Firing sol-gel alumina particles
US5725162A · kind A · utility
174Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 5, 1995 |
| Grant date | Mar 10, 1998 |
| Priority date | — |
| Expiry date | Apr 5, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/1418
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Sol-gel alumina that is dried but unfired can be explosively comminuted by feeding the dried gel into a furnace held at temperatures above those at which vaporizable materials are eliminated from the particles of gel. At suitably elevated temperatures the firing is sufficient to form fully densified alpha alumina particles of a size suitable for direct use as abrasive grits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.