The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 18, 1993
Filed:
Mar. 14, 1991
David E Slutz, Columbus, OH (US);
Francis R Corrigan, Westerville, OH (US);
General Electric Company, Worthington, OH (US);
Abstract
Multigrain abrasive compacts and processes for making the same are provided which comprise fine granules of cubic boron nitride or diamond bound by a sintered matrix derived from a coating on the granules. The coating comprises one or more layers of an active coating material which chemically bonds to the underlying surface. These compacts are obtained by coating fine granules of cubic boron nitride or diamond with the active coating material and sintering the coated particles with or without a powdered metal or alloy. The compacts can be obtained utilizing a short sintering step with relatively low pressures and temperatures. In certain embodiments, the use of high pressure, high temperature equipment can be voided. These compacts have improved breakdown characteristics due to the nature of the coated particles incorporated therein. The process provided is well suited for the use of diamond powder obtained from chemical vapor deposition processes.