Ceramic heat barrier coating having low thermal conductivity, and process for the deposition of said coating
US6251504A · kind A · utility
10Cited by
2References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 3, 1999 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Jun 3, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A ceramic heat barrier coating is deposited on a substrate so that the coating has a columnar growth pattern which is interrupted and repeated a number of times throughout its thickness by successive regermination of the ceramic deposit. The regermination is obtained by a vapour phase deposition process wherein a polluting gas is introduced intermittently during the deposition of the ceramic. The resulting ceramic coating has a lower thermal conductivity than conventional columnar ceramic coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.