Physico-chemistry of AP40 biological glass deposited by plasma spray on Ti/6Al/4V substrate

摘要

Bioactive glasses promise several advantages in orthopaedic applications, in particular as coating material of metallic substrates. The bioactivity of the glasses is linked to their capability of producing an intense effect on bone tissue through the formation of a surface reaction layer. In this work the AP40 bioactive glass-ceramic was deposited by plasma spray on sand-blasted Ti-6Al-4V substrates. In order to investigate the bone-bonding mechanism of this glassy material, a study of the surface structural changes of the deposited layer after exposure to simulated body fluid (SBF) is reported.