| Project/Area Number |
11650726
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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 |
Structural/Functional materials
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| Research Institution | Aichi Institute of Technology |
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Principal Investigator |
TAKAGI Makoto Aichi Institute of Technology, Department of Mechanical Engineering, Associate Professor, 工学部, 助教授 (40288428)
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| Co-Investigator(Kenkyū-buntansha) |
MATSUMURO Akihito Nagoya University, Department of Micro System Engineering, Associate Professor, 工学部, 助教授 (80173889)
IMURA Toru Aichi Institute of Technology, Department of Mechanical Engineering, Guest Professor, 工学部, 客員教授 (50022968)
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| Project Period (FY) |
1999 – 2000
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| Project Status |
Completed (Fiscal Year 2000)
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| Budget Amount *help |
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2000: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1999: ¥1,900,000 (Direct Cost: ¥1,900,000)
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| Keywords | nanocrystalline material / metallic glass / non-equilibrium material / tribology / micromachine / micro-tribology |
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| Research Abstract |
(1) Study on tribology of nanocrystalline materials and metallic glasses
Nanocrystalline Al-Ti-Fe-Cr alloy composites containing 5vol% SiC particles, Zr-based metallic glass and its composite containing 15vol% ZrC particles exhibited a good wear resistance compared with the conventional high-strength aluminum alloys. It is considered that this good wear resistance is caused by a high hardness of the nanocrystalline or amorphous phases.
(2) Study on superplasticity of metallic glasses
Pt-based metallic glass with a wide supercooled liquid region exhibited high-strain-rate superplasticity with more than 1000% elongation at a temperature of supercooled liquid region. This good deformability is caused by the viscous flow of the supercooled liquid.
(3) Mechanical properties of CN films prepared by Ion-beam-assisted deposition
Carbon nitride (CN) films prepared under a condition of Ar/N_2=1.0 by using Ion-beam-assisted deposition had a low friction coefficient and a good wear resistance. In the case of using an aluminum alloy or a high-carbon chromium steel as the substrate material, a good bonding between CN film and the substrate material was obtained by forming a carbon film as an intermediate layer between two materials.
(4) Study on micro-tribology by using atomic force microscope (AFM)
In the case of friction tests under a load more than 1μN (force) by using AFM, wear traces appeared in the surface of Si single crystals. The depth of the wear traces increased with increasing the load. It is considered that most of the wear loss was caused by the appearance of the worn powder.
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