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Allibert, C . H .,Chabretou, V .,Lavergne, O .,Missiaen, J . M . 대한금속재료학회(대한금속학회) 1999 METALS AND MATERIALS International Vol.5 No.2
The liquid-phase sintering (LPS) of cemented carbides prepared from submicronic powders induces a microstructural evolution generally ascribed to normal and abnormal grain growth. Such phenomena can be prevented by small additions of inhibitors (Cr, V) Presently, the mechanisms controlling either the grain growth or its inhibition are not strictly identified. In the present work, the effects of major parameters on grain growth (initial WC grain size, liquid composition, liquid fraction) are studied by image analysis of specimens sintered at 1450℃ up to 8h. The evolution of the mean intercept and intercept distribution of WC grains is analysed in teens of the possible mechanisms involved.