Interaction of niobium and tungsten monocarbides in molten copper

详细

The chemical interaction of uncompacted monocarbide NbC and WC powders, which were taken at mass carbide ratios NbC: WC = 10: 1, 3: 1, 1: 1, and 1: 3 and a total carbide content of 20 wt %, in molten copper is studied at 1300°C. The primary and secondary phase transformations that result in the appearance and decomposition of an (Nb,W)C solid solution are analyzed. The activating role of low-frequency vibration is shown.