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2017-0223-07
Manufacturing Technology
posted:2017/02/23

Healing of Fatigue Crack in the Metallic Materials by Heat Treatment

HOSOI, Atsushi Associate Professor (Faculty of Science and Engineering School of Fundamental Science and Engineering)
collaborative researchers:藤田 耕平 , KAWADA, Hiroyuki Professor
● Implementation of fatigue crack healing of 90%● Implementation of static tensile strength of 75%● Fatigue crack healing due to elimination of oxide film by vacuum heating, plasticity-induced crack closure and atomic diffusion.
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2017-0223-06
Manufacturing Technology
posted:2017/02/23

Direct Bonding of Dissimilar Materials Having 3D Nanostructured Interfaces

HOSOI, Atsushi Associate Professor (Faculty of Science and Engineering School of Fundamental Science and Engineering)
collaborative researchers:阿部 暉 , KAWADA, Hiroyuki Professor
● Fabrication of nanospike structure (NSS) on aluminum surfaces● Direct joining of CFRTP and Al by hotpress● Improvement of adhesive strength by silane-coupling treatment
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1551
Social Infrastructure
posted:2016/03/18
特開2016-16499

金属き裂の自己治癒方法

HOSOI, Atsushi Associate Professor (Faculty of Science and Engineering School of Fundamental Science and Engineering)
本技術は、金属を真空中で加熱すると、ある一定の温度で酸化被膜が消失することに着目し、き裂表面の酸化被膜が消失した状態で、急冷することにより材料内部に生じる熱圧縮応力を付与させて、き裂を閉口させる。
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2016-0204-01
Nanotechnology / Materials
posted:2016/02/04

Fabrication of carbon nanotube yarn with high functionality

金 太成 (理工学術院 機械科学・航空学科)
collaborative researchers:酒井 貴広 , HOSOI, Atsushi Associate Professor , KAWADA, Hiroyuki Professor
● CNT yarn was drawn from vertically aligned CNT array● CNT composite yarn was developed by electrolytic plating● Controlling of plating by changing plating condition● Superior electrical conductivity (2.14×107 S/m)
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