| Project/Area Number |
16206073
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Material processing/treatments
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| Research Institution | Osaka University |
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Principal Investigator |
NOGI Kiyoshi Osaka University, Joining and Welding Rematch Institute, Professor (40029335)
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| Co-Investigator(Kenkyū-buntansha) |
MIYAMOTO Yoshinari Osaka University, Joining and Welding Research Institute, Professor (60107084)
NAITO Makio Osaka University, Joining and Welding Research Institute, Professor (40346135)
FUJII Hidetoshi Osaka University, Joining and Welding Research Institute, Associate Professor (00247230)
ABE Hiroya Osaka University, Joining and Welding Research Institute, Associate Professor (50346136)
MATSUMOTO Taihei Osaka University, Joining and Welding Research Institute, Assistant Professor (30294135)
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| Project Period (FY) |
2004 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥50,050,000 (Direct Cost: ¥38,500,000、Indirect Cost: ¥11,550,000)
Fiscal Year 2007: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000)
Fiscal Year 2006: ¥8,840,000 (Direct Cost: ¥6,800,000、Indirect Cost: ¥2,040,000)
Fiscal Year 2005: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2004: ¥19,760,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥4,560,000)
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| Keywords | carbon nano-fiber / composite material / contact angle / Isurface tension / Isessile drop method / carbon nano-tube / wetting / 毛細管現象 / Cu / 炭素 / 垂直配向膜 / ポリマー / AFM / 表面被覆 |
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| Research Abstract |
Wetting phenomena of carbon by some molten alloys and molten polymers were investigated. Wettability of carbon by molten Cu was controlled adding alloy metal to Cu. When Si is added much enough to form SiC interface layer; the wettability of carbon becomes better and the contact angle between carbon and molten Cu-Si alloy is about 40°. It is also observed that the molten Cu-Si alloy infiltrated into a porous carbon.
Wetting of vertically aligned CNTs that look like thin film on substrate was investigated. CNTs were vertically grown on a quarts substrate by thermal CVD technique. CNTs showed good wettability with polyethylene glycol and polyacetal, and poor wettability with water. When the CNTs adhere to the substrate strongly using Ti, Si, and Fe as catalysts, CNTs remain on the substrate after the wetting test CNT/ polyacetal composite were obtained after the solidification and it showed well aligned CNTs inside.
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