Physical properties of Au-Pt ceramic alloy after recasting / 华西口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the influences of recasting on the mechanical properties of Au-Pt ceramic alloy.</p><p><b>METHODS</b>Au-Pt ceramic alloy samples were prepared and recast for 3 times without adding any new Au-Pt ceramic alloy. The tensile strength, 0.2% yield strength, percentage of elongation, flexural strength, flexural modulus and Vickers hardness of each specimen were measured.</p><p><b>RESULTS</b>Being cast for different times, the Au-Pt ceramic alloy showed no significant differences on their tensile strength, 0.2% yield strength, percentage of elongation, flexural strength or Vickers hardness. The flexural modulus of the Au-Pt alloys being cast for 2 or 3 times was significantly higher than that of the alloys being cast for 1 time (P < 0.05). CONCLUSION Au-Pt ceramic alloy can be recast for 3 times at least, without any decrease in the mechanical properties.</p>