Bioactive Carbonate−Hydroxyapatite Coatings Deposited onto Ti6Al4V Substrate

• Published in: Chemistry of materials Vol. 16; no. 8; pp. 1451 - 1455
• Main Authors: Hijón, N, Cabañas, M. V, Izquierdo-Barba, I, Vallet-Regí, M
• Format: Journal Article
• Language: English
• Published: Washington, DC American Chemical Society 20.04.2004
• Subjects: Applied sciences; Chemistry; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Condensed matter: structure, mechanical and thermal properties; Exact sciences and technology; General and physical chemistry; Physicochemistry of polymers; Physics; Polymers; Inorganic compounds; Organic compounds
• ISSN: 0897-4756; 1520-5002
• DOI: 10.1021/cm031164s

Calcium hydroxyapatite coatings showing bioactive properties have been deposited by a sol−gel dipping method onto Ti6Al4V alloy substrates from aqueous precursor sols. To obtain homogeneous and monophasic hydroxyapatite coatings, the aging time and temperature of the sol were, fundamentally, the variables studied. The pH measurement was a good tool to evaluate the best conditions of the sols to deposit these coatings. SEM and SFM techniques show that the coatings deposited are dense and homogeneous with a low roughness, which depends on the sol viscosity and the film thickness.