ELECTRODEPOSITION AND CHARACTERIZATION OF HYDROXYAPATITE/CARBON NANOTUBES (HAp/CNTs) NANOCOMPOSITE ON 316L STAINLESS STEEL
Keywords:Hydoxyapatite (HAp), HAp/CNTs nanocomposite, electrodeposition, 316L SS
Hydroxyapatite/carbon nanotubes (HAp/CNTs) nanocomposite was successfully synthesized as a coating on 316L stainless steel (316L SS) by electrodeposition technique. The effects of scanning potential range, scanning rate, number of scans, and synthesis temperature were investigated. Fourier Transform Infrared Spectroscopy (FT-IR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and mechanical test were performed to characterise of the coatings. Suitable condition to synthesize HAp/CNTs/316L SS coatings is a scanning potential range from 0 to -1.65 V/SCE, a scanning rate of 5 mV/s, 5 scans, an electrolyte temperature of 45 oC and a CNTs concentration of 0.5 g/L in the electrolyte solution. At the condition, obtained nanocomposite coatings are composed of HAp and CNTs with the coating thickness is equal to 6.9 µm. The presence of 0.5 g/L of CNTs in the electrolyte solution, the solubility of obtained coatings is lower than that of pure HAp coating. In addition, the hardness of the HAp/CNTs coatings reaches 5.6 GPa, which was nearly 25 % higher than that of pure HAp.
Authors who publish with Vietnam Journal of Science and Technology agree with the following terms:
- The manuscript is not under consideration for publication elsewhere. When a manuscript is accepted for publication, the author agrees to automatic transfer of the copyright to the editorial office.
- The manuscript should not be published elsewhere in any language without the consent of the copyright holders. Authors have the right to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal’s published version of their work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are encouraged to post their work online (e.g., in institutional repositories or on their websites) prior to or during the submission process, as it can lead to productive exchanges or/and greater number of citation to the to-be-published work (See The Effect of Open Access).