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1. (WO2017205672) METHODS OF MODIFYING SURFACES OF DIAMOND PARTICLES, AND RELATED DIAMOND PARTICLES AND EARTH-BORING TOOLS

Pub. No.:    WO/2017/205672    International Application No.:    PCT/US2017/034550
Publication Date: Fri Dec 01 00:59:59 CET 2017 International Filing Date: Fri May 26 01:59:59 CEST 2017
IPC: E21B 10/54
E21B 10/42
Applicants: BAKER HUGHES INCORPORATED
Inventors: DIGIOVANNI, Anthony, A.
WEBB, Steven, W.
BIRD, Marc, W.
Title: METHODS OF MODIFYING SURFACES OF DIAMOND PARTICLES, AND RELATED DIAMOND PARTICLES AND EARTH-BORING TOOLS
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.