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[Study of the mechanical properties of Co-Cr ceramic alloy after recasts]
Song Yang1, Hui Cheng, Xiu-Rong Li
1Dept. of Prosthodontics, School & Hospital of Stomatology, Fujian Medical University, Fuzhou 350002, China.
Objective:
To study the mechanical properties of Co-Cr ceramic alloy after recasts.
Methods:
Co-Cr ceramic alloy cast samples were prepared and recast for 3 times without adding any new Co-Cr ceramic alloy. The tensile strength, 0.2% yield strength, percentage of elongation, flexural strength, flexural modulus and Vickers hardness of each specimen were measured.
Results:
Being cast for different times, the Co-Cr ceramic alloy showed no significant differences on their tensile strength, 0.2% yield strength, percentage of elongation, flexural strength, flexural modulus and Vickers hardness.
Conclusion:
Co-Cr ceramic alloy can be recast for 3 times at least, without decrease of the mechanical properties.
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