What is it about?
Ultra-fast Joule heating (700°C/s, 50 s) joins SiCₓ/SiC composites using a 3D carbon fiber network as both heating source and reinforcement. TiC formation kinetically suppresses Ni diffusion, avoiding brittle Ni–Si compounds. Peak residual stress drops 47.2% to 143.9 MPa. Joint shear strength reaches 39.05 MPa (121.7% gain over conventional brazing).
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Why is it important?
This work enables reliable, high-strength joining of SiC composites for aerospace hot-end components by eliminating brittle Ni–Si compounds, reducing residual stress 47%, and cutting joining time to under 60 seconds.
Read the Original
This page is a summary of: Ultra-fast joining of SiCf/SiC composites via Joule-heated carbon fiber network with Ti–C–mediated Ni suppression, Carbon, May 2026, Elsevier,
DOI: 10.1016/j.carbon.2026.121716.
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