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Abstract
The influence of some process variables on the extent and number of WC/WC contacts in sintered compacts of a WC–25 wt-%Co alloy has been determined using optical and electron microscopy. Prolonged milling of the powder, solid-state presintering heat treatment, and liquid-phase sintering all decrease the extent of the WC/WC boundaries in the final product, whereas an increased compacting pressure promotes their formation.