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The effects of pH value on the characterization of CoMnNiO NTC thermistor nanopowders
Zhuang Jian-Wen; Chang Ai-Min; Jia Zheng; Zhuang Shun-Chang; Jia Dian-Zeng
2004
Conference Name3rd Asian Meeting on Electroceramics
Source PublicationCeramics International
Pages1661-1663
Conference DateDecember 7, 2003 - December 11, 2003
Conference PlaceSingapore
Abstract

The effects of pH value on the properties of CoMnNiO NTC thermistor nanopowders during coprecipitation process are studied. It showed that the particle size and the agglomeration increased with the increase of pH value. At pH 7 and 9, the wave-like grain structure has been observed in the microstructure of sintered samples by SEM, the reason for this phenomenon is that the tetragonal phase separated out of the cubic phase. At pH 8, the powders showed excellent sinterability with homogeneous and dense microstructure in the sintered samples. So the optimal pH value for the preparation of NTC thermistor nanopowders is 8. © 2004 Elsevier Ltd. and Techna Group S.r.l. All rights reserved.

Indexed ByEI
Document Type会议论文
Identifierhttp://ir.xjipc.cas.cn/handle/365002/2394
Collection材料物理与化学研究室
AffiliationXinjiang Tech. Inst. of Phys./Chem., CAS, Urumqi 830011, China; Department of Chemistry, Xinjiang University, 830046, China
Recommended Citation
GB/T 7714
Zhuang Jian-Wen,Chang Ai-Min,Jia Zheng,et al. The effects of pH value on the characterization of CoMnNiO NTC thermistor nanopowders[C],2004:1661-1663.
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