@article{Zhang2026, 
author = {Yue Zhang and Mingming Yang and Zhaozhu Zhang and Yaohui He and Chaoying Liao and Hao Chen and Junya Yuan and Fanjie Chu and Xiongrong Huang},
title = {The effects of popcorn-like CeO2 decorated Cr2AlC hybrid on the tribological properties of CF/PTFE fabric composites},
year = {2026},
journal = {Friction},
volume = {14},
number = {4},
pages = {9441117},
keywords = {friction and wear, hybrid, CeO2, Cr2AlC, carbon fiber (CF)/polytetrafluoroethylene (PTFE) fiber fabric},
url = {https://www.sciopen.com/article/10.26599/FRICT.2025.9441117},
doi = {10.26599/FRICT.2025.9441117},
abstract = {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.}
}