Polycrystalline diamond compacts, methods of fabricating same, and applications using same
US7845438B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 15, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Aug 17, 2028 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C17/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Embodiments relate to PDCs, methods of fabricating PDCs, and applications for such PDCs. In an embodiment, a PDC includes a substrate and a pre-sintered PCD table including an interfacial surface that is bonded to the substrate. The pre-sintered PCD table may be substantially free of leaching by-products in a region at least proximate to the interfacial surface. In an embodiment, a method of fabricating a PDC includes providing an at least partially leached PCD including an interfacial surface. The method includes removing at least some leaching by-products from the at least partially leached PCD table. After removing the at least some leaching by-products, the method includes bonding the interfacial surface of the at least partially leached PCD table to a substrate to form a PDC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.