Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Stewart N Middlemiss0
Christopher H Weis0
David Iverson0
Ronald K Eyre0
Date of Patent
May 31, 2011
0Patent Application Number
121127900
Date Filed
April 30, 2008
0Patent Primary Examiner
Patent abstract
A method for manufacturing an ultrahard compact includes assembling a mass of ultrahard material with a mass of substrate material such that the mass of ultrahard material extends radially outward a greater extent than the substrate material to compensate for a difference in the radial shrinkage of the ultrahard material compared to the substrate material during a sintering process. The method may further includes subjecting the assembled compact to a high pressure high temperature process mat results in the forming of an ultrahard compact including an ultrahard layer integrally bonded with a substrate.
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