Methods of modifying surfaces of diamond particles, and related diamond particles and earth-boring tools
AssigneeBaker Hughes, A Ge Company, LLC
InventorsAnthony A. DiGiovanni, Steven W. Webb, Marc W. Bird
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Abstract
A method of modifying surfaces of diamond particles comprises forming spinodal alloy coatings over discrete diamond particles, thermally treating the spinodal alloy coatings to form modified coatings each independently exhibiting a reactive metal phase and a substantially non-reactive metal phase, and etching surfaces of the discrete diamond particles with at least one reactive metal of the reactive metal phase of the modified coatings. Diamond particles and earth-boring tools are also described.
Claims20
A method of modifying surfaces of diamond particles, comprising:
- forming spinodal alloy coatings over discrete diamond particles while the discrete diamond particles are mobilized by a particle dispersing apparatus;
- thermally treating the spinodal alloy coatings to form modified coatings each independently exhibiting a reactive metal phase and a substantially non-reactive metal phase;
- and
- etching surfaces of the discrete diamond particles with at least one reactive metal of the reactive metal phase of the modified coatings.
A method of modifying surfaces of diamond particles, comprising:
- forming spinodal alloy coatings over discrete diamond particles;
- thermally treating the spinodal alloy coatings to form modified coatings each independently exhibiting a reactive metal phase and a substantially non-reactive metal phase;
- selectively removing the substantially non-reactive metal phase of the modified coatings;
- and
- etching surfaces of the discrete diamond particles with at least one reactive metal of the reactive metal phase of the modified coatings after selectively removing the substantially non-reactive metal phase of the modified coatings.
Dependencies are inferred from the claim text.