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concentrationOtani, Kyohei; Islam, M. S.*; Sakairi, Masatoshi*; Kaneko, Akira*
Surface and Interface Analysis, 51(12), p.1207 - 1213, 2019/12
Times Cited Count：1 Percentile：1.99(Chemistry, Physical)The corrosion morphology and composition of corrosion products of A3003 formed in model fresh water with different Zn concentrations were investigated by immersion tests combined with surface observations and analysis using an auger electron spectroscope (AES). The cross-sectional AES observations showed that the thickness of the corrosion product layer formed on A3003 decreases with increases in the Zn concentration of the model fresh water. A cross-sectional AES point analysis suggested that the corrosion products formed on the A3003 in the Zn containing model fresh water (Zn 
0.1 mM) have a multi-layer structure, and that the inner of Zn-rich layer would have high corrosion protective properties.
As and LiFeAs by X-ray PDF and XAFS analysesLi, S.*; Toyoda, Masayuki*; Kobayashi, Yoshiaki*; Ito, Masayuki*; Ikeuchi, Kazuhiko*; Yoneda, Yasuhiro; Otani, Akira*; Matsumura, Daiju; Asano, Shun*; Mizuki, Junichiro*; et al.
Physica C, 555, p.45 - 53, 2018/12
Times Cited Count：1 Percentile：4.99(Physics, Applied)
-dependence of local distortions in BaFeAs and LiFeAs by X-ray PDF and XAFS methods. Although PDF data exhibit anomaly at the structure transition temperature, EXAFS data exhibit no anomaly. Data supporting the local orthorhombicity at 300 K in the tetragonal phase for BaFeAs. Arguments on the origins of the 4-fold symmetry breaking in the ground average structure of the tetragonal phase.
Otani, Kyohei; Sakairi, Masatoshi*; Kaneko, Akira*
no journal, ,
The effects of metal cations on corrosion of A3003 aluminum alloy in model fresh water were investigated by electrochemical techniques and immersion tests. The electrochemical and immersion results showed that hardness of metal cation, X is not suitable as a corrosion indicator of A3003. A novel corrosion indicator is proposed, and it is shown that the novel indicator can estimate the corrosion rate of A3003 in fresh water.
