Thermal barrier coating resistant to sintering
US6203927A · kind A · utility
21Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1999 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | Feb 5, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12736
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A device (10) having a ceramic thermal barrier coating layer (16) characterized by a microstructure having gaps (18) with a sintering inhibiting material (22) disposed on the columns (20) within the gaps (18). The sintering resistant material (22) is stable over the range of operating temperatures of the device (10) and is not soluble with the underlying ceramic layer (16). For a YSZ ceramic layer (16) the sintering resistant layer (22) may preferably be aluminum oxide or yttrium aluminum oxide, deposited as a continuous layer or as nodules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.