Superabrasive articles and methods for removing interstitial...

Details Superabrasive articles and methods for removing interstitial... Superabrasive articles and methods for removing interstitial...

2011-07-05

2011-07-05

Wood, Elizabeth D (Department: 1732)

Abrasive tool making process, material, or composition

Miscellaneous

C051S307000, C051S309000

Reexamination Certificate

active

07972395

ABSTRACT:
A method of processing a polycrystalline diamond material is disclosed. According to the method, a metal-solvent catalyst is leached from a polycrystalline diamond material by exposing at least a portion of the polycrystalline diamond material to a leaching solution. The leaching solution includes water, a complexing agent, and a mineral acid. The complexing agent is configured to inhibit tungsten in the polycrystalline diamond material from oxidizing.

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