Methods of modeling and monitoring leaching behavior of polycrystalline diamond and methods of leaching polycrystalline diamond
US9606091B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2013 |
| Grant date | Mar 28, 2017 |
| Priority date | — |
| Expiry date | Jan 10, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2203/0685
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Embodiments of the invention relate to methods of modeling leaching behavior of a polycrystalline diamond (“PCD”) material used in leached polycrystalline diamond compacts (“PDCs”) and methods of monitoring leaching of a PCD material. In an embodiment, a method of modeling leaching behavior is disclosed. A PCD table is provided, which includes a plurality of bonded diamond grains defining a plurality of interstitial regions in which a metallic material is disposed. The PCD table is leached with a leaching agent to at least partially remove the metallic material from the PCD table. A leach depth of the PCD table is determined. A concentration of at least one constituent of the leaching agent is also determined. The leach depth is correlated with the concentration of the at least one metal to generate the model of leaching behavior.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.