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Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy

Ta2O5 coatings containing 0, 3, 5 and 7 vol% multi-walled carbon nanotubes (CNTs) were deposited on Ti6Al4V substrates by atmospheric plasma spraying (APS). The addition of CNTs had no obvious effect on the surface morphology and roughness of the coatings, but increased the coating porosity. The coa...

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Main Authors: Lin, W. T., Lin, Z. W., Kuo, T. Y., Chien, C. S., Huang, J. W., Chung, Y. L., Chang, C. P., Ibrahim, Mahmoud Zakaria, Lee, H. T.
Format: Article
Published: Elsevier 2022
Subjects:
QC Physics
QD Chemistry
TJ Mechanical engineering and machinery
Online Access:http://eprints.um.edu.my/42960/
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spelling my.um.eprints.429602023-09-10T02:44:43Z http://eprints.um.edu.my/42960/ Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy Lin, W. T. Lin, Z. W. Kuo, T. Y. Chien, C. S. Huang, J. W. Chung, Y. L. Chang, C. P. Ibrahim, Mahmoud Zakaria Lee, H. T. QC Physics QD Chemistry TJ Mechanical engineering and machinery Ta2O5 coatings containing 0, 3, 5 and 7 vol% multi-walled carbon nanotubes (CNTs) were deposited on Ti6Al4V substrates by atmospheric plasma spraying (APS). The addition of CNTs had no obvious effect on the surface morphology and roughness of the coatings, but increased the coating porosity. The coatings consisted primarily of beta-Ta2O5 phase, a small amount of alpha-Ta2O5 , and minor C peaks corresponding to the CNTs. As the CNT content increased, the elastic modulus (E) and indentation fracture toughness also increased. However, the higher CNT content increased the coating porosity and reduced the microhardness. Following immersion in simulated body fluid (SBF) for 14 days, the surfaces of all the coatings were completely covered with hemispherical bone-like apatite. Furthermore, after incubation in osteoblast-like osteosarcoma MG-63 cell culture for 7 days, all of the coatings showed excellent cell attachment, growth and spreading. Overall, the present results show that the addition of CNTs to Ta2O5 raw powder improves the indentation fracture toughness of the resulting coatings without degrading their biological properties. Elsevier 2022-05 Article PeerReviewed Lin, W. T. and Lin, Z. W. and Kuo, T. Y. and Chien, C. S. and Huang, J. W. and Chung, Y. L. and Chang, C. P. and Ibrahim, Mahmoud Zakaria and Lee, H. T. (2022) Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy. Surface and Coatings Technology, 437. ISSN 0257-8972, DOI https://doi.org/10.1016/j.surfcoat.2022.128356 <https://doi.org/10.1016/j.surfcoat.2022.128356>. 10.1016/j.surfcoat.2022.128356
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
QD Chemistry
TJ Mechanical engineering and machinery
spellingShingle QC Physics
QD Chemistry
TJ Mechanical engineering and machinery
Lin, W. T.
Lin, Z. W.
Kuo, T. Y.
Chien, C. S.
Huang, J. W.
Chung, Y. L.
Chang, C. P.
Ibrahim, Mahmoud Zakaria
Lee, H. T.
Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy
description Ta2O5 coatings containing 0, 3, 5 and 7 vol% multi-walled carbon nanotubes (CNTs) were deposited on Ti6Al4V substrates by atmospheric plasma spraying (APS). The addition of CNTs had no obvious effect on the surface morphology and roughness of the coatings, but increased the coating porosity. The coatings consisted primarily of beta-Ta2O5 phase, a small amount of alpha-Ta2O5 , and minor C peaks corresponding to the CNTs. As the CNT content increased, the elastic modulus (E) and indentation fracture toughness also increased. However, the higher CNT content increased the coating porosity and reduced the microhardness. Following immersion in simulated body fluid (SBF) for 14 days, the surfaces of all the coatings were completely covered with hemispherical bone-like apatite. Furthermore, after incubation in osteoblast-like osteosarcoma MG-63 cell culture for 7 days, all of the coatings showed excellent cell attachment, growth and spreading. Overall, the present results show that the addition of CNTs to Ta2O5 raw powder improves the indentation fracture toughness of the resulting coatings without degrading their biological properties.
format Article
author Lin, W. T.
Lin, Z. W.
Kuo, T. Y.
Chien, C. S.
Huang, J. W.
Chung, Y. L.
Chang, C. P.
Ibrahim, Mahmoud Zakaria
Lee, H. T.
author_facet Lin, W. T.
Lin, Z. W.
Kuo, T. Y.
Chien, C. S.
Huang, J. W.
Chung, Y. L.
Chang, C. P.
Ibrahim, Mahmoud Zakaria
Lee, H. T.
author_sort Lin, W. T.
title Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy
title_short Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy
title_full Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy
title_fullStr Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy
title_full_unstemmed Mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on Ti6Al4V alloy
title_sort mechanical and biological properties of atmospheric plasma-sprayed carbon nanotube-reinforced tantalum pentoxide composite coatings on ti6al4v alloy
publisher Elsevier
publishDate 2022
url http://eprints.um.edu.my/42960/
_version_ 1778161685436039168
score 13.211869

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