Recommendations for h-BN loading and service temperature to achieve low friction coefficient and wear rate for thermal-sprayed PEEK coatings

Tharajak, Jirasak; Palathai, Tippaban; Sombatsompop, Narongrit

doi:10.1016/j.surfcoat.2017.05.022

Cited by 42 publications

(8 citation statements)

References 13 publications

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“…The higher the applied load the lower the specific wear rate of the rubber composites. This phenomenon was similar to our previous work 26 which suggested that higher applied loads allowed the steel ball to penetrate through the rubber surface and reached the layer where the reinforcing additive was imbedded. If this was the case lower wear loss would be observed.…”

Section: Tribological Propertiessupporting

confidence: 91%

Tribological properties of carbon nanotube as co-reinforcing additive in carbon black/acrylonitrile butadiene rubber composites for hydraulic seal applications

Jansinak

Markpin

Wimolmala

et al. 2018

Journal of Reinforced Plastics and Composites

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This work investigated the cure characteristic, physical mechanical properties, and tribology behavior of carbon black filled acrylonitrile butadiene rubber composites using multi-walled carbon nanotubes as co-reinforcing additive in various contents from 0, 3, 6, 9, and 15 parts per hundred rubbers. The physical and tribological behavior was also observed in large-scale piston driven hydraulic apparatus which was specially designed for seal applications. The results suggested that the modulus and hardness were found to increase after adding multi-walled carbon nanotube whereas the tensile and tear strength were not significantly affected. Adding multi-walled carbon nanotube was found to increase the bound rubber and crosslink density. For ball-on-disc tribo-testing, it was found that the coefficient of friction of the rubber composites decreased with multi-walled carbon nanotube content and the applied loads whereas the specific wear rate was more influenced by the applied loads used. Finally, under the large-scale piston driven hydraulic test apparatus in comparison with commercial grade rubber seals, it was found that the weight loss for the acrylonitrile butadiene rubber composites with multi-walled carbon nanotube was much lower than that without multi-walled carbon nanotube. The carbon black/acrylonitrile butadiene rubber composites with 9–12 parts per hundred rubbers multi-walled carbon nanotube were recommended as the most suitable for hydraulic seal applications.

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Section: Tribological Propertiessupporting

confidence: 91%

Tribological properties of carbon nanotube as co-reinforcing additive in carbon black/acrylonitrile butadiene rubber composites for hydraulic seal applications

Jansinak

Markpin

Wimolmala

et al. 2018

Journal of Reinforced Plastics and Composites

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“…The thermal spraying is a suitable approach as onestep process to deposit high-performance polymer coatings and polymer composite coatings regardless of high melting point, low solubility, and high fluid viscosity of polymer matrix and its blends. [14][15][16][17][18][19] Tharajak et al [20] investigated the friction and wear characteristics of PEEK coatings with and without addition of hexagonal boron nitride (h-BN) in average particle size of 0.5 μm at different loadings of 2.0, 4.0, 6.0, and 8.0 wt% via flamesprayed technique. The tribological properties were tested at the temperatures of 30, 100, 200, and 300 C by ball-ondisc sliding wear test.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and tribological properties of carbon fiber‐reinforced polyetheretherketone composite coatings by flame‐spraying method

Wei

Man

et al. 2022

Polymer Composites

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The carbon fiber-reinforced polyetheretherketone (CF/PEEK) composite coatings with two types of short CFs, that is, 300-and 600-mesh, each in the contents of 10 and 30 wt% are deposited in comparison with the pure PEEK coatings by using a flame spraying method, respectively. The 300-mesh CFs with intact morphology and the 600-mesh CFs preserving fractured shape and higher graphitization degree are selected as the reinforced fillers in the CF/PEEK composite coatings. The flame-sprayed CF/PEEK composite coatings show the increased porosity with the higher CF contents. The adding of CFs in the flame-sprayed CF/PEEK composite coatings limits the thermal degradation of PEEK and restrains the PEEK crystallization showing low crystallinity degree and small crystallite size. The composite coatings in 10 wt % CF content exhibit the optimized nanoindentation behavior and tribological property. The 300-mesh CFs with large length and intact morphology in flame-sprayed CF/PEEK composite coatings lead to the increased surface hardness by 1.31 times over that of the pure PEEK coatings. The 600-mesh CFs with higher graphitization degree contribute to better tribological property of flame-sprayed CF/PEEK composite coatings with an order of magnitude lower specific wear rate.

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“…PEEK is a thermoplastic polymer with a glass transition temperature (Tg) of 143 °C whose composites are widely used in many tribological applications [5]. For elevated service temperatures, a maximum operating temperature of 250 °C was reported [9]. PI-based composites are categorized among high operating temperature polymers with excellent friction and wear resistance under unlubricated conditions, particularly at elevated temperatures [10,11].…”

Section: Introductionmentioning

confidence: 99%

Tribology of High-performance PEEK-, PI-, and ATSP-based Self-lubricating Polymers Up to 300 oC

Bashandeh¹,

Lan

2021

Preprint

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High-performance polymers (HPPs) with self-lubricating properties are promising materials for bearing and tribological components that demand low friction and low wear in the absence of liquid lubrication. This study reports on the tribological performance of three advanced HPPs, namely ATSP-, PEEK-, and PI-based polymer composites. The experiments were performed using pin-on-disk configuration under dry sliding conditions and different environmental temperatures from 25 (room temperature) to 300 °C. The role of temperature on the formation of polymer transfer films on the steel counterpart was investigated using microscopy and profilometric measurements, and correlations were made to their tribological performance. From the three tested composites, ATSP-based composite exhibited the best overall performance with low friction and low wear.

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Recommendations for h-BN loading and service temperature to achieve low friction coefficient and wear rate for thermal-sprayed PEEK coatings

Cited by 42 publications

References 13 publications

Tribological properties of carbon nanotube as co-reinforcing additive in carbon black/acrylonitrile butadiene rubber composites for hydraulic seal applications

Tribological properties of carbon nanotube as co-reinforcing additive in carbon black/acrylonitrile butadiene rubber composites for hydraulic seal applications

Mechanical and tribological properties of carbon fiber‐reinforced polyetheretherketone composite coatings by flame‐spraying method

Tribology of High-performance PEEK-, PI-, and ATSP-based Self-lubricating Polymers Up to 300 oC

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