The friction and wear properties of carbon nanotubes/graphite/carbon fabric reinforced phenolic polymer composites

2014 ◽  
Vol 24 (sup1) ◽  
pp. 147-159 ◽  
Author(s):  
X.R. Zhang ◽  
X.Q. Pei ◽  
Q.H. Wang ◽  
T.M. Wang ◽  
S.B. Chen
Author(s):  
Majid R Ayatollahi ◽  
R Moghimi Monfared ◽  
R Barbaz Isfahani

In this study, the effects of nano-[Formula: see text] and carbon nanotubes on the friction and wear properties of carbon-epoxy woven composites have been explored. The unfilled carbon fabric composites and carbon fabric composites filled with carbon nanotubes and nano-[Formula: see text] were fabricated by vacuum infusion process. The worn surfaces were examined and possible wear mechanisms of unfilled and filled carbon fabric composites were discussed. In addition, the friction coefficient curves of unfilled and filled carbon fabric composites were analyzed and compared. The experimental results showed that either of the two nano-particles improved the friction coefficient and wear rate of carbon fabric composites; however, better improvement was observed for nano-SiO2. By adding these nano-particles to unfilled carbon fabric composites, a primary steady-state period with a low friction coefficient appeared in the friction coefficient curve of the composites, which indicates enhancement in bonding strength between carbon fiber and epoxy matrix due to the interfacial reinforcing action of the nano-particles.


RSC Advances ◽  
2017 ◽  
Vol 7 (64) ◽  
pp. 40592-40599 ◽  
Author(s):  
Kang Yang ◽  
Hongru Ma ◽  
Xiyao Liu ◽  
Yangming Zhang ◽  
Qiang He

The necessity of reducing energy consumption and usage of material in aerospace and aviation industries drives the further optimization of friction and wear properties of TiAl alloys.


2017 ◽  
Vol 733 ◽  
pp. 60-64
Author(s):  
Munir Tasdemir ◽  
Ozkan Gulsoy

In the present work, the friction and wear properties of Polypropylene (PP) based composites filled with Hydroxyapatite (HA) particles were studied. Fillers contents in the PP were 10, 20, and 30 wt%. The effects of hydroxyapatite ratio on the water absorption, friction and wear properties of the polymer composites is presented. The result showed that the addition of HA to the composite changed the water absorption, friction coefficient and wear rate.


Wear ◽  
2013 ◽  
Vol 308 (1-2) ◽  
pp. 105-112 ◽  
Author(s):  
Lei Yan ◽  
Huaiyuan Wang ◽  
Chao Wang ◽  
Liyuan Sun ◽  
Dujuan Liu ◽  
...  

2010 ◽  
Vol 44-47 ◽  
pp. 2181-2185 ◽  
Author(s):  
Yong Kun Wang ◽  
Zhi Wei Xu ◽  
Li Chen

Glass fiber (GF)/epoxy (EP) composites added by carbon nanotubes (CNTs) were fabricated to investigate the effects of CNTs on the friction and wear properties of GF/EP composites. The surface of the CNTs was treated with acid mixtures to improve their dispersion in the GF/EP composites. The changes of surface properties of CNTs were investigated by using fourier transform infrared spectroscopy. Ring-on-block type wear tests were performed to evaluate the frictional properties of composites. Results show that CNTs after acid treatments can improve the wear resistance and reduce the friction coefficient of GF/EP composites more remarkably than CNTs. The surface fracture of the composite was observed by scanning electron microscope.


2020 ◽  
Vol 142 (8) ◽  
Author(s):  
Homender Kumar ◽  
A. P. Harsha

Abstract In the present investigation, the COOH-functionalized multi-walled carbon nanotubes (MWCNTs) having an outer diameter of 20–30 nm and length 1−2 μm were dispersed in four different grades of polyalphaolefins (PAOs; i.e., PAO 4, PAO 6, PAO 40, and PAO 100) at various concentrations (0.025, 0.05, 0.075, 0.10, and 0.15 wt%) to evaluate friction, anti-wear, and extreme pressure properties. The tribological test was conducted as per ASTM standard using four-ball tester. The test results showed that with the addition of MWCNTs, the friction and wear properties of PAOs had been improved significantly as compared to the base oils. It was also observed that MWCNTs exhibited excellent anti-wear properties than friction properties. The possible reasons for the improvement in friction and wear properties are discussed with the aid of various analytical tools.


Rare Metals ◽  
2011 ◽  
Vol 30 (6) ◽  
pp. 657-663 ◽  
Author(s):  
Junhui Nie ◽  
Xian Jia ◽  
Chengchang Jia ◽  
Yi Li ◽  
Yafeng Zhang ◽  
...  

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