Alpha phase seeding of transition alumina using chromium oxide-based nucleating agents
US5219806A · kind A · utility
132Cited by
24References
48Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 16, 1990 |
| Grant date | Jun 15, 1993 |
| Priority date | — |
| Expiry date | Jul 16, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B35/62231
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention provides an improved alpha alumina-based ceramic and a method to make the same. The improvement consists of the addition of a chromium-based nucleating agent. Particularly useful embodiments of the improved alpha alumina-based ceramic include abrasive particles and fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.