2006•Journal of Oral Science ResearchRequires access
Effects of the Mold Temperature on the Castability of Ti-Nb-Zr-Sn Alloy for Dental Use.
Hao Yu-lin
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Abstract
Objective: The aim of this study was to investigate the influence of the mold temperature on the castability of Ti-Nb-Zr-Sn alloy and find out the reasonable mold temperature for dental casting.Methods: Net patterns were applied in this study.Ti-Nb-Zr-Sn alloy,pure titanium and Ti-6Al-4V alloy were casted respectively at three mold temperatures(room temperature,300 ℃,600 ℃).The castability value was obtained by counting the complete segment of the cast alloy grid.Results: The higher mold temperature,the higher castability of three titanium alloys.Ti-Nb-Zr-Sn alloy casting showed lower castability than pure titanium and Ti-6Al-4V alloy at the room temperature and 300 ℃.Ti-Nb-Zr-Sn alloy casting at the room temperature and 300 ℃showed significantly lower castability value than that at 600 ℃.Conclusion: In order to obtain higher castability of dental Ti-Nb-Zr-Sn alloy castings in clinic,the optimal mold temperature should be higher than 600℃.