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

Optimization of mechanical and tribological properties of cera mic coatings for application in knee prosthesis
: Rahm, J.; Glien, W.; Kieselstein, E.; Kreyßig, K.; Sommer, J.-P.; Auerswald, E.; Kremling, U.

Materialprüfung 47 (2005), No.3, pp.112-117
ISSN: 0025-5300
Journal Article
Fraunhofer IZM ()

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.