Superabrasive elements including ceramic coatings and methods of leaching catalysts from superabrasive elements
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United States of America Patent
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Feb 10, 2015
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N/A
app pub date -
Apr 26, 2010
filing date -
Apr 27, 2009
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Abstract
A method of processing a polycrystalline diamond element is disclosed. The method may include depositing a vaporized material over a selected portion of a polycrystalline diamond element to form a protective coating over the selected portion. The polycrystalline diamond element may include a polycrystalline diamond table. The method may also include exposing at least a portion of the polycrystalline diamond element to a leaching solution such that the leaching solution contacts an exposed surface region of the polycrystalline diamond table and at least a portion of the protective coating. The method may also include removing the polycrystalline diamond element from the leaching solution. The protective coating may be substantially impermeable to the leaching solution.
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