article
Effect of High Energy Milling on the Magnetic Properties of the WC-10wt.%Co Cemented Carbides
Fecha
2006-01Registro en:
Manuel ; ARAÚJO, J. H. ; COSTA, F. A. ; Macedo H.R. ; GOMES, U. U. ; Silva G.P. . Effect of High Energy Milling on the Magnetic Properties of the WC-10wt.%Co Cemented Carbides. Materials Science Forum, v. 530, p. 322-327, 2006. Disponível em: 10.4028/www.scientific.net/MSF.530-531.322 . Acesso em: 28 mai 2020.
Print: 0255-5476 Electronic: 1662-9752
530-531:322-327
Autor
Araujo, Jose Humberto
Manuel, Joao Baptista
Costa, F. A.
Macedo, Harim Revoredo de
Gomes, Uilame Umbelino
Silva, Angelus Giuseppe Pereira da
Resumen
Cemented tungsten carbides were produced by liquid-phase sintering. In these work high energy milling (HEM) was used to produce homogeneous and finely grained powder mixtures. The milling effect in the magnetic properties of sintered samples is studied. Differents mixtures in same composition (WC-10wt%Co) were prepared by conventional mixture technique and wet HEM up to 300 hs in planetary Mill. Magnetic hysteresis measurements on the sintered samples detected a significant increase in the coercitive field and a decrease in the saturation magnetization with milling time increasing. X-ray diffractogram show phase transformations with milling time. The Magnetic properties are correlated with phase relations and microstructural properties of the sintered samples.