Phase transition and electrical properties of Ni1-xZnxMn2O4 (0 <= x <= 1.0) NTC ceramics
Cheng, F (Cheng, Fei)1; Wang, JH (Wang, Junhua)1; Zhang, HM (Zhang, Huimin)1; Chang, AM (Chang, Aimin)1; Kong, WW (Kong, Wenwen)1; Zhang, B (Zhang, Bo)1; Chen, L (Chen, Long)1; Zhang, HM
2015
发表期刊JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
卷号26期号:3页码:1374-1380
摘要The Ni1-xZnxMn2O4 (0 <= x <= 1.0) negative temperature coefficient (NTC) ceramics were prepared by the traditional solid state reaction method. X-ray diffraction results show that the as-sintered ceramics transformed to tetragonal spinel (x = 1) gradually from cubic spinel (x = 0). Scanning electron microscope images show that the shape of grains changed with increasing Zn ions content, because of the stress in grains induced by phase transition. The resistivity decreased slightly with increasing Zn ions content for x <= 0.25, but increased remarkably for higher Zn ions content. The values of rho(25), B-25/50 and activation energy for Ni1-xZnxMn2O4 (0 <= x <= 0.8) NTC thermistors were in the range of 3,511-136,780 Omega cm, 3,913-4,491 K and 0.3271-0.3691 eV, respectively. The values of relative resistance drift Delta R/R-0 (0 <= x <= 0.8) were <2 % and had a minimum of 0.69 %, after aging test for 500 h. According to the complex impedance analysis, both of the NTC characteristic (0 <= x <= 1.0) and the increase of resistivity with adding Zn ions content (x > 0.25), were attributed to the increase of grain boundaries resistance.
DOI10.1007/s10854-014-2549-z
收录类别SCI
WOS记录号WOS:000350223700013
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/4892
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
作者单位1.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Key Lab Funct Mat & Devices Special Environm, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Cheng, F ,Wang, JH ,Zhang, HM ,et al. Phase transition and electrical properties of Ni1-xZnxMn2O4 (0 <= x <= 1.0) NTC ceramics[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2015,26(3):1374-1380.
APA Cheng, F .,Wang, JH .,Zhang, HM .,Chang, AM .,Kong, WW .,...&Zhang, HM.(2015).Phase transition and electrical properties of Ni1-xZnxMn2O4 (0 <= x <= 1.0) NTC ceramics.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,26(3),1374-1380.
MLA Cheng, F ,et al."Phase transition and electrical properties of Ni1-xZnxMn2O4 (0 <= x <= 1.0) NTC ceramics".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 26.3(2015):1374-1380.
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