Research on Binderless Tungsten Carbide Prepared by Spark Plasma Sintering

Abstract:

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Commerical pure WC powders of 0.2, 0.4, 0.8, 2.0 and 3.0 m in diameter were sintered by spark plasma sintering process at 1300 °C, respectively. By analyzing the XRD patterns of the initial powders and the microstructure of the sintered samples, it is affirmed that the powders with an average size of 0.8 m exhibits the best activity and sintering property. To optimize sintering temperature, the sintering of 0.8 m powders was carried out at 1200-1700 °C. The specimen sintered at 1300 °C has a density of 15.49 g/cm3 and an average grain size of about 0.7 m, and exhibits the most excellent mechanical properties. The corresponding Vickers hardness and transverse rupture strength are 2469 HV and 1656 MPa, respectively.

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Periodical:

Edited by:

Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng

Pages:

980-984

DOI:

10.4028/www.scientific.net/AMM.37-38.980

Citation:

X. Q. Li et al., "Research on Binderless Tungsten Carbide Prepared by Spark Plasma Sintering", Applied Mechanics and Materials, Vols. 37-38, pp. 980-984, 2010

Online since:

November 2010

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$35.00

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