| Project/Area Number |
07807178
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
補綴理工系歯学
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| Research Institution | Tokyo Medical and Dental University |
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Principal Investigator |
DOI Hisashi Tokyo Medical and Dental University, Institute for Medical and Dental Engineering, Research associate, 医用器材研究所, 助手 (30251549)
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| Co-Investigator(Kenkyū-buntansha) |
KOBAYASHI Equo Tokyo Medical and Dental University, Institute for Medical and Dental Engineerin, 医用器材研究所, 助手 (40242268)
HAMANAKA Hitoshi Tokyo Medical and Dental University, Institute for Medical and Dental Engineerin, 医用器材研究所, 教授 (10013955)
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1997: ¥400,000 (Direct Cost: ¥400,000)
Fiscal Year 1996: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1995: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | Titanium alloy / mechanical properties / heat treatment / dental casting |
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| Research Abstract |
Titaniums are expected of utilities for biomaterials. Pure titanium transforms easy and that strength is low to use for dental materials. Due to applications of titanium for dental materials, titanium alloys were investigated. The components of investigated titanium alloys were Ti-Zr, Ti-Zr-Nb and Ti-Al-Nb. The highest hardness and strength were obtained at the composition of 50% Ti-50 %Zr (in at%). Additionally, it is confirmed that the Ti-Zr binary alloys showed superior corrosion resistance and biocompatibility. Ti-Zr based alloys containing small amounts of Nb were investigated in order to evaluate their possible application as a biomedical material. Nb, having a beta phase stabilizing effect fro titanium and zirconium, was chosen as a ternary element to control microstructure desirably. Ti-Al-Nb alloy was developed with replacement vanadium in Ti-6Al-4V alloy with niobium. The composition of this alloy is Ti-6%Al-7%Nb (in at%) and this alloy showed good mechanical properties and superior corrosion resistance.
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