Gold wetting on ceramic surfaces upon coating with titanium hydride
US10583302B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Mar 10, 2020 |
| Priority date | — |
| Expiry date | Oct 9, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/403
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The application of a titanium hydride coating on a ceramic, preferably an alumina ceramic, as a facile and inexpensive approach to bond gold to the ceramic during brazing is described. During the brazing process, the deposited titanium hydride is first partially decomposed to form pure titanium intermixed with titanium hydride. The combination of pure titanium and titanium hydride contributes to improved adhesion of gold with the alumina ceramic without any detrimental reaction between pure titanium and gold. The titanium hydride coating can be applied by dip/spray/paint coating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.