Abrasive rotor shaft ceramic coating
US8790078B2 · kind B2 · utility
3Cited by
31References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2010 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Mar 6, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An abrasive coating on a rotor shaft interacts with cantilevered vanes to form an abradable air seal in a turbine engine. The abrasive coating includes a metal bond coat, and an abrasive layer containing a plurality of abrasive grit particles in a ceramic matrix. The grit particles may be selected from cubic boron nitride (CBN), zirconia, alumina, silicon carbide, diamond and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.