Optimierung der mechanischen und tribologischen Eigenschaften keramischer Schichten Nutzen für die Kniegelenk-Endoprothetik

The optimization of mechanical and tribilogical properties of ceramic coatings is based on screening tests. There fore agglomerated powders of systems Al 2O 3/TiO 2 and Al 2O 3/ ZrO 2 were used. After plasmaspraying the requested quality of surface will be reached by grinding and polishing. The coating systems Al 2O 3(70%)/TiO 2 (30%) and Al 2O 3(57,5%)/ ZrO 2 (42,5%) are favorized, based on evaluation of tensile and tribological test results. The further optimization is focussed on improving the homogenization of morphology and adhesion.