Methods of fabricating a polycrystalline diamond compact...

Details Methods of fabricating a polycrystalline diamond compact... Methods of fabricating a polycrystalline diamond compact...

2009-01-30

2011-12-06

Cleveland, Michael (Department: 1712)

Coating processes

With post-treatment of coating or coating material

Chemical agent applied to treat coating

C051S295000, C051S307000, C051S308000, C051S309000, C175S428000, C175S432000, C175S434000, C428S446000, C428S688000, C428S698000

Reexamination Certificate

active

08071173

ABSTRACT:
In an embodiment, a method of fabricating a polycrystalline diamond compact includes forming an assembly including an at least partially leached polycrystalline diamond table that includes a plurality of interstitial regions therein and a surface; at least one silicon-containing layer positioned adjacent to the surface of the at least partially leached polycrystalline diamond table; and a substrate positioned at least proximate to the at least partially leached polycrystalline diamond table. The method further includes subjecting the assembly to a high-pressure/high-temperature process; at least partially infiltrating the at least partially leached polycrystalline diamond table with the at least one silicon-containing layer, in response to the high-pressure/high-temperature process, to form an at least partially infiltrated polycrystalline diamond table that bonds to the substrate; and exposing the at least partially infiltrated polycrystalline diamond table to an acid such that at least a thermal stability thereof is enhanced.

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