In Situ ‐Strengthened C/SiC Joint Brazed with Cu‐Based Active Filler and Its Performance
Source abstract
Abstract
Three‐dimensional needled C/SiC composites were brazed in vacuum with Cu–Ti–Al active filler at 950–1040°C for 10–30 min. The joint microstructure and fracture surface were characterized by optical microscopy ( OM ), scanning electron microscopy ( SEM ), energy‐dispersive spectroscopy ( EDS ), X‐ray diffraction ( XRD ), and transmission electron microscopy ( TEM ). A reaction layer filled with fine titanium carbide and titanium silicide grains was formed at the interface. Titanium carbide and titanium silicide particles and whiskers were also in situ formed in the brazing seam. Shear strength of the joint brazed at 970°C for 15 min was 85 MP a, 33 MP a, and 18 MP a at room temperatures 600 and 800°C, respectively.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Advanced ceramic materials synthesis · Aluminum Alloys Composites Properties · Advanced materials and composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China
Structural Ceramics and Composites Engineering Research Center Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China
University of Chinese Academy of Sciences Beijing 100039 China
Analysis and Testing Center Donghua University Shanghai 201620 China
Funding
National Natural Science Foundations of China · Shanghai Key Projects of Basic Research
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