Diamond-containing ceramic composites and methods of making same
US5215942A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 1988 |
| Grant date | Jun 1, 1993 |
| Priority date | — |
| Expiry date | Aug 15, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Diamond-containing ceramic composites useful as substrates and the like in the electronics industry as well as for abrasive and cutting applications and methods of making same are disclosed. More specifically, the sol-gel process is used to fabricate the composites by combining water, an organometallic precursor compound, alcohol or similar solvent between the water and the precursor compound, a catalyst, diamond powder and a thickening agent to form a moldable, wet, porous gel which can be dried at a temperature below the boiling point of any of the gel liquids to form a stabilized porous composite. The stabilized porous composite can be densified, by heat, in an essentially oxygen-free atmosphere to form a diamond-containing ceramic composite having low porosity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.