Method for manufacturing a part coated with a protective coating
US10233558B2 · kind B2 · utility
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3References
12Claims
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Assignee
Inventor
Key dates
| Filing date | Dec 8, 2014 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | May 4, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D21/12
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method of fabricating a part coated with a protective coating, the method including using micro-arc oxidation treatment to form a protective coating on the outside surface of a part, the part including a niobium matrix having metallic silicide inclusions present therein, the current passing through the part being controlled during the micro-arc oxidation treatment in order to subject the part to a succession of current cycles, the ratio of (quantity of positive charge applied to the part)/(quantity of negative charge applied to the part) lying in the range 0.80 to 1.6 for each current cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.