Investigation of the effect of shot blasting on the surface properties of the HA coatings processed by the EPD method
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Date
2022
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Abstract
316L stainless steel implant material surfaces shot blasted with glass beads underwent hydroxyapatite (HA) coating process by electrophoretic deposition method (EPD). The mechanical and metallographic test results of HA coatings applied to the shot blasted and sanded substrates have been discussed. The sanded process was carried out with 320 Grit SiC sandpaper. Shot blasted process was carried out in a vacuum shot blasting machine at 5 bar pressure with glass beads. Ethanol was used as a solvent during the coating process. The coating solution was prepared by mixing ethanol, HA, PVA, and N, N-Dimethylformamide chemicals in specific ratios to have a steady suspension. Regarding tests conducted on HA coatings, it was revealed that shot blasted surfaces had better results when compared to those of sanded surfaces. Hopefully, this new process for coatings will be a new impression for future studies. © 2022 Institute of Materials and Machine Mechanics, Slovak Academy of Sciences. All rights reserved.