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.
Full text not available from this repository.Abstract
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.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Science and Technology, Taiwan (MOST 108-2221-E-218-09-), Electro-Optics Research Division of National Chung-Shan Institute of Science and Technology, Taiwan |
| Uncontrolled Keywords: | Atmospheric plasma spraying (APS); Multi-walled carbon nanotubes (CNT); Ti6Al4V alloy; Biological property; Indentation fracture toughness; Tantalum pentoxide (Ta2O5) |
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 10 Sep 2023 02:44 |
| Last Modified: | 10 Sep 2023 02:44 |
| URI: | http://eprints.um.edu.my/id/eprint/42960 |
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