Abrasive coating for high-temperature mechanical systems
US11686208B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 6, 2020 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Jun 24, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A system may include a stationary component including: a substrate and an abradable layer on the substrate. The system also may include a rotating component including a tip and an abrasive coating system on the tip. The abrasive coating system may include a barrier layer and an abrasive material. The barrier layer may include at least one of hafnon, hafnium oxide, a blend of hafnium oxide and silicon or silicon oxide, a rare earth silicate, BSAS, stabilized zirconia, or stabilized hafnia. The blade track or blade shroud and the gas turbine blade are configured so the abrasive coating system contacts a portion of the abradable layer during rotation of the rotating component. The abradable layer is configured to be abraded by the contact by the abrasive coating system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.