Study of Resin-bonded Calcia Investment : Part 2. Effect of Titanium Content on the Dimensional Change of the Investment
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概要
- 論文の詳細を見る
In the present study, titanium powder was chosen as an expanding agent of an experimentally prepared resin-bonded calsia investment. The effect of Ti content on the dimensional change was investigated. In addition, the effects of the heating rate and heating temperature on the dimensional change of the investment were investigated during setting and after heating. The expansion increased with Ti content and the highest expansion (1.57%±0.58) was obtained at 10 mass% Ti. The highest expansion was obtained at 900℃ for 30 min heating and was independent of the heating rate. These findings mean that the titanium powder in the calcia investment oxidized sufficiently at that heating condition. It was found that the developed resin-bonded calcia investment was able to compensate for casting shrinkage of pure titanium by adding some Ti powder to the investment.
- 日本歯科理工学会の論文
著者
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Nakai Akira
日本歯科大学新潟歯学部 歯科理工学講座
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Nakai Akira
Department Of Biochemistry And Molecular Biology Yamaguchi University Graduate School Of Medicine
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Nakai Akira
Department Of Dental Materials Science School Of Dentistry At Niigata The Nippon Dental University
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Nakai Akira
Department of Applied Chemistry, Faculty of Engineering, Okayama University
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