Ultra-hard constructions with enhanced second phase
US8741006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2011 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Jul 29, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An ultra-hard construction is disclosed that is prepared by a method comprising the steps of treating a material microstructure having a polycrystalline matrix first phase material and a second phase material from at least a partial region of the material microstructure, wherein the second phase material is disposed within interstitial regions of the material microstructure, and wherein removal of the second phase material creates a porous material microstructure characterized by a plurality of empty voids and replacing the removed second phase material with a replacement material having a thermal characteristic that more closely matched polycrystalline matrix first phase that the second phase material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.