Microstructures and tribological behaviors of C f /C‐SiC composites tailored by Cu and Fe‐Si matrices
Source abstract
Abstract
Abstract Ternary Cu‐Fe‐Si alloy were applied to modify tribological behavior of carbon fiber/carbon‐silicon carbide (C f /C‐SiC) composites by reactive melt infiltration. Microstructures, physical properties and tribological properties on a full‐scale train brake test rig of the modified composites were studied. Results indicate that both Cu and Fe‐Si alloy as matrices lead to significantly enhanced thermal conductivity and compressive strength for C f /C‐SiC composites. Moreover, the average friction coefficient of the modified composites is between 0.25 and 0.55, which is higher than that of copper metal matrix composites. In addition, the average volume wear rate of the modified composites is only 0.168 cm 3 /MJ. The C f /C‐SiC composites modified by Cu and Fe‐Si alloy with improved physical properties and tribological properties meet the technical requirement and show high application potential in express train brake systems.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Brake Systems and Friction Analysis · Tribology and Wear Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Powder Metallurgy Research Institute Central South University Changsha PR China
Funding
National Natural Science Foundation of China
References (54)
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