This study concerns with coating of hydroxyapatite–silicon composite on NiTi using a combination
of electrophoretic deposition and reactive bonding. Hydroxyapatite and silicon were ball milled to
join before electrophoretic deposition. The characterisation of samples was performed by
scanning electron microscope (SEM) and X-ray diffraction analyses. Also Fourier transform
infrared spectroscopy was used to determine the functional groups. Results show that ball milling
yields homogeneous codeposition of hydroxyapatite and silicon particles. SEM images of the
composite reveal a uniform and dense coating, because of the presence of silicon as a reactive
bonding agent, as well as formation of SiO2, CaSiO3 and Ca3SiO5 during sintering.