Silicon carbide composition for turbine blade tips
US5997248A · kind A · utility
41Cited by
14References
43Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2993
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A granular composition is applied to tips of rotor blades utilized in a gas turbine engine wherein the blade tips rub against an abradable ceramic layer. Individual grains each have a core of silicon carbide and a layer of aluminum nitride on the core. A layer of a cladding metal may be bonded to the aluminum nitride. The composition also may include particles of cubic boron nitride and/or particles of metal alloy blended with the grains of silicon carbide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.