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US 6,099,605 AGranted
Superabrasive boride and a method of preparing the same by mechanical alloying and hot pressing
AssigneeIowa State University Research Foundation, Inc.
InventorsBruce A. Cook, Joel L. Harringa, Alan M. Russell
Life of this patent
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Abstract
A ceramic material which is an orthorhombic boride of the general formula: AlMgB.sub.14 :X, with X being a doping agent. The ceramic is a superabrasive, and in most instances provides a hardness of 40 GPa or greater.
Claims7
A ceramic material comprising:
- an orthorhombic boride of the general formula:
- AlMgB.sub.14 :X, wherein X is present in an amount of from 5 weight % to 30 weight % and comprises a doping agent selected from the group consisting of Group III, IV and V elements and borides and nitrites therof, said ceramic material having a hardness greater than AlMgB.sub.14.
Dependencies are inferred from the claim text.