Abstract
Different pathways for the synthesis of mixed (Mo,W) carbides are presented and discussed. Thin mixed carbides films were deposited by the reactive cosputtering of W and Mo in a CH 4 (10%)/Ar gas mixture. Bulk carbides were prepared from various precursors during carburization reactions at different temperatures under a constant control of the gas flow rate of CH 4 (10%)/H 2. The principal aim of this work was to achieve an as good as possible homogeneity of the samples, at low temperatures, in comparison with the melting point of the tungsten (~3900 K). The structure of the samples was determined by X-ray and electron diffractions, and their composition by scanning Auger electron spectroscopy.
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