Diamond sintered body having high strength and high wear-resistance and manufacturing method thereof
US5759216A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 1997 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Jan 17, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2203/0685
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of manufacturing a diamond sintered body includes the following steps: preparing a diamond powder having a particle size within a range of 0.1 to 10 .mu.m, coating the surface of each particle of the diamond powder with a sintering assistant agent including Pd within a range of 0.01 to 40 percent by weight and at least one iron family metal as a remainder, and liquid-phase sintering the coated diamond powder under a high pressure and high temperature condition. In this manner, a diamond sintered body having high strength and high wear-resistance, and containing diamond particles of 80 to 96 percent by volume, can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.