Solid solution tungsten carbide powders and applications thereof
AssigneeKennametal Inc.
InventorsOladapo O. Eso, Amanda Brown
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Abstract
An improved tungsten carbide powder comprises (W,Cr)C solid solution phase for oxidation resistance at high temperatures. The improved tungsten carbide powders may be formed by carburizing a mixture of tungsten powder, carbon powder, and Cr2O3 powder. The tungsten carbide powder herein may be used to form ready-to-press (RTP) or grade powders. These RTP may be used to form articles, including articles that require excellent oxidation resistance at high temperature. One such component is a seal ring for a liquid battery.
Claims6
A tungsten carbide powder comprising a (W,Cr)C solid-solution phase, comprising at least 5 wt. % chromium based on the total weight of the powder.
Dependencies are inferred from the claim text.