Abradable ceramic seal and method of making same
US4269903A · kind A · utility
79Cited by
6References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 6, 1979 |
| Grant date | May 26, 1981 |
| Priority date | — |
| Expiry date | Sep 6, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1275
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An abradable ceramic seal coating on at least one of a pair of members having relative rotational movement, the coating being formed of stabilized zirconia which is codeposited with a thermally decomposable organic powder, the codeposited layer being heated to decompose the organic filler and produce a porous coating of from about 20 to about 33% voids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.