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Sic to metal brazing for medium and high temperature applications

Sic to metal brazing for medium and high temperature applications

Objective

The goal of the project is to develop innovative SiC-to-metal brazing techniques for working temperatures up to 1000°C and in corrosive conditions. For thermal applications (heat exchangers), mechanical applications (seals, bearings) and electrical heater applications, the existing brazing processes do not at all meet the requirements, as they are limited to working temperature of 400°C in non aggressive media. The technical challenge is to develop a brazing process which can overcome the large thermal expansion mismatch and the chemical incompatibility between SiC and metal. The project will study an innovative and promising multi-layer composite joints approach, with successive diffusion barrier and interlayer, creating chemical and mechanical gradients between SiC and metal. Moreover, an asymmetrical heating concept will be evaluated in order to limit the mechanical stresses after cooling. The results of the project are the brazing process for each application and the demonstrators tested in working conditions

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Coordinator

COMMISSARIAT A L'ENERGIE ATOMIQUE

Address

Rue Des Martyrs 17
38054 Grenoble

France

Administrative Contact

Anne FALANGA

Participants (6)

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AACHEN UNIVERSITY OF TECHNOLOGY

Germany

AICHELIN ENTWICKLUNGSZENTRUM UND AGGREGATEBAU GMBH

Germany

BURGMANN INDUSTRIES GMBH & CO. KG.

Germany

Ceratec Technical Ceramics BV

Netherlands

SCHUNK INGENIEURKERAMIK GMBH

Germany

THALES AVIONICS SA

France

Project information

Grant agreement ID: G5RD-CT-2001-00479

  • Start date

    1 July 2001

  • End date

    30 June 2005

Funded under:

FP5-GROWTH

  • Overall budget:

    € 2 109 909

  • EU contribution

    € 1 149 933

Coordinated by:

COMMISSARIAT A L'ENERGIE ATOMIQUE

France