Electrophoretic deposition of PVA coated hydroxyapatite on 316L stainless steel

Polyvinyl alcohol (PVA) coated hydroxyapatite was deposited onto a 316L stainless steel substrate by electrophoretic deposition. Deposition was carried out in a methanol suspension at pH 5.5 using a graphite rod as an anode. Parameters such as PVA concentration, deposition voltage and time were optimized to achieve a homogeneous, crack-free adhesive coating. Techniques such as X-ray diffraction and Fourier transform infrared spectroscopy were used to study the phase composition of the coated materials and the stability of hydroxyapatite in the presence of PVA. ► PVA coated HA was deposited onto a 316L steel by electrophoretic deposition. ► Deposition was carried out in a methanol suspension at pH 5.5. ► Parameters were optimized to achieve a homogeneous, crack-free adhesive coating. ► Various techniques were used to study the phase composition and the stability.