝胶法制备三元系Co1.5Mn1.5-XNiXO4(=0,0.1,0.3,0.5,0.7,1.0)NTC热敏电阻粉体材料,采用激光粒度分析、X射线衍射分析、红外光谱分析、电阻测量等手段,表征了煅烧材料的颗粒尺寸、烧结体的物相、红外吸收光谱以及陶瓷材料的电学特性.结合XRD、IR的分析结果,探讨了阳离子分布与热敏电阻电性能之间的关系,为解决热敏电阻材料高精度、高可靠性方面提供了依据.结果表明:随着Ni离子的增加,所得热敏材料的电阻率呈U型变化,材料常数B值从4427减小到2429K,该系列的电阻率、B25/50值调整范围较大,是一种具有实际应用价值的NTC热敏电阻.

Other Abstract

The ternary system NTC (negative temperature coefficient) powders of Co1.5Mn1.5-XNiXO4 (X=0, 0.1, 0.3, 0.5, 0.7, 1.0) materials were prepared via sol-gel method. The particle size of calcined powders, phase structure, infrared absorption spectra and electrical properties were characterized by using laser particle size analyzer, XRD, IR and electrical measurements, respectively. Combined with the results of XRD and IR spectra, the relation between cation distribution and electrical properties of NTC thermistors were investigated, which provided evidence for high precision and reliability of NTC material. The results of electrical measurements indicated that the electrical resistivity display a U-shape curve with the increase of Ni content, whereas the thermal constant B-25/50 decreased remarkably from 4427 to 2429 K. This means that electrical resistivity and B25/50 of Co1.5Mn1.5-XNiXO4 system could be adjusted to the desired values and then considered this ternary system as advanced semi-conducting materials for NTC thermistor applications.

KeywordNtc热敏电阻 阳离子分布 溶胶一凝胶法
Subject AreaChemistry
Indexed BySCI ; CSCD
CSCD IDCSCD:3942614
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/2575
Collection新疆维吾尔自治区电子信息材料与器件重点实验室
材料物理与化学研究室
Corresponding Author常爱民
Affiliation中国科学院新疆理化技术研究所;新疆电子信息材料与器件重点实验室;中国科学院研究生院
Recommended Citation
GB/T 7714
张惠敏,常爱民,王伟,等. NTC陶瓷材料Co1.5Mn1.5-XNiXO4中阳离子分布与导电性间的关系[J]. 无机化学学报,2010,26(5):781-786.
APA 张惠敏.,常爱民.,王伟.,赵青.,彭昌文.,...&姚金城.(2010).NTC陶瓷材料Co1.5Mn1.5-XNiXO4中阳离子分布与导电性间的关系.无机化学学报,26(5),781-786.
MLA 张惠敏,et al."NTC陶瓷材料Co1.5Mn1.5-XNiXO4中阳离子分布与导电性间的关系".无机化学学报 26.5(2010):781-786.
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