Articles for high temperature service and methods for their manufacture
US8192831B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2008 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Jan 3, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Articles coated via a plasma spray process, and methods for making such articles, are presented. For example, one embodiment is an article comprising a substrate comprising a top surface and a channel disposed in the substrate. The channel is defined by an internal channel surface disposed beneath the top surface and having a terminal end at an orifice at the top surface. A coating is disposed on the top surface and on at least a portion of the internal channel surface. A coating thickness at any point on the internal channel surface is less than a nominal coating thickness on the top surface, and the coating comprises a plurality of at least partially melted and solidified particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.