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Room Temperature Reduction of Scheelite (CaWO4)

Welham, N


A mixture of scheelite and magnesium has been mechanically milled together for 100 h, either with graphite or in a nitrogen atmosphere, with the intention of forming tungsten carbide or nitride. The resultant powders were examined by thermal analysis, isothermal annealing, and x-ray diffraction to determine the effect of milling on the reduction of scheelite. With graphite, nanocrystallite W2C was the exclusive tungsten product; WC was not detected even after annealing at 1000°C. No nitride...[Show more]

CollectionsANU Research Publications
Date published: 1999
Type: Journal article
Source: Journal of Materials Research


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