Ceramic powders and thermal barrier coatings made therefrom
US8017230B2 · kind B2 · utility
2Cited by
15References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 2, 2006 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Mar 1, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention relates to ceramic powders comprising a zirconia-based component, e.g., yttria-stabilized zirconia, and an (alumina+silica)-based component, e.g., mullite. The ceramic powders are useful for forming thermal shock resistant coatings having the same composition, through deposition by thermal spray devices. This invention also relates to thermal barrier coating systems suitable for protecting components exposed to high temperature environments, such as the thermal environment of a gas turbine engine. This invention further relates to forming free-standing solid ceramic articles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.