Bioactive glass/ZrO2 composites for orthopaedic applications

摘要: Binary biocomposites were realized by combining yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) with a bioactive glass matrix. Few works are available regarding composites containing and relatively high content of because the resulting samples usually biocompatible but not after thermal treatment. In present research, promising properties new BG_Ca–K glass, its low tendency to crystallize apatite-forming ability, allowed us sinter at temperature excellent effects in terms bioactivity. addition, it was possible benefit from good mechanical behaviour Y-TZP, thus obtaining microhardness values that among highest reported literature. After detailed analysis composite powders, sintered bodies fully characterized means x-ray diffraction, SEM equipped EDS, density measurements, volumetric shrinkage determination, testing vitro evaluation simulated body fluid (SBF) solution. According experimental results, presence Y-TZP improved performance. Meanwhile, which mainly preserved amorphous structure sintering, provided ability SBF.