Aluminum oxide powders and process
US4657754A · kind A · utility
147Cited by
8References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1985 |
| Grant date | Apr 14, 1987 |
| Priority date | — |
| Expiry date | Nov 21, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/14
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Fine alumina powders for making alumina bodies are produced by seeding of a non-alpha alumina with submicron alpha alumina particles, firing, and crushing and milling the fired product to a fine powder. The powder so produced may be formed by conventional techniques such as pressing, granulating, slip casting, tape casting, and extrusion, and sintered to produce the desired fired product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.