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The joining of silicon nitride ceramics can be promoted by the presence of reactive elements in brazes or diffusion bonding interlayers. This paper draws attention to the role of Cr and Ti in forming bridging compounds at ceramic-metal interfaces when Ag, Cu or Ni based brazes or Ni diffusion bonding interlayers are used. Laboratory trials show that bond quality is affected by the concentration of Cr or Ti in brazes, by coating the ceramics with Cr or Ti, and by process variables such as temperature, environment and surface finish.

Additional information

Authors: NICHOLAS M G, AEA Technology, Harwell Laboratory, Didcot, Oxon. (GB);PETEVES S D, JRC Petten (NL)
Bibliographic Reference: Paper presented: 4th International Symposium on Ceramic Materials and Components for Engines, Göteborg (SE), June 10-12, 1991
Availability: Available from (1) as Paper EN 36287 ORA
Record Number: 199111132 / Last updated on: 1994-12-02
Original language: en
Available languages: en