Method of fabrication of ceramic powders
US5102646A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 20, 1990 |
| Grant date | Apr 7, 1992 |
| Priority date | — |
| Expiry date | Apr 20, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to a method of fabrication in the powdered state of ceramic compounds formed between a metalloid and a refractory metal, characterized in that it involves the following steps: PA0 a) said metalloid is caused to react with a reducing metal within a liquid bath constituted at least partly by a fused salt of said reducing metal in order to obtain a saltlike intermediate compound which combines said reducing metal and the metalloid, in solution in said bath, PA0 b) a reducible salt of said refractory metal is then injected into said bath in a divided form which is directly distributed throughout the bath in order to produce said powder by reaction of the reducible salt with said intermediate compound of the reducing metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.