钛合金表面涂烧生物活性玻璃陶瓷涂层的性能与结构

MICROSTRUCTURE AND PROPERTY OF BIOACTIVE GLASS_CERAMIC COATING SINTERED ON THE SURFACE OF TITANIUM ALLOY

采用涂烧法在钛合金表面制备出结合强度高，化学稳定性好，防组织液渗透和生物相容性良好的复合生物玻璃陶瓷涂层．用ＸＲＤ，ＦＴ－ＩＲ等方法研究了涂层的组成、结构和性能．结果表明：底釉由玻璃相、ＦＡＰ和榍石晶相组成；多孔生物玻璃陶瓷涂层由玻璃相、ＦＡＰ和β－ＣａＳｉＯ３晶相组成；复合涂层能与骨组织产生骨性结合．

A composite of bioactive glass_ceramic coating having high adhesive strength, penetration resistance of tissue fluid, better chemical stability and biocompatibility was made on the surface of titanium alloy by sintering method. Composition, microstructure and property of the coating were studied respectively by XRD, TG-DTA, FT-IR, SEM and so on. The results show that underlayer glaze is composed of glass phase, FAP and sphene crystals, and porous bioactive glass_ceramic coating is composed of glass phase, FAP and β -CaSiO 3 crystals, a bone boning is gained between the composite coating and natural bone.