Erosion-resistant thermal barrier coating
US5350599A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1992 |
| Grant date | Sep 27, 1994 |
| Priority date | — |
| Expiry date | Oct 27, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An article is protected by a thermal barrier coating system. The article includes a substrate having an outer surface and a thermal barrier coating system deposited upon the substrate. The thermal barrier coating system includes a porous region wherein the ceramic is present as a porosity-containing columnar grain structure extending substantially perpendicular to the substrate surface, and an erosion-resistant densified region overlying the porous region. The thermal barrier coating is preferably applied by rotating the substrate past a deposition source to deposit the columnar grains, and then halting or slowing the rotation while continuing the deposition of the erosion-resistant region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.