TY  - JOUR
AU  - Zhang, Yue
AU  - Yang, Mingming
AU  - Zhang, Zhaozhu
AU  - He, Yaohui
AU  - Liao, Chaoying
AU  - Chen, Hao
AU  - Yuan, Junya
AU  - Chu, Fanjie
AU  - Huang, Xiongrong
PY  - 2026
TI  - The effects of popcorn-like CeO2 decorated Cr2AlC hybrid on the tribological properties of CF/PTFE fabric composites
JO  - Friction
SN  - 2223-7690
SP  - 9441117
VL  - 14
IS  - 4
AB  - In this study, cerium oxide (CeO2) nanoflowers were uniformly grown on the surface of chromium aluminum carbide (Cr2AlC) particles via a simple and efficient coprecipitation approach, which resulted in the preparation of the hybrids referred to as Cr2AlC@CeO2. The CeO2 nanoparticles exhibited a capacity to alternate between the oxidation states of Ce3+ and Ce4+ under stress, forming a protective layer to repair damaged surfaces and reduce friction and wear at the nanoscale. The Cr2AlC@CeO2 hybrids were utilized to enhance the tribological performance of carbon fiber (CF) and polytetrafluoroethylene (PTFE) fiber blended fabric (CF/PTFE fabric) phenolic composites, and the friction test indicated that when the filler content reached 4.0 wt%, the wear rate of the fabric composites was 2.79×10−14 m3·N−1·m−1, which was 59% lower than that of the pure composites, and the coefficient of friction decreased by 39%. This enhancement was attributed to the formation of an adaptive tribofilm with a thickness ranging from 85 to 113 nm on the corresponding surface. The analysis of the worn surface and the tribofilm revealed a synergistic enhancement effect of Cr2AlC and CeO2. The Cr2AlC@CeO2-reinforced fabric composites (Cr2AlC@CeO2/fabric composites) exhibited the best wear resistance because of the superior load-bearing capacity of Cr2AlC and the outstanding lubricating properties of CeO2.
UR  - https://doi.org/10.26599/FRICT.2025.9441117
DO  - 10.26599/FRICT.2025.9441117