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Lee, S.; Yoshikawa, Hideki; Matsui, Toshiya*
Materials Research Society Symposium Proceedings, Vol.1265, p.209 - 214, 2010/11
A corrosion experiment were performed for carbon steel contacted with iron reducing bacteria. After incubation for 41 days, biofilm and some corrosion products were observed and determined by SEM analysis. It is clear that Vivianite, which is considered as a protect material for iron corrosion, has been generated as an iron corrosion product with contribution of iron reducing bacteria from this experiment.
Yoshikawa, Hideki; Lee, S.*; Matsui, Toshiya*
Corrosion, 65(4), p.227 - 232, 2009/04
Times Cited Count:3 Percentile:32.25(Materials Science, Multidisciplinary)An iron archaeological artifact which was found at "Oda" castle after burial underground for about 400 years were collected by special sampling technique as a package with surround soil in order to avoid contact atmosphere and analyzed a mount of chemical components, microorganism and thickness of rust. The corrosion condition of the sample is considered as a slightly oxidizing condition from these data.
Matsui, Hiroya; Niunoya, Sumio; Nago, Makito*; Yamamoto, Toshiya*
Dai-42-Kai Jiban Kogaku Kenkyu Happyokai Happyo Koenshu (CD-ROM), p.157 - 158, 2007/07
no abstracts in English
Lee, S.; Morgos, A.*; Matsui, Toshiya*; Yoshikawa, Hideki
no journal, ,
Examine for the relationship between microbial activity and a corrosion product of iron artifacts were performed to obtain some information for diagnostic artifacts and the degradation of metallic material. The iron phosphate that is important for anti-corrosion coatin the iron metal is observed in the reaction of iron-reducing bacteria on carbon steel corrosion.
Lee, S.; Matsui, Toshiya*; Yoshikawa, Hideki
no journal, ,
no abstracts in English
Lee, S.*; Matsui, Toshiya*; Yoshikawa, Hideki
no journal, ,
no abstracts in English
Lee, S.*; Matsui, Toshiya*; Yoshikawa, Hideki
no journal, ,
no abstracts in English
Yoshikawa, Hideki; Mitsui, Seiichiro; Matsui, Toshiya*; Inada, Kenichi*
no journal, ,
Using iron artifacts excavated from Jugoroana rock-cut tombs in Hitachinaka City, non-destructive analyzes was performed and discussed on long-term corrosion data, as in a atmospheric condition, by comparison with some data of long-term corrosion in soil.
Mitsui, Seiichiro; Yoshikawa, Hideki; Matsui, Toshiya*; Kaneko, Makoto*; Nakamatsu, Yuki*; Utsunomiya, Satoshi*
no journal, ,
Engineered barrier system for geological disposal of high level nuclear waste in Japan consists of vitrified waste, metal overpack and clay buffer material. Although the overpack and the buffer material are designed to prevent the release of radionuclides from the vitrified waste, some experimental studies have shown that these components can promote glass dissolution. To gain insight in the long-term behavior of the vitrified waste at the glass-iron interface in the geological repository conditions, we studied sand contacted with iron cannon retrieved from Kaiyo Maru, a warship of the Tokugawa Shogunate that sank off the coast of Esashi in Hokkaido, 1868, as an archaeological analog. In this paper, we discuss type of corrosion and alteration products characterized by microanalyses, such as transmission electron microscope, and clogging of sand voids analyzed by a micro-focus X-ray computed tomography.