Ceramic composite, particularly for use at temperatures above 1400 degrees celsius
US5567518A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 13, 1995 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Apr 13, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2949
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A ceramic composite material comprising matrix material, reinforcing fibers and an intermediate interface material. The matrix material and reinforcing fibers consist of the same or different ceramic oxides having a melting point above 1600.degree. C. The interface material is applied as a coating on the fibers and consists of at least one ceramic oxide not exhibiting solid solubility, eutecticum below the temperature of manufacture or use or reactivity with any of the matrix or reinforcing materials. The matrix and reinforcing materials are substantially pure, and the combination fiber/interface material/matrix material is selected from the group consisting of: Al.sub.2 O.sub.3 /Al.sub.2 TiO.sub.5 /Al.sub.2 O.sub.3, YAG/Al.sub.2 TiO.sub.5 /Al.sub.2 O.sub.3, Al.sub.2 O.sub.3 /YAG/Al.sub.2 O.sub.3, Al.sub.2 O.sub.3 /SnO.sub.2 /Al.sub.2 O.sub.3, YAG/SnO.sub.2 /Al.sub.2 O.sub.3, Al.sub.2 O.sub.3 /mullite/Al.sub.2 O.sub.3, and mullite/ZrO.sub.2 /mullite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.