Preferentially binder enriched cemented carbide bodies and method of manufacture
US4610931A · kind A · utility
149Cited by
16References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1984 |
| Grant date | Sep 9, 1986 |
| Priority date | — |
| Expiry date | Mar 8, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12146
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Cemented carbide substrates having substantially A or B type porosity and a binder enriched layer near its surface are described. A refractory oxide, nitride, boride, and/or carbide coating is deposited on the binder enriched surface of the substrate. Binder enrichment is achieved by incorporating Group IVB or VB transition elements. These elements can be added as the metal, the metal hydride, nitride or carbonitride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.