Fabrication and properties of Mn1.56Co0.96Ni0.48O4 free-standing ultrathin chips
Kong, Wenwen; Chen, Long; Gao, Bo; Zhang, Bo; Zhao, Pengjun; Ji, Guang; Chang, Aimin; Jiang, Chunping
2014
发表期刊Ceramics International
ISSN0272-8842
卷号40期号:6页码:8405-8409
摘要

Mn1.56Co0.96Ni0.48O4 (MCN) free-standing ultrathin chips are successfully fabricated by using screen printing. The structure, electrical and IR absorption properties have been investigated as a function of the sintering temperature. The X-ray diffraction, X-ray photoelectron spectroscopy and field emission scanning electron microscope analyses show remarkable improvements in crystallinity, stoichiometry and relative density for MCN chips. From the electrical experimental results, it is found that the resistivity of the chip samples sharply decreases from 2660 to 21.9 Ω cm. Such feature is attributed to the decrease in the grain boundary resistance and the increase in Mn3+/Mn4+ ratio with increasing sintering temperature. Furthermore, Fourier transform infrared spectra show that the absorption bands ν1 (around 1160 cm-1) at 1100 °C almost disappears while the others still remain. It is ascribed to the increase in the density of samples. The intensities of symmetry bands ν2 (850 cm-1) are also found to be consistent with an increase in ratio of Mn3+ to Mn4+ ions with increasing sintering temperature.

关键词Sintering Electrical Properties Spinel Thermistors
DOI10.1016/j.ceramint.2014.01.049
收录类别SCI
WOS记录号WOS:000335201800094
引用统计
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/3772
专题中国科学院特殊环境功能材料与器件重点试验室
材料物理与化学研究室
通讯作者Chang, Aimin
作者单位1.Xinjiang Tech Inst Phys & Chem CAS, Key Lab Funct Mat & Devices Special Environm CAS, Xinjiang Key Lab Elect Informat Mat & Devices, Urumqi 830011, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, Key Lab Nanodevices & Applicat, Suzhou 215123, Peoples R China
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Kong, Wenwen,Chen, Long,Gao, Bo,et al. Fabrication and properties of Mn1.56Co0.96Ni0.48O4 free-standing ultrathin chips[J]. Ceramics International,2014,40(6):8405-8409.
APA Kong, Wenwen.,Chen, Long.,Gao, Bo.,Zhang, Bo.,Zhao, Pengjun.,...&Jiang, Chunping.(2014).Fabrication and properties of Mn1.56Co0.96Ni0.48O4 free-standing ultrathin chips.Ceramics International,40(6),8405-8409.
MLA Kong, Wenwen,et al."Fabrication and properties of Mn1.56Co0.96Ni0.48O4 free-standing ultrathin chips".Ceramics International 40.6(2014):8405-8409.
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