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[Study of the mechanical properties of CP Ti ceramic alloy after recasts]
Song Yang1, Hui Cheng, Xiu-rong Li
1Department of Prosthodontics,Affiliated Stomatology Hospital of Fujian Medical University. Fuzhou 350002,China.E-mail:234777953@qq.com.
Purpose:
To investigate the influences of repeated casting on the mechanical properties of CP Ti ceramic alloy.
Methods:
CP Ti ceramic alloy samples were prepared and recast 3 times without adding any new CP Ti ceramic alloy. The physical properties of each specimen were measured. SPPPSS13.0 software package was used for statistical analysis.
Results:
No significant difference was found on the flexural strength of the CP Ti ceramic alloys that had been cast 2 or 3 times, compared with that of the alloys being cast only 1 time (P>0.05). However, the flexural modulus, tensile strength, 0.2% yield strength and surface microhardness of the CP Ti alloys being cast 2 or 3 times were significantly higher than those of the alloys being cast only 1 time (P<0.05). Elongation of the CP Ti alloys being cast 2 or 3 times was significantly lower than that of the alloys being cast only 1 time (P<0.05).
Conclusions:
Recasting may cause decreases in tensile properties of CP Ti ceramic alloy.
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