Journal of the Japan Institute of Metals and Materials
Online ISSN : 1880-6880
Print ISSN : 0021-4876
ISSN-L : 0021-4876
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Volume 78, Issue 11
Displaying 1-4 of 4 articles from this issue
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Special Issue on Multiple Approach for Analysis of the Surface and Interface Phenomena
Overview
  • Introduction to Surface and Interface Analysis
    Masayasu Nagoshi
    2014 Volume 78 Issue 11 Pages 401-407
    Published: 2014
    Released on J-STAGE: November 01, 2014
    DOIhttps://doi.org/10.2320/jinstmet.JB201403
    JOURNAL FREE ACCESS
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      Surface and interface analysis techniques are reviewed mainly about electron microscopy and surface analysis methods. The principal of the techniques, fundamental and preferable way of using them, some examples, and future prospects of them are presented.
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  • Characterization of Oxide-Metal Interfaces with Atomic Level by Photoelectron Spectroscopy
    Michiko Yoshitake
    2014 Volume 78 Issue 11 Pages 408-414
    Published: 2014
    Released on J-STAGE: November 01, 2014
    DOIhttps://doi.org/10.2320/jinstmet.JB201401
    JOURNAL FREE ACCESS
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      At metal oxide (AO)-metal (M) interfaces, metal (M) atoms can make bonds with metal oxide through either oxygen (O) atoms or metal (A) atoms that composed of the oxide. Examples of the identification of an element at the interface in atomic level using photoelectron spectroscopy have been demonstrated for alumina, zinc oxide and cerium oxide. Software, which predicts interface bonding according to a method developed by the author, and which is open to public, is presented. It is demonstrated that the difference in the interface bonding species has great influence on the band offset, the energy difference between the Fermi level and the valence band in the band energy diagram. The observations of such difference in band offset using photoelectron spectroscopy are also provided.
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Review
Overview
  • Surface and Interfacial Analysis Using Electrochemical Impedance Measurement
    Hideki Katayama
    2014 Volume 78 Issue 11 Pages 419-425
    Published: 2014
    Released on J-STAGE: November 01, 2014
    DOIhttps://doi.org/10.2320/jinstmet.JB201402
    JOURNAL FREE ACCESS
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      Fundamentals of an electrochemical impedance measurement were reviewed. The impedance characteristics under charge transfer control and under diffusion control, and their equivalent circuits are described. Analytical method using the Nyquist plot and the Bode plot for typical impedance spectra was explained. In addition, a change in impedance behavior for CPE (constant phase element) parameter, which is often used in equivalent circuit modeling and data fitting of electrochemical impedance data, was represented. In the latter of this paper, research reports for degradation estimation of steel materials used for infrastructure using an electrochemical impedance measurement were provided. The degradation of organic coated steels, the structure of thermally sprayed coating exposed to outdoors for a long term, and the corrosion performance of reinforcing steel bars in concrete were estimated by electrochemical impedance method.
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