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:
Jan. 08, 2019
Filed:
Mar. 09, 2016
Us Synthetic Corporation, Orem, UT (US);
Julie Ann Kidd, North Ogden, UT (US);
Heather Marie Schaefer, North Ogden, UT (US);
Chengkun Xu, Orem, UT (US);
Jason K. Wiggins, Draper, UT (US);
Matthew Brown, Provo, UT (US);
Cody Frisby, Payson, UT (US);
US SYNTHETIC CORPORATION, Orem, UT (US);
Abstract
In an embodiment, a method of fabricating a leached polycrystalline diamond ('PCD') body is disclosed. The PCD body includes bonded diamond grains defining interstitial regions at least a portion of which include at least one interstitial constituent disposed therein. The method includes leaching the PCD body with a leaching agent to remove at least a portion of the at least one interstitial constituent therefrom. The leaching agent includes a mixture having hydrofluoric acid in a first concentration of about 10 weight % to about 50 weight %, nitric acid in a second concentration of about 5 weight % to about 25 weight %, and water in a third concentration of about 25 weight % to about 85 weight %. Further embodiments relate to different leaching methods and different leaching agent compositions.