Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10624010 | Ceramics International | 2016 | 8 Pages |
Abstract
C/C composites and Ti6Al4V sheets were joined using a novel Cu/TiCuZrNi composite braze and the effect of Cu foil thickness on the microstructure and mechanical properties of the joints were investigated. A composite joining material, consisting of a TiC particle reinforced brazing alloy formed in situ during the brazing process was obtained. Before the joining process, the C/C composite surface was modified by solid state reaction with chromium to form a chromium carbide coating. This carbide reaction layer can react with the Ti-based brazing alloy and form evenly distributed TiC particles. The maximum apparent shear strength of as-received joint was 39±8.5 MPa obtained by using a 40 μm thick Cu foil together with the TiCuZrNi alloy; this value was 70% higher than the mechanical strength obtained for joints brazed with the TiCuZrNi alloy only.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xinrui Song, Hejun Li, Valentina Casalegno, Milena Salvo, Monica Ferraris, Xierong Zeng,