Navegando por Autor "Diniz, M. J."
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Artigo Magnetic properties and hardness of nanostructured WC-Co cemented carbide(Trans Tech Publications, 2012-08) Araújo, José Humberto de; Manuel, João Baptista; Silva, Ariadne de Souza; Gomes, Uílame Umbelino; Diniz, M. J.Nacrystalline WC-10wt.%Co powders were prepared by high energy milling and liquid phase sintered. The powders with different milling time were characterized by X-ray diffraction and SEM. After sintered the WC-10wt.%Co cemented carbides exhibits ultra fine grain sizes. Coercitive field and Vickers hardness measurements on the consolided samples detected a significant increase and decrease Vickers hardness with the milling time increase in sintered samples