Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1582414 | Materials Science and Engineering: A | 2008 | 5 Pages |
Abstract
The structure and hardness of a WC-10Â wt% Co alloy prepared with an experimental WC powder are compared with those of another alloy of the same composition produced under the same conditions and prepared with a commercial WC powder. The experimental WC powder was synthesized by a gas-solid reaction between APT and methane at low temperature and the commercial WC powder was conventionally produced by a solid-solid reaction between tungsten and carbon black. WC-10Â wt% Co alloys with the two powders were prepared under the same conditions of milling and sintering. The structure of the sample prepared with the experimental WC powder is homogeneous and coarse grained. The structure of the sample prepared with the commercial powder is heterogeneous. Furthermore the size and shape of the WC grains are significantly different.
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Authors
F.A. da Costa, F.F.P. de Medeiros, A.G.P. da Silva, U.U. Gomes, M. Filgueira, C.P. de Souza,