Internal Friction of Some Ceria Stabilized Zirconia Ceramics

Abstract

The internal friction of some ceria stabilized zirconia ceramics were measured in the temperature range of 30-450°C in air using two method, piezoelectric resonance method and forced torsion method. The internal friction was observed for 12%CeO₂ doped ZrO₂ which was reduced in flowing hydrogen. The doping of CeO₂ to cubic ZrO₂-Y₂O₃ suppressed the amplitude of internal friction. The result suggested the lowing effect of CeO₂ to the mobility of oxygen in cubic Y₂O₃-doped zirconia ceramics.