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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 661Carbothermal Synthesis of Cr3C2-WC-Ni...

Carbothermal Synthesis of Cr₃C₂-WC-Ni Nanocomposite Powders

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Abstract:

Cr₃C₂-WC-Ni nanocomposite powders with ~50-100 nm were synthesized from precursors by vacuum-aided carbothermal reduction at only 750 °C for 2 h. The phase composition and microstructure of the synthesized products were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The present study shows that Cr₃C₂-WC-Ni nanocomposite powders contain two kinds of solid-solution phases, namely Ni and (Cr, W)₃C₂ solid solution, respectively. WC and W₂C phases do not appear inreaction products due to the dissolution of tungsten atoms into Ni and Cr₃C₂ unit cells. Especially, there is a change of the crystalline structure for (Cr, W)₃C₂ phase from 750 °C to 800 °C.

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Periodical:

Advanced Materials Research (Volume 661)

Pages:

3-6

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.661.3

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Online since:

February 2013

Authors:

Yong Zhong Jin, Fa Ming Ye, Xian Guang Zeng, Rui Song Yang

Keywords:

Carbothermal Reduction, Chromium Carbide, Nanocomposite Powder, Precursor

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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