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http://dx.doi.org/10.4150/KPMI.2007.14.5.315

Consolidation of Binderless and Low-Binder WC hardmetal by Vacuum Sintering  

Min, Byoung-June (Korea Institute of Materials Science, Engineering Powder Research Group Changwon)
Park, Young-Ho (Division of material Science and Engineering, Pusan National University)
Lee, Gil-Geun (Division of material Science and Engineering, Pukyong National University)
Ha, Gook-Hyeon (Korea Institute of Materials Science, Engineering Powder Research Group Changwon)
Publication Information
Journal of Powder Materials / v.14, no.5, 2007 , pp. 315-319 More about this Journal
Abstract
Pure WC or WC with low Co concentration less than 0.5 wt.% is studied to fabricate high density WC/Co cemented carbide using vacuum sintering and post HIP process. Considering the high melting point of WC, it is difficult to consolidate it without the use of Co as binder. In this study, the effect of lower Co addition on the microstructure and mechanical properties evolution of WC/CO was investigated. By HIP process after vacuum sintering, hardness and density was sharply increased. The hardness values was $2,800kgf/mm^2$ using binderless WC.
Keywords
Binderless WC; WC/Co; Vacuum Sintering; HIP; High Densification;
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