Method of bonding a ceramic article to a metal article
US4883217A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 1989 |
| Grant date | Nov 28, 1989 |
| Priority date | — |
| Expiry date | Mar 17, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/76
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A new and improved method of bonding a bonded ceramic-metal article is described. The ceramic-metal article comprises a ceramic article, such as a lanthana-strengthened yttria article, bonded to a metal article, such as niobium, by a layer of a brazing material, such as a brazing alloy consisting essentially of 63% by weight silver, 35.25% by weight copper, and 1.75% by weight titanium to form a bonded ceramic-metal article. The method of bonding the ceramic article to the metal article comprises placing the brazing alloy between the lanthana-strengthened yttria article and the niobium article and heating the layered structure in vacuum at about 50 degrees centigrade above the liquids temperature of the brazing alloy for a period of about 5 minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.