Joint between a metal part and a ceramic part based SiC and/or C
US8177497B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 8, 2006 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Sep 13, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12507
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An assembly between a metal piece and a ceramic material piece made of SiC and/or C based ceramic material. The assembly includes a stack structure including the following elements assembled together in pairs in this order, by brazing: the metal piece; a first intermediate piece; a second intermediate piece; and the ceramic material piece. The second intermediate piece is made of another ceramic material, that is chemically less reactive relative to metals than are SiC or C, and that presents a coefficient of expansion smaller than that of the material constituting the metal piece. The first intermediate piece is made of metal and can deform to compensate for expansion difference between the metal piece and the second intermediate piece. The assembly can be used in a turbomachine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.