Mn2.1Ni0.9O4热敏陶瓷的制备与复阻抗分析
张丙寅; 姚金城; 常爱民; 赵鹏君; 赵丽君
2013
Source Publication电子元件与材料
ISSN1001-2028
Volume32Issue:7Pages:41279
Abstract

采用传统固相反应法制备了Mn2.1Ni0.9O4热敏陶瓷,运用X射线衍射仪、直流阻温测试仪、交流阻抗技术对其结构和电学性能进行了测试,并对Mn2.1Ni0.9O4热敏陶瓷的微观导电机理进行了分析。结果表明:Mn2.1Ni0.9O4热敏陶瓷由立方尖晶石相和岩盐相NiO组成。其电阻主要来源于晶粒和晶界的贡献,在293~363 K测试温区内,其晶粒电阻和晶界电阻都表现出明显的NTC特性,且两者导电机理均符合小极化子跳跃电导模型,晶界电阻受岩盐相NiO的影响大于晶粒电阻。

Other Abstract

The negative temperature coefficient Mn2.1Ni0.9O4 ceramics were prepared by conventional solid-state reaction method. The structure and electrical properties of the prepared ceramics were characterized by X-ray diffraction, direct current (DC) resistance temperature measurement and alternative current (AC) impedance analysis. Furthermore, the conductive mechanism of Mn2.1Ni0.9O4 ceramics were expatiated in the microscopic respect. The results show that as-prepared Mn2.1Ni0.9O4 materials are composed of phase spine and rock salt phase (NiO). The contribution to the conductivity of Mn2.1Ni0.9O4 ceramic is mainly due to the grain boundary and grain. Both grain and grain boundary components possess NTC characteristic in the measured temperature range of 293–363 K and their conductivity exhibit a good agreement with Nernst-Einstein equation, which indicate that both conductive mechanism of grain and grain boundary components could be explained by small polaron hopping. However, the NiO phase has a greater influence on the grain boundary conductivity than the grain.

Keyword负温度系数热敏陶瓷 复阻抗 导电机理 晶粒电阻 晶界电阻 尖晶石结构
Document Type期刊论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/2560
Collection新疆维吾尔自治区电子信息材料与器件重点实验室
材料物理与化学研究室
Affiliation新疆电子信息材料与器件重点实验室;中国科学院特殊环境功能材料与器件重点实验室;中国科学院新疆理化技术研究所;中国科学院大学
Recommended Citation
GB/T 7714
张丙寅,姚金城,常爱民,等. Mn2.1Ni0.9O4热敏陶瓷的制备与复阻抗分析[J]. 电子元件与材料,2013,32(7):41279.
APA 张丙寅,姚金城,常爱民,赵鹏君,&赵丽君.(2013).Mn2.1Ni0.9O4热敏陶瓷的制备与复阻抗分析.电子元件与材料,32(7),41279.
MLA 张丙寅,et al."Mn2.1Ni0.9O4热敏陶瓷的制备与复阻抗分析".电子元件与材料 32.7(2013):41279.
Files in This Item:
File Name/Size DocType Version Access License
Mn2.1Ni0.9O4热敏陶瓷的制备与(1063KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[张丙寅]'s Articles
[姚金城]'s Articles
[常爱民]'s Articles
Baidu academic
Similar articles in Baidu academic
[张丙寅]'s Articles
[姚金城]'s Articles
[常爱民]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[张丙寅]'s Articles
[姚金城]'s Articles
[常爱民]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Mn2.1Ni0.9O4热敏陶瓷的制备与复阻抗分析.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.