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Effect of Mg substitution on microstructure and electrical properties of Mn1.25Ni0.75Co1.0-xMgxO4(0 <= x <= 1) NTC ceramics
Peng Changwen; Zhang Huimin; Chang Aimin; Guan Fang; Zhang Bo; Zhao Pengjun; Chang, AM
2012
发表期刊JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
ISSN9574522
卷号23期号:4页码:851-857
摘要

The NTC thermistors based on spinel-type semiconducting electroceramics with compositions Mn1.25Ni0.75Co1.0-xMgxO4 (0 <= x <= 1) were synthesized by solid-state method. The influences of Mg content on the Mn1.25Ni0.75Co1.0-xMgxO4 materials were investigated by laser particle size analyzer, XRD, SEM, EDS and electrical measurements, respectively. The experiment results show that the substituted Mg suppresses the separation of NiO phase. Both the grain size and density decrease as the amount of Mg content in Mn1.25Ni0.75Co1.0-xMgxO4 samples increases. In particular, the substituted Mg leads to a decrease in the resistance drift of the Mn1.25Ni0.75Co1.0-xMgxO4 NTC ceramics after aging test. This indicates that the Mg substituted Mn1.25Ni0.75Co1.0-xMgxO4 NTC ceramics display high electrical stability in comparison with the Mg-free Mn1.25Ni0.75Co1.0O4 ceramics.

学科领域Engineering ; Materials Science ; Physics
DOI10.1007/s10854-011-0505-8
收录类别SCI
WOS记录号WOS:000302817400006
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/1409
专题材料物理与化学研究室
通讯作者Chang, AM
作者单位CAS, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China;Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China;Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China
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Peng Changwen,Zhang Huimin,Chang Aimin,et al. Effect of Mg substitution on microstructure and electrical properties of Mn1.25Ni0.75Co1.0-xMgxO4(0 <= x <= 1) NTC ceramics[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2012,23(4):851-857.
APA Peng Changwen.,Zhang Huimin.,Chang Aimin.,Guan Fang.,Zhang Bo.,...&Chang, AM.(2012).Effect of Mg substitution on microstructure and electrical properties of Mn1.25Ni0.75Co1.0-xMgxO4(0 <= x <= 1) NTC ceramics.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,23(4),851-857.
MLA Peng Changwen,et al."Effect of Mg substitution on microstructure and electrical properties of Mn1.25Ni0.75Co1.0-xMgxO4(0 <= x <= 1) NTC ceramics".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 23.4(2012):851-857.
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