Community Research and Development Information Service - CORDIS


Silicon nitride ceramics have been joined using the partial transient liquid phase bonding (PTLPB) process using Au/Ni-20Cr multilayer interlayers. The microstructure and chemical compositions of the joint interface have been characterised. Joints with room temperature (RT) maximum strengths of 698 MPa, corresponding to around 97% of the flexural strength of the monolithic ceramic were produced with bonding conditions that involved a 4 hour hold at a temperature of 1000 C. High temperature mechanical tests were also performed in a temperature range between 400 and 800 C in air. The results indicated that even at the highest testing temperature 25% of the RT joint strength has been retained. Moreover, the standard deviation in strength decreases, yielding joints with reproducible strengths.

Additional information

Authors: CECCONE G ET AL., JRC Petten (NL);GLAESER A M, University of Calyomia, Department of Material Science and Mineral Engineering (US)
Bibliographic Reference: Paper presented: 4th European Ceramic Society Conference, Riccione (IT), October 2-6, 1995
Availability: Available from (1) as paper EN 39372 ORA
Record Number: 199511543 / Last updated on: 1995-12-12
Original language: en
Available languages: en