Tribological properties of lanthanum treated carbon fibers reinforced PTFE composite under dry sliding condition

Shangguan, Qianqian; Cheng, Xugeng

doi:10.1016/j.wear.2007.01.020

Cited by 43 publications

(24 citation statements)

References 9 publications

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“…Rare earth salt (RES) treatment on carbon fibres [12][13][14][15][16][17][18] is a comparatively very recent technique compared to others, for example electrochemical, chemical, thermal, discharge plasma, radiation etc.…”

Section: Introductionmentioning

confidence: 99%

Strengthening of a Fibre-Matrix Interface: A Novel Method Using Nanoparticles

Tiwari

Bijwe

Panier

2013

Nanomaterials and Nanotechnology

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The surface of carbon fabric (CF) was treated with nanoparticles (NPs) of Ytterbium fluoride (YbF3) (40-80nm size) in various amounts (0, 0.1, 0.3 and 0.5wt%) to improve its wettability with a Polyetherimide (PEI) matrix. The effect of treatment on the fibres of the CF was also studied by adhesion testing and fibre tow tension testing. An improvement in wettability with PEI and a slight reduction in the tensile strength of the CF was observed in these tests. Fourier transform infrared-attenuated total reflectance spectroscopy (FTIR-ATR) indicated the addition of functional groups on the fabric after treatment. MicroRaman spectroscopy (MRS) showed a slight distortion in the structure of the CF due to the treatment. Increased roughness of the fibre surface and adhesion of NPs on the fibre surface were observed by field emission scanning electron microscopy (FESEM). Composites were developed based on untreated and surface-treated CFs by impregnation techniques. The composites were analysed for interlaminar shear strength (ILSS) and a maximum improvement of 61% was observed for the 0.3% concentration of YbF3, followed by a slight decline in ILSS, indicating that it was the optimum dose.

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Section: Introductionmentioning

confidence: 99%

Strengthening of a Fibre-Matrix Interface: A Novel Method Using Nanoparticles

Tiwari

Bijwe

Panier

2013

Nanomaterials and Nanotechnology

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“…[4] Strong interfacial adhesion of composite often leads to high tensile strength, high interlaminar shear strength, and high flexual strength. [17] As shown in SEM micrographs (Fig. 3), the surface became rougher after all treatments, which could form more mechanical interlocking sites and provide a strong interface bonding.…”

Section: Flexual Strength and Tribological Propertiesmentioning

confidence: 87%

Effect of carbon fiber surface treatments on the flexural strength and tribological properties of short carbon fiber/polyimide composites

Zhang

Pei

et al. 2008

Surface & Interface Analysis

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Pitch-based short carbon fibers (CFs) were treated by air oxidation and cryogenic nitrogen, respectively. Thereafter the treated and untreated CFs were incorporated into polyimide (PI) matrix to form composites. The CFs before and after treatment were examined by XPS and SEM.The flexural strength of the specimen was determined in a three-point test machine and the tribological properties of PI composites sliding against GCr15 steel rings were evaluated on an M-2000 model ring-on-block test rig. The results show that the surface of the treated CFs became rougher. Lots of active groups formed on the CF surface after air oxidation.The treatment can effectively improve the mechanical and tribological properties in their PI composites due to the enhanced fiber-matrix interfacial bonding.

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“…PTFE has very low friction coefficient, and has been widely used in mechanical fields. [6][7][8] Test methods on materials' tribology properties are well-developed, and industrial coatings with required properties for specific application can be easily obtained.…”

Section: Introductionmentioning

confidence: 99%

The application of PTFE coating on spherical joints

Zhang¹,

Wang²,

Chen³

2016

Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnolog

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Abstract. Spherical joints are wildly used in parallel mechanisms. This paper applied polytetrafluoroethylene (PTFE) on the surface of spherical joints, aiming at reducing both frictional resistance and clearance of this kind of joints. Firstly, three kinds of solid lubricants were coated on flat samples and their friction performances were investigated. Then the best of the three was used as friction-reducing layer filling the gap between the ball and the support in a joint. Finally, periodic rotating abrasion test was conducted on this coated spherical joint. Experimental results showed that PTFE coating could effectively reduce the clearance of ball joints and prevent components' surfaces from rapid wear, without increasing friction significantly.

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Tribological properties of lanthanum treated carbon fibers reinforced PTFE composite under dry sliding condition

Cited by 43 publications

References 9 publications

Strengthening of a Fibre-Matrix Interface: A Novel Method Using Nanoparticles

Strengthening of a Fibre-Matrix Interface: A Novel Method Using Nanoparticles

Effect of carbon fiber surface treatments on the flexural strength and tribological properties of short carbon fiber/polyimide composites

The application of PTFE coating on spherical joints

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