Despite the well known biocompatibility and bioactivity of synthetic hydroxyapatite (HA), its use, as structural biomaterial has been limited because of intrinsic low mechanical properties. In order to avoid this problem, metallic implants are commonly coated with a thin HA layers. Among the various techniques used to produce coatings on metals, the biomimetic process has gained increasing attention in the last years. In this work, a metallic substrate (Ti6Al4V) was coated using a variation of the traditional biomimetic method. The HA coatings were characterised by diffused reflectance spectroscopy (DRIFT) and scanning electron microscopy (SEM).416-4181658662Dhert, W.J.A., Plasma-sprayed coatings and hard-tissue compatibility (1992) A Comparative Study on Fluorapatite, Magnesiumwhitlockite and Hydroxyapatite, pp. 4-6. , Offsetdrukkerij Haveka B. U., AblasserdamJarcho, M., (1992) Dent. Clin. North Am., 36 (1), p. 19Fisher, G., (1986) Ceram. Bull., 65 (2), p. 283Abe, Y., Kokubo, T., Yamamuro, T., (1990) J. Mater. Sci. Mater. Med., 1, p. 233Lacefield, W.R., Hydroxyapatite coating (1993) An Introduction to Bioceramics. Advanced Series in Ceramics, 1, pp. 223-238. , L L Hench and J Wilson, Eds., World Scientific Publishing Co. Pte. Ltda., SingaporeKlee, W.E., Engel, G., (1970) Inorg. Nucl. Chem., 32, p. 1837Stoch, A., Jastrzebski, W., Brozek, A., Stoch, J., Szaranice, J., Trybalska, B., Kmita, G., (2000) J. Molecular Structure, 555, p. 375Kokubo, T., Kim, H.M., Miyaji, F., Takadama, H., Miyazaki, T., (1999) Composite: Part A: Applied Science and Manufacturing, 30, p. 405Hench, L.L., (1991) Ceramic Glasses and Glasses Ceramics in Biomaterials Science: An Introductory Text, , B D Ratuer and A S Hoffman, Eds., Academic Press, Orlando