Impact of sandblasting on the mechanical properties and aging resistance of alumina and zirconia based ceramics

摘要: Abstract Bioinert zirconia and alumina ceramic devices are widely used, both in orthopaedics dentistry. In order to improve their bonding with bone tissues or dental resin cements, surfaces often roughened at different scales. this work, we have investigated the effects of same sandblasting treatment on alumina, a zirconia-toughened focusing mechanical performance interplay between surface defects residual stresses. Additionally, explored impact hydrothermal aging two zirconia-containing materials. Residual stresses generated during were always predominant over but effect varied material: while they had weakening reinforced Finally, found that monoclinic grains sandblasted recrystallized into tetragonal nanograins after annealing led an increased resistance aging.