Structures and tribological performances of PEEK (poly-ether-ether-ketone)-based coatings designed for tribological application

Zhang, G.; Li, W.-Y.; Cherigui, M.; Zhang, C.; Liao, Hanlin; Bordes, J. M.; Coddet, Christian

doi:10.1016/j.porgcoat.2007.06.004

Cited by 62 publications

(25 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…From the tribological and mechanical point of view, a semi-crystalline spherulitic structure of PEEK coatings has benefits. [50][51][52] Dispersed spherulites increase coating hardness through restriction of the motions, slippages of the polymer chains. 52 However, the presence of amorphous areas between the lamellas within the spherulites and between them provides the material with a certain elasticity.…”

Section: Resultsmentioning

confidence: 99%

Electrophoretic Deposition, Microstructure and Selected Properties of Composite Alumina/Polyetheretherketone Coatings on the Ti-13Nb-13Zr Alloy

Moskalewicz

Zimowski

Zych

et al. 2018

J. Electrochem. Soc.

View full text Add to dashboard Cite

In this work, 45-120 μm thick, composite Al 2 O 3 /PEEK coatings were fabricated on the Ti-13Nb-13Zr alloy substrate using electrophoretic deposition. The anodic co-deposition of alumina and PEEK particles were investigated and discussed. The asdeposited coatings exhibited the uniform distribution of a nearly amorphous PEEK and crystalline alumina powders on the titanium alloy substrate. The morphology of PEEK in the coatings was changed by heating above the PEEK melting point from granular into dense coating matrix with semi-crystalline structure and spherulitic morphology. Scanning and transmission electron microscopy investigation of the coating microstructure revealed the presence of uniformly distributed Al 2 O 3 nanoparticles and their agglomerates within the PEEK matrix. Micro-scratch tests indicated that the coatings are characterized by excellent adhesion to the underlying substrate. The Al 2 O 3 /PEEK coatings significantly improved the wear resistance and reduced coefficient of friction of the Ti-13Nb-13Zr alloy during dry sliding, also in comparison with a polymer PEEK coated alloy. However, the wear resistance of the Al 2 O 3 /PEEK coated alloy during sliding in Ringer's solution was less than the PEEK coated alloy. The coatings increased the corrosion resistance of the alloy in Ringer's solution. The coatings were also found to be cytocompatible with Among biometallic materials, titanium alloys are increasingly used in medicine as implant material, due to their favorable mechanical properties, low elastic modulus, good electrochemical corrosion resistance and relatively good biocompatibility.1-4 Generally, β and near-β (including Ti-13Nb-13Zr) alloys have about 30% lower Young's modulus than that of two phase α+β alloys. 5 In the case of Ti-13Nb-13Zr alloy the elasticity modulus is reduced by Nb, 6 while Zr is neutral for both the α and β phase. The uses of all titanium alloys in applications exposed to abrasive wear in orthopedic surgery and traumatology, for example, in the head and acetabulum of hip endoprostheses, are limited. This is because of their relatively low hardness, low resistance to abrasive wear, high and unstable coefficient of friction (COF), severe adhesive wear and tendency to seize. 1,[7][8][9][10][11][12] Therefore, in order to improve the bio-tribological performance of titanium alloys, surface treatment is necessary.In recent years, polyetheretherketone (PEEK) coatings have often been applied as solid lubricant films in bio-tribosystems because of their notable wear resistance, corrosion resistance and self-lubricating capacity.13,14 PEEK, with a basic formula of (-C6H4-O-C6H4-O-C6H4-CO-)n, is a polyaromatic, semi-crystalline thermoplastic polymer exhibiting a superior combination of strength, stiffness, toughness and good biocompatibility. 15 Numerous studies have confirmed the successful clinical performance of PEEK for in vivo medical device applications, in orthopedic and spine implants. 13,[15][16][17][18] A number of studies [19][20][21] have also been conducted to d...

show abstract

Section: Resultsmentioning

confidence: 99%

Electrophoretic Deposition, Microstructure and Selected Properties of Composite Alumina/Polyetheretherketone Coatings on the Ti-13Nb-13Zr Alloy

Moskalewicz

Zimowski

Zych

et al. 2018

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…In order to reduce the friction coefficient of PEEK and therefore to increase its range of applications, some solid lubricants, such as glass and carbon fibres, graphite or carbon nanotubes [3,18,19,20], as well as polymers with low surface energy, such as PTFE [21,22], were added to the PEEK matrix. In this section, it was demonstrated that an EPD coating based on PEEK and PTFE treated in opportune condition after deposition had significant tribology properties as well as a remarkable super hydrophobicity with respect the pure PEEK coatings.…”

Section: Peek-ptfe Nanolayersmentioning

confidence: 99%

Formation of Nanolayer on Surface of EPD Coatings Based on Poly-Ether-Ether-Ketone

Riccardis¹

2017

Nanoscaled Films and Layers

View full text Add to dashboard Cite

Poly-ether-ether-ketone (PEEK) is a high performance polymer with many intrinsic properties. When it is used in the form of coating, an improvement of some of its functional properties was achieved by forming a surface nanolayer. In this chapter, it will be described how it was possible to obtain this result. Firstly, three kinds of PEEK composite coatings were deposited by electrophoretic deposition, adding alumina particles, polytetrafluoroethylene (PTFE) and lignin to PEEK. Then, the composite coatings were thermal treated in a furnace. Therefore, surface nanostructure and chemical composition of these PEEK composite coatings were modified with respect to bulk coatings, due to interaction between PEEK chain and secondary phase, emphasised by the thermal treatment conditions. Experimental evidence of the formation of surface nanolayer was provided by SEM, TEM, GIXRD, ATR-FTIR and XPS characterisations. Functional characterisations demonstrated that wear resistance-in the presence of alumina particles-hydrophobicity-in the presence of PTFE-and corrosion resistance-in the presence of Lignin-were increased with respect to pure PEEK.

show abstract

“…The tribological behavior of polymeric coatings may not necessarily follow the same behavior as that of their bulk counterparts. This is partly due to the fact that the structure of the polymer materials changes during the coating process, which is known to affect the tribological performance, e.g., being amorphous or crystalline [20]. Research examining the tribological behavior of polymeric coatings [20][21][22], under mild conditions of 1 N-10 N normal load and 0.25 m/s-2.5 m/s sliding speed have been reported.…”

Section: Introductionmentioning

confidence: 99%

Tribological performance of PTFE- and PEEK-based coatings under oil-less compressor conditions

Yeo

Polycarpou

2012

Wear

View full text Add to dashboard Cite

Structures and tribological performances of PEEK (poly-ether-ether-ketone)-based coatings designed for tribological application

Cited by 62 publications

References 21 publications

Electrophoretic Deposition, Microstructure and Selected Properties of Composite Alumina/Polyetheretherketone Coatings on the Ti-13Nb-13Zr Alloy

Electrophoretic Deposition, Microstructure and Selected Properties of Composite Alumina/Polyetheretherketone Coatings on the Ti-13Nb-13Zr Alloy

Formation of Nanolayer on Surface of EPD Coatings Based on Poly-Ether-Ether-Ketone

Tribological performance of PTFE- and PEEK-based coatings under oil-less compressor conditions

Contact Info

Product

Resources

About