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Novel Route to Submicrometer Tungsten Carbide

Welham, N

Description

A mixture of graphite and scheelite (CaWO4) have been mechanically milled together for 40 h. The resultant powder and an unmilled powder were examined by thermal analysis, isothermal annealing, and X-ray diffraction to determine the effect of milling on the reduction of scheelite to tungsten carbide. The milled powder underwent a rapid reduction reaction at 800°C- 300°C lower than the unmilled powder. The reduction sequence to WC was shown to differ for the two powders with W2C intermediate in...[Show more]

CollectionsANU Research Publications
Date published: 2000
Type: Journal article
URI: http://hdl.handle.net/1885/90010
Source: AIChE Journal

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