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Tsuzuki, Tatsuya*; Mitamura, Naoki*; Amamoto, Ippei
Mirai Zairyo, 12(10), p.43 - 47, 2012/10
no abstracts in English
Nagaishi, Ryuji
Mirai Zairyo, 5(12), p.44 - 49, 2005/12
Hexavalent chromium has been widely used as industrial resources while it is a poison causing cancer towards human beings. "Radiation" such as electron beam and 
ray, and "solid oxide" such as silica and alumina are keywords to treat the toxic chromium and to recycle the treated non-toxic chromium. A novel method for the treatment developed in our group is reviewed in this report, where appearance of a novel function of usual solid materials under radiation, and recovery of the treated chromium as useful materials are also mentioned.
Saito, Kyoichi*; Asai, Shiho
Mirai Zairyo, 5(12), p.38 - 42, 2005/12
no abstracts in English
SiO
glass made by a method for containerless supercooled-liquid-phase processing at high temperaturesKohara, Shinji*; Suzuya, Kentaro; Takeuchi, Ken*
Mirai Zairyo, 5(4), p.28 - 33, 2005/04
We succeeded in producing highly pure glass made of "forsterite," contained in upper mantle of the Earth and meteorites. Although ordinary glass is made of silica network structure, this glass has an unsymmetrical network structure of magnesium oxide polyhedrons, which is deemed to destroy the silica network structure. We produced glass with extremely rare impurities by melting forsterite while floating it with inert gas and sound waves and then quenching it while holding it in an approximate microgravity condition equivalent to space. Development of a new optical fiber and improvement and cost reduction of operating equipment, such as operation laser, because high-purity glass can be produced using materials, which has been deemed to be appropriate.
