Process for brazing a metal object to a ceramic surface defining a hole for receiving the metal object
US4995547A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1990 |
| Grant date | Feb 26, 1991 |
| Priority date | — |
| Expiry date | Jun 4, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/84
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides a method for brazing a metal object to a ceramic surface defining a recess for receiving the metal object where the space between the metal object and the ceramic surface defining the recess inhibits the establishment of the oxygen depleted environment necessary to establish a reliable braze joint. The present invention includes the use of a material having a high affinity for oxygen that is positioned adjacent to the space between the metal object and the ceramic surface defining the recess and serves to pull or draw oxygen from the space to establish the oxygen depleted environment required to produce a reliable braze joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.