Xenogeneic bone-derived hydroxyapatite (HA) was coated on Ti-6Al-4V substrate using aerosol deposition (AD) system. HA precursor powder was derived from bovine bone for the deposition. In aerosol system, submicron particles of HA were mixed with a carrier gas to form an aerosol flow in the aerosol chamber. The aerosol flow was through a tube to a nozzle, and then ejected into a deposition chamber. The effect of the beam incident angle on the HA film formation was investigated. The incident angle of the beam was changed from 0 degrees to 60 degrees. Homogeneous HA film with the thickness of 1-2 mu m was fabricated by flattering of particles shape for the incident angle of 60 degrees. (c) 2008 Elsevier B. V. All rights reserved.