Process for producing ultrafine particles of ceramics
US4889665A · kind A · utility
7Cited by
10References
1Claims
0Family size
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Key dates
| Filing date | Jul 7, 1986 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Jul 7, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/64
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing ultrafine particles of a ceramic, which comprises heating a ceramic having substantially the same components as the final ultrafine ceramic particles, a metal constituting the metal component of the final ultrafine ceramic particles, a mixture of said ceramic with said metal or carbon, or a mixture of said metal with carbon by an arc plasma or a high frequency induction plasma generated in hydrogen, nitrogen, oxygen, a gaseous mixture of hydrogen and nitrogen, or a gaseous mixture of nitrogen and oxygen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.