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The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants.

Electrophoretic deposition was used to deposit carbon nanotube/polyether ether ketone (CNTs/PEEK) composite coatings onto porous titanium-tantalum (Ti-30Ta) substrates at different PEEK concentrations (4.5, 6.0, and 7.5 mg/mL). Coatings were analyzed for thickness, porosity, surface roughness, micro...

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Main Authors: Abd. Halim, Zulhelmi Alif, Mat Yajid, M. A., Mat Yajid, xAhmed. G., Saud, S. N., Abu Bakar, T. A.
Format: Article
Published: John Wiley and Sons Inc. 2023
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://eprints.utm.my/106275/
http://dx.doi.org/10.1002/app.54531
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spelling my.utm.1062752024-06-20T06:03:43Z http://eprints.utm.my/106275/ The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants. Abd. Halim, Zulhelmi Alif Mat Yajid, M. A. Mat Yajid, xAhmed. G. Saud, S. N. Abu Bakar, T. A. TJ Mechanical engineering and machinery Electrophoretic deposition was used to deposit carbon nanotube/polyether ether ketone (CNTs/PEEK) composite coatings onto porous titanium-tantalum (Ti-30Ta) substrates at different PEEK concentrations (4.5, 6.0, and 7.5 mg/mL). Coatings were analyzed for thickness, porosity, surface roughness, microhardness and bonding strength, with higher PEEK concentrations producing thicker and more uniform coatings. However, optimal coating thickness showed highest bonding strength; lower and higher thickness led to decreased bonding strength. The tribological properties of the CNTs/PEEK coated Ti-30Ta samples of different thicknesses (50, 70, and 100 μm) were evaluated using ball-on-flat linear reciprocating sliding tests under dry and wet conditions using simulated body fluid (SBF) as a lubricant. The CNTs/PEEK coatings provided excellent tribological protection under dry friction, with thicker coatings having lower friction and negligible wear. However, under wet sliding, the coating's wear rate increased significantly due to softening of the rubbing surface caused by SBF lubrication that increase transfer film onto the counter body surface. Coating with optimal thickness of 74 μm demonstrated the lowest friction and wear under SBF lubrication due to its highest hardness and bonding strength. This study highlights the importance of controlling coating thickness in determining the performance of the CNTs/PEEK coatings for orthopedic implants. John Wiley and Sons Inc. 2023-11-05 Article PeerReviewed Abd. Halim, Zulhelmi Alif and Mat Yajid, M. A. and Mat Yajid, xAhmed. G. and Saud, S. N. and Abu Bakar, T. A. (2023) The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants. Journal of Applied Polymer Science, 140 (41). NA-NA. ISSN 0021-8995 http://dx.doi.org/10.1002/app.54531 DOI: 10.1002/app.54531
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Abd. Halim, Zulhelmi Alif
Mat Yajid, M. A.
Mat Yajid, xAhmed. G.
Saud, S. N.
Abu Bakar, T. A.
The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants.
description Electrophoretic deposition was used to deposit carbon nanotube/polyether ether ketone (CNTs/PEEK) composite coatings onto porous titanium-tantalum (Ti-30Ta) substrates at different PEEK concentrations (4.5, 6.0, and 7.5 mg/mL). Coatings were analyzed for thickness, porosity, surface roughness, microhardness and bonding strength, with higher PEEK concentrations producing thicker and more uniform coatings. However, optimal coating thickness showed highest bonding strength; lower and higher thickness led to decreased bonding strength. The tribological properties of the CNTs/PEEK coated Ti-30Ta samples of different thicknesses (50, 70, and 100 μm) were evaluated using ball-on-flat linear reciprocating sliding tests under dry and wet conditions using simulated body fluid (SBF) as a lubricant. The CNTs/PEEK coatings provided excellent tribological protection under dry friction, with thicker coatings having lower friction and negligible wear. However, under wet sliding, the coating's wear rate increased significantly due to softening of the rubbing surface caused by SBF lubrication that increase transfer film onto the counter body surface. Coating with optimal thickness of 74 μm demonstrated the lowest friction and wear under SBF lubrication due to its highest hardness and bonding strength. This study highlights the importance of controlling coating thickness in determining the performance of the CNTs/PEEK coatings for orthopedic implants.
format Article
author Abd. Halim, Zulhelmi Alif
Mat Yajid, M. A.
Mat Yajid, xAhmed. G.
Saud, S. N.
Abu Bakar, T. A.
author_facet Abd. Halim, Zulhelmi Alif
Mat Yajid, M. A.
Mat Yajid, xAhmed. G.
Saud, S. N.
Abu Bakar, T. A.
author_sort Abd. Halim, Zulhelmi Alif
title The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants.
title_short The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants.
title_full The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants.
title_fullStr The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants.
title_full_unstemmed The effect of CNTs/PEEK coating thickness on the friction and wear behavior of porous Ti-30Ta alloys for biomaterial implants.
title_sort effect of cnts/peek coating thickness on the friction and wear behavior of porous ti-30ta alloys for biomaterial implants.
publisher John Wiley and Sons Inc.
publishDate 2023
url http://eprints.utm.my/106275/
http://dx.doi.org/10.1002/app.54531
_version_ 1802977255079542784
score 13.211869

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