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Abe, Hiroshi; Shimomura, Takuya; Tokuhira, Shinnosuke*; Shimada, Yukihiro*; Takenaka, Yusuke*; Furuyama, Yuta*; Nishimura, Akihiko; Uchida, Hirohisa*; Daido, Hiroyuki; Oshima, Takeshi
Proceedings of 7th International Congress on Laser Advanced Materials Processing (LAMP 2015) (Internet), 4 Pages, 2015/08
A short pulse laser (the nanosecond and femtosecond) was applied to hydrogen absorbing alloys surface layer, and a surface modification experiment was put into effective to aim at improvement of hydrogen adsorption functionally. It was investigated about correlation between an initial hydrogen absorption reaction rate of hydrogen alloys and a laser irradiation in this research. The laser irradiation condition was done with pulse width 100 fsec and energy 0.2 - 3.4 mJ/pulse. It blazed down on hydrogen absorbing alloys (LaNi
Al
) and changed local order in the surface. As a result, the initial hydrogen absorption reaction rate was 1.5 - 3.0 times as fast as a irradiated sample, and the result and laser irradiated sample found out that a hydrogen absorption function improves. A laser irradiation can conclude to be effective in surface modification of the hydrogen storage materials.
SrCaCuO
single crystals by Kr
-ion irradiation followed by thermal annealingOgikubo, Koji*; Uchida, Yukihiro*; Terai, Takayuki*; Yamaguchi, Kenji*; Yamawaki, Michio*; Hayashi, Kimio
Tokyo Daigaku Kogakubu Sogo Shikenjo Nempo, 59, p.91 - 95, 2000/12
no abstracts in English
Yamashita, Takuya; Nishimura, Akihiko; Tsuchida, Noboru; Yamaguchi, Toshihiko; Oka, Kiyoshi; Fujiki, Kazunari*; Shimada, Yukihiro
no journal, ,
The preservation techniques of safety research on "Monju" and the next generation Fast Breeder Reactors have been exhibited. The exhibition consists of (1) EMAT, (2) ECT, (3) Laser Processing Head. Both (1) and (2) are the checking techniques for the cracks on nuclear power plants, while (3) is the repairing technique for the heat exchanger. In 2009, these three techniques will have been integrated to be a new probing system. The hybrid optical fiber has been involved in (3), which the project "photo-Medical Valley in JAEA-KANSAI are now developing as a fiber surgery device.
Abe, Hiroshi; Tokuhira, Shinnosuke*; Shimomura, Takuya; Shimada, Yukihiro*; Takenaka, Yusuke*; Furuyama, Yuta*; Nishimura, Akihiko; Daido, Hiroyuki; Uchida, Hirohisa*; Oshima, Takeshi
no journal, ,
no abstracts in English