In this study, electrophoretic deposition (EPD) method was used for hydroxyapatite (HA) coating on titanium substrates. Chemically synthesized nanopowders and naturally derived submicron powders of HA were produced and used as coating materials before and after calcination. Obtained coatings were sintered at 1000 °C for 1 hour. Besides HA coating, two applications including TiO₂ were performed: HA/TiO₂ composite coating in the one hand, and TiO₂ inner coating layer between titanium substrate and HA coating in the other. Results showed that, plate-like shaped nanosized HA powders with aspect ratio 3:1 were produced by the acid-base method. Ensuing calcination altered particle size (slightly coarsening) and shape (nodular-like). Coatings obtained using calcinated powders produced through acid-base method were seen to be free of cracks before and after sintering.

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