Journal
CERAMICS INTERNATIONAL
Volume 46, Issue 14, Pages 23236-23244Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2020.06.108
Keywords
SiC@Kh550; Self-assembling; Friction and wear properties; Fatigue wear
Categories
Funding
- National Key R&D Program of China [2017YFB0308303]
- Shaanxi Province Technology Innovation Guide Special Project [2017CGZH-RGGJ-01]
- Shaanxi Provincial Key Research [2018ZDCXL-GY-09-05]
- Analytical & Testing Center of Northwestern Polytechnical University
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In this work, to improve the friction and wear properties of carbon fiber (CF) reinforced resin-based composites (CFRC), silicon carbide (SiC) @ gamma-Aminopropyl triethoxysilane (Kh550) was self-assembled on the surface of CF. Compared to the unmodified CFRC, the dynamic friction coefficients of modified ones with different grafting time increased by 0.05, 0.1 and 0.1, respectively, while the wear rates correspondingly dropped sharply by 79%, 56% and 25%, respectively. According to the Raman spectroscopic analysis of worn surfaces, the stress distributions of modified samples were uniform and the stress concentration points decreased. Grafted SiC@Kh550 particles could absorb energy, which was beneficial to increasing the interfacial stress between CF and phenolic resin, thereby alleviating fatigue wear.
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