Alumina-or alumina/zirconia-silicon carbide whisker ceramic composites and methods of manufacture
US5009822A · kind A · utility
36Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 17, 1989 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Jul 17, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2929
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A SiC whisker-reinforced ceramic article produced by subjecting the SiC whiskers to acid- and/or base-washing; subjecting ceramic particles and SiC whiskers to fluid classification; forming a suspension of the powdered ceramic and SiC whiskers; consolidating the suspension to form a green compact; optionally infiltrating the green compact with an aluminum compound which is a precursor to Al.sub.2 O.sub.3, and pressureless sintering the green compact to produce an SiC whisker-reinforced composite having high relative density at high SiC whisker loading.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.