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US 5,476,531 AGranted
Rhenium-bound tungsten carbide composites
AssigneeThe Dow Chemical Company
InventorsEdward E. Timm, Ann M. Gulau
Life of this patent
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Abstract
Rhenium metal is used as the sole binder metal in preparing hard metals based upon tungsten carbide, titanium carbide or hafnium carbide. The resultant hard metals can be used in conventional applications such as cutting tools.
Claims4
A dense refractory composition consisting of rhenium in an amount within a range of from 1 to 25 percent by weight of composition and a refractory metal carbide selected from tungsten carbide, hafnium carbide and titanium carbide in an amount within a range of from 75 to 99 percent by weight of composition, the amounts of rhenium and refractory metal carbide totaling 100 percent.
Dependencies are inferred from the claim text.