Preparation and characterization of Fe3+-doped Ni0.9Co0.8Mn1.3-xFexO4 (0 <= x <= 0.7) negative temperature coefficient ceramic materials

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	Preparation and characterization of Fe3+-doped Ni0.9Co0.8Mn1.3-xFexO4 (0 <= x <= 0.7) negative temperature coefficient ceramic materials
	Zhang Huimin; Chang Aimin; Peng Changwen
刊名	Microelectronic Engineering
	2011
卷号	88 期号:9 页码:2934-2940
关键词	Fe ion Doped Co-precipitation method NTC ceramic material Electrical properties
ISSN号	1679317
通讯作者	Zhang, HM
英文摘要	Based on spinel-type semiconducting electroceramics, negative temperature coefficient (NTC) thermistor materials, Ni0.9Co0.8Mn1.3-xFexO4 (0 <= x <= 0.7), with different compositions were synthesized by a co-precipitation method. The optimal pH value and the influence of Fe3+ doping during the synthesis processing were discussed. As-prepared Ni0.9Co0.8Mn1.3-xFexO4 materials were characterized by DT/TGA, XRD, FTIR, SEM, electrical measurement and impendance analysis. It was found that, as the Fe doping content in the Ni0.9Co0.8Mn1.3-xFexO4 samples increased, both the grain size and the density decreased. The as-sintered Ni0.9Co0.8Mn1.3-xFexO4 samples presented a single-phase cubic spinel structure. The impendance diagram indicated that the grain boundary resistance was dominant in the overall impendance of Ni0.9Co0.8Mn1.3-xFexO4 NTC ceramic materials. The value of rho(25). B-25/50, slope and activation energy for the samples Ni0.9Co0.8Mn1.3-xFexO4 sintered at 1200 degrees C were in the range of 453.1-2411 Omega cm, 3103-3355 K, 3.27325-3.43149 and 0.28207-0.29325 eV, respectively. This suggests that the electrical properties can be adjusted to desired values by controlling the Fe3+ ion doping content.
学科主题	Engineering ; Science & Technology - Other Topics ; Optics ; Physics
收录类别	SCI
WOS记录号	WOS:000295557400020
公开日期	2012-11-29
内容类型	期刊论文
源URL	[http://ir.xjipc.cas.cn/handle/365002/1417]
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	CAS, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China; Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang Huimin,Chang Aimin,Peng Changwen. Preparation and characterization of Fe3+-doped Ni0.9Co0.8Mn1.3-xFexO4 (0 <= x <= 0.7) negative temperature coefficient ceramic materials[J]. Microelectronic Engineering,2011,88(9):2934-2940.
APA	Zhang Huimin,Chang Aimin,&Peng Changwen.(2011).Preparation and characterization of Fe3+-doped Ni0.9Co0.8Mn1.3-xFexO4 (0 <= x <= 0.7) negative temperature coefficient ceramic materials.Microelectronic Engineering,88(9),2934-2940.
MLA	Zhang Huimin,et al."Preparation and characterization of Fe3+-doped Ni0.9Co0.8Mn1.3-xFexO4 (0 <= x <= 0.7) negative temperature coefficient ceramic materials".Microelectronic Engineering 88.9(2011):2934-2940.