New negative temperature coefficient ceramics in Ca1-x Y (x) Cu2.5Mn0.5Ti4O12 system
Yuan, J (Yuan, Jun); Yang, T (Yang, Tian); Ni, Y (Ni, Yang); Zhang, B (Zhang, Bo)
2018
Source PublicationJOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
ISSN0957-4522
Volume29Issue:3Pages:2331-2334
Abstract

The Ca1-x Y (x) Cu2.5Mn0.5Ti4O12 (x = 0, 0.02, 0.05, 0.1) negative temperature coefficient (NTC) ceramics synthesized by conventional solid state reaction have been investigated. X-ray diffraction analysis has revealed that for 0 ae x ae 0.05, the phase of as-sintered ceramics is a single CaCu3Ti4O12 phase, nevertheless, for x = 0.1, a second phase Y2O3 appears. The grain size of as-sintered ceramics decreases with increasing Y content. All the ceramic samples prepared show a linear relationship between the natural logarithm of the resistivity and the reciprocal temperature, indicative of NTC characteristics. The electrical resistivity decreases at first and then increases with the increase of the Y content. The electrical conductivity anomaly appearing in these ceramics should be attributed to the substitution of the Y3+ for Ca2+ on one hand and the presence of Y2O3 phase on the other hand.

DOI10.1007/s10854-017-8150-5
Indexed BySCI
WOS IDWOS:000422993100070
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Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/5211
Collection中国科学院特殊环境功能材料与器件重点试验室
Corresponding AuthorZhang, B (Zhang, Bo)
Affiliation1.Shihezi Univ, Sch Chem & Chem Engn, Shihezi 832003, Peoples R China
2.Chinese Acad Sci, Key Lab Funct Mat & Devices Special Environm, Urumqi 830011, Peoples R China
3.Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China
4.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, Urumqi 830011, Peoples R China
Recommended Citation
GB/T 7714
Yuan, J ,Yang, T ,Ni, Y ,et al. New negative temperature coefficient ceramics in Ca1-x Y (x) Cu2.5Mn0.5Ti4O12 system[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2018,29(3):2331-2334.
APA Yuan, J ,Yang, T ,Ni, Y ,&Zhang, B .(2018).New negative temperature coefficient ceramics in Ca1-x Y (x) Cu2.5Mn0.5Ti4O12 system.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,29(3),2331-2334.
MLA Yuan, J ,et al."New negative temperature coefficient ceramics in Ca1-x Y (x) Cu2.5Mn0.5Ti4O12 system".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 29.3(2018):2331-2334.
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