Microstructures and tribological behaviors of C_f/C‐SiC composites tailored by Cu and Fe‐Si matrices

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.

Experimental Investigation of the Temperature, Pressure, and Binder System Influence on Vacuum Postdrying Processes and Moisture Management of Li‐Ion Battery Electrodes

“…Both binder systems are applicable to anode and cathode, although aqueous processing for cathodes is challenging and the subject of current studies. [ 21–23 ]…”

“…Both binder systems are applicable to anode and cathode, although aqueous processing for cathodes is challenging and the subject of current studies. [21][22][23] Drying experiments at various pressure settings and temperatures elucidate the significance of individual sorption mechanisms of the two electrodes. In addition, mass transport mechanisms that can occur due to system parameters (pressure and temperature) are discussed.…”

Metallurgical Properties of Biocarbon in Ferroalloy Production─A Review

“…In addition, the SiO reactivity shows a development trend with the decrease of wood apparent density as well as fiber wall area of materials. Li 97 also emphasized that porosity is a significant property that impacts reactivity. The findings revealed that charcoal demonstrated higher reactivity and porosity in comparison to coke, black carbon, and coal.…”

Development and tribological studies of a novel metal‐ceramic hybrid brake disc

“…They show desirable properties, like low density (<2 g/cm³), exceptional tribological properties, damage tolerance and have been a focus of research 6–16 . Apart from organic brake pads, the tribological properties of different materials like, for example, C/SiC, 9,11,12,17–20 sintered metallics (MMC), 15,21–25 ceramics 26 and metals 22,26,27 have been investigated against C/SiC.…”

“…They show desirable properties, like low density (<2 g/cm³), exceptional tribological properties, damage tolerance and have been a focus of research. [6][7][8][9][10][11][12][13][14][15][16] Apart from organic brake pads, the tribological properties of different materials like, for example, C/SiC, 9,11,12,[17][18][19][20] sintered metallics (MMC), 15,21-25 ceramics 26 and metals 22,26,27 have been investigated against C/SiC.Krenkel 5 reported coefficient of friction (COF) values between 0.4 and 0.5 for organic brake pads on a SiCralee coated C/SiC brake disc. Langhof et al 11 tested LowMet and short-…”