A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions

Li, Chunxia; Yan, Fengyuan

doi:10.1016/j.wear.2008.08.001

Cited by 16 publications

(14 citation statements)

References 14 publications

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“…Functional fillers allow for a micro-structural tailoring of polymer coatings with multifunctionality, for example, anti-wear and corrosion resistance, [1,2] hydrophobicity or hydrophilicity, and excellent tribological properties. [6][7][8][9] By combining different functional fillers, the tribological performance of PI composites was modified to meet the requirements of particular applications. Polyimide (PI) is a representative of high performance polymers in the field of tribology, both in its bulk and coating form.…”

Section: Introductionmentioning

confidence: 99%

“…Polyimide (PI) is a representative of high performance polymers in the field of tribology, both in its bulk and coating form. [6][7][8][9] By combining different functional fillers, the tribological performance of PI composites was modified to meet the requirements of particular applications. PTFE particles were found to lower and stabilize the friction coefficient of PI coatings, while SiC fillers improve their wear resistance.…”

Section: Introductionmentioning

confidence: 99%

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Tribological Synergy of Filler Components in Multifunctional Polyimide Coatings

et al. 2016

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Platelets as fillers in polymer coatings contribute to corrosion resistance by increasing the diffusion path of gases. The authors demonstrate that the same platelets can improve tribological properties and, thus, open a new way to design multifunctional polymer coatings. Improved corrosion resistance, low friction, and low wear are reported for polyimide composite coatings filled with a combination of boron nitride, pigment platelets, perfluoropolyether, and Si 3 N 4 particles. Contributions of different fillers to the tribological performance are explored for coatings with different filling protocols. The synergy of four components leads to the excellent tribological performance of the fully formulated coatings, while they cannot impart significant improvement in friction and wear when used separately.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tribological Synergy of Filler Components in Multifunctional Polyimide Coatings

et al. 2016

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“…There are large areas of sand‐dust environments all over the world accounting for about 21% of total land area of the world. Sand dust, by way of producing severe abrasive wear, can cause catastrophic failure of the braking system of various vehicles, excessive wear of wheel‐rail systems and trouble with the connector between the slider and electric wire of electrically driven automobiles and trains 1. Especially in the moon probe project, the sand‐dust environment contains small, angular and irregularly shaped particles that have demonstrated high wear and abrasion on mechanical and sealing systems 2, 3.…”

Section: Introductionmentioning

confidence: 99%

Comparative study of microstructure and tribological behavior of TiC/a‐C:H and a‐C:H coatings in a sand‐dust environment

Wang

Yan

et al. 2011

Surface & Interface Analysis

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TiC/a-C : H and a-C : H nanocomposite coatings were prepared on AISI 440C steel substrates using magnetron sputtering process. A comparative study was made on their composition and microstructure by Raman spectroscopy and high-resolution transmission electron microscopy (HRTEM). The tribological properties of two types of carbon-based coatings were investigated by pin-on-disc tribometer under the sand-dust conditions concerning the influence of applied load, amount of sand and sand particle sizes. The results show that these carbon-based coatings exhibited high tribological performance with low friction coefficient and wear rate under the sand-dust environments. However, the TiC/a-C : H coatings exhibit relatively higher fluctuant friction coefficient as well as higher wear rate in comparison with the a-C : H coatings under sand-dust environments. The formation of nanocrystalline hard TiC phase distributed in amorphous carbon matrix decreased the residual stress but significantly increased the hardness and Young's modulus of TiC/a-C : H coatings, and consequently caused a relatively higher abrasive and fatigue wear loss under the sand-dust conditions.

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“…The quality of the design depends, therefore, on the tribological behaviour of the materials, the efficiency of the surface coatings and the lubricants [1]. Various tribosystems have been designed in order to tackle this kind of mechanical problem [2][3][4][5][6][7]. The conception of a tribosystem requires informations from tribological data bases such as Tribex, Tribodata or Tribocollect, to evaluate the tribosystem and the materials to be analysed [8].…”

Section: Introductionmentioning

confidence: 99%

Study of the effect of speed and load on wear mechanism of a plan/plan contact with the help of a strain gage dynamometer

Larbi

Bilek

Meghlat

2010

EPJ Web of Conferences

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Abstract. In this paper we show a contribution to the study of the complex phenomenon of wear through the results obtained by rubbing together PTFE and steal. The wear system designed (pin on a disc) is equipped with strain gages that allow to measure simultaneously the normal and the tangential forces. Different tests have been used to validate the apparatus. The effect of various parameters such as the speed and the load has been investigated. The results obtained for the evolution of the coefficient of friction versus load and speed are in good agreement with the literature.

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A comparative investigation of the wear behavior of PTFE and PI under dry sliding and simulated sand-dust conditions

Cited by 16 publications

References 14 publications

Tribological Synergy of Filler Components in Multifunctional Polyimide Coatings

Tribological Synergy of Filler Components in Multifunctional Polyimide Coatings

Comparative study of microstructure and tribological behavior of TiC/a‐C:H and a‐C:H coatings in a sand‐dust environment

Study of the effect of speed and load on wear mechanism of a plan/plan contact with the help of a strain gage dynamometer

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