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A Novel Process to Synthesize NiCoMnO4 Nano-Powder for NTC Electro-Ceramics

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Abstract:

A pure spinel-type phase was attained by solid state reactions at room temperature, with no intermediate compounds. Its formation and the structural evolutions have been characterized by thermogravimetry-differential scanning calorimetry (TG/DSC) tests, X-ray diffraction (XRD) and scanning electron microscopy (SEM). Related electrical analyses were also performed. The results showed that the powders and ceramics prepared by the solid state reactions at room temperature exhibit a good electrical property because of narrow grain size distribution, controlled morphology, and high purity. Most importantly, this new approach greatly simplifies the preparation processes.

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Periodical:

Advanced Materials Research (Volumes 476-478)

Pages:

913-916

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.476-478.913

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Online since:

February 2012

Authors:

Jun Hua Wang, Jin Cheng Yao, Zhao Yang Chen, Yan Wei Fan, Dian Zeng Jia

Keywords:

Negative Temperature Coefficient (NTC), NiCoMnO4 Nano-Powder, Thermistor

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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