Bonding Behavior and Formation of Hydroxyapatite of Fluoride Containing Bioactive Glass Coated on Alumina

초록

Fluoride containing bioactive glasses with various composition were coated on a dense alumina substrate to enhance the mechanical property of the bioactive glass. The bonding behavior between glass and alumina depends on the glass composition and the firing temperature. This behavior is related to the amount of alumina diffused into glass layer during firing. The Hydroxyapatite formation in a tris-buffer solution is easier on a bioactive glass layer devitrified into wollastonite(CaSiO₃)than that into Na₂CaSi₃O₈