Methods of attaching a polycrystalline diamond compact to a substrate

摘要

Methods of attaching a polycrystalline diamond compact (PDC) element to a substrate include maintaining a gap between the PDC element and an adjacent substrate, and at least substantially filling the gap with a deposition process. Methods of forming a cutting element for an earth-boring tool include forming a PDC element by pressing diamond crystals together, forming a substrate including a particulate carbide material and a matrix material, leaving a gap between at least portions of the PDC element and the substrate, masking surfaces of the PDC element and of the substrate that do not face the gap, and forming an adhesion material on surfaces of the PDC element and of the substrate that face the gap. Cutting elements for earth-boring tools include a PDC element attached to a substrate with at least one of diamond, diamond-like carbon, a carbide material, a nitride material, and a cubic boron nitride material.

主权项

1. A method of attaching a polycrystalline diamond compact element to a substrate, the method comprising:
positioning a polycrystalline diamond compact element adjacent a substrate; maintaining a gap between the polycrystalline diamond compact element and the substrate; and at least substantially filling the gap with an adhesion material using at least one of a chemical vapor deposition process, a plasma deposition process, a plasma-enhanced chemical vapor deposition process, a plasma arc deposition process, and a physical vapor deposition process.