Effects of Zn-doping on the electrical properties of ZnxFe2.5-xNi2Mn1.5O8 (0 <= x <= 0.8) NTC ceramics by coprecipitation method
Xie, XX (Xie, Xianxian); Chen, MX (Chen, Mingxing); Liu, T (Liu, Ting); Jiang, H (Jiang, Hui); Zhang, HM (Zhang, Huimin); Chang, AM (Chang, Aiming); Zhang, HM; Chang, AM
2017
发表期刊JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷号28期号:12页码:8655-8661
摘要

The ZnxFe2.5-xNi2Mn1.5O8(0 <= x <= 0.8) ceramics with different compositions were synthesized by coprecipitation method. The effects of Zn doping on the structure, electrical properties and stability of the ceramic samples were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), electrical measurement and X-ray photoelectron spectroscopy (XPS) analysis. It was found that, as the Zn doping content in the ZnxFe2.5-xNi2Mn1.5O8 samples increased, both the grain size and the density decreased. The XPS analysis confirmed the conduction of as-sintered ceramic structure was mainly due to hopping of electrons between Mn3+/Mn4+ and Fe2+/Fe3+ ions. The values of B-25/50 constant,rho(25) and E-a of ZnxFe2.5-xNi2Mn1.5O8 ceramic samples were in the range of 5375-4177 K, 9042-18 K Omega.cm and 0.464-0.360 eV, respectively. The values of relative resistance drift (Delta R/R-0) were in the range of 0.58-2.78% and had a minimum value with the Zn content of x = 0.2 after aging test at 125 degrees C for 500 h. This suggests that the electrical properties of ZnxFe2.5- xNi2Mn1.5O8 ceramic system can be adjusted to desired values by controlling the Zn ion doping content. Besides, the stability of Mn-Ni-Fe-O ceramic can be effectively improved by Zn doping.

DOI10.1007/s10854-017-6589-z
收录类别SCI
WOS记录号WOS:000401819000038
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5076
专题中国科学院特殊环境功能材料与器件重点试验室
通讯作者Zhang, HM; Chang, AM
作者单位1.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Xinjiang Key Lab Elect Informat Mat & Devices, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Xie, XX ,Chen, MX ,Liu, T ,et al. Effects of Zn-doping on the electrical properties of ZnxFe2.5-xNi2Mn1.5O8 (0 <= x <= 0.8) NTC ceramics by coprecipitation method[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2017,28(12):8655-8661.
APA Xie, XX .,Chen, MX .,Liu, T .,Jiang, H .,Zhang, HM .,...&Chang, AM.(2017).Effects of Zn-doping on the electrical properties of ZnxFe2.5-xNi2Mn1.5O8 (0 <= x <= 0.8) NTC ceramics by coprecipitation method.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,28(12),8655-8661.
MLA Xie, XX ,et al."Effects of Zn-doping on the electrical properties of ZnxFe2.5-xNi2Mn1.5O8 (0 <= x <= 0.8) NTC ceramics by coprecipitation method".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 28.12(2017):8655-8661.
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