Search Results - "Miyauchi, Naoya"

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  1. 1

    Model of local hydrogen permeability in stainless steel with two coexisting structures by Itakura, Akiko N., Miyauchi, Naoya, Murase, Yoshiharu, Yakabe, Taro, Kitajima, Masahiro, Aoyagi, Satoka

    Published in Scientific reports (20-04-2021)
    “…The dynamics of hydrogen in metals with mixed grain structure is not well understood at a microscopic scale. One of the biggest issues facing the hydrogen…”
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    Journal Article
  2. 2

    2-step reaction kinetics for hydrogen absorption into bulk material via dissociative adsorption on the surface by Yakabe, Taro, Imamura, Gaku, Yoshikawa, Genki, Miyauchi, Naoya, Kitajima, Masahiro, Itakura, Akiko N.

    Published in Scientific reports (22-09-2021)
    “…We have demonstrated that the process of hydrogen absorption into a solid experimentally follows a Langmuir-type (hyperbolic) function instead of Sieverts law…”
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    Journal Article
  3. 3

    Evaluation of Surface Damage of Pd Using Cross-Sectional Electron Backscatter Diffraction Analysis by Murase, Yoshiharu, Miyauchi, Naoya, Itakura, Akiko, Katayama, Hideki

    Published in MATERIALS TRANSACTIONS (01-01-2021)
    “…Surface damage induced by mechanical polishing of cold-rolled and annealed Pd specimens was examined by cross-sectional electron backscatter diffraction (EBSD)…”
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    Journal Article
  4. 4

    Classification of EBSD Kikuchi Patterns for Stainless Steel by Unsupervised Learning Methods to Investigate Grain Boundaries by Aoyagi, Satoka, Hayashi, Daisuke, Murase, Yoshiharu, Miyauchi, Naoya, Itakura, Akiko N.

    “…Electron backscatter diffraction (EBSD) indexing based on Kikuchi diffraction patterns, which indicate the types and orientation of the crystal lattice, is…”
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    Journal Article
  5. 5

    Visualization of local hydrogen diffusion in stainless steel using time resolved electron stimulated desorption by Miyauchi, Naoya, Iwasawa, Tomoya, Murase, Yoshiharu, Yakabe, Taro, Kitajima, Masahiro, Takagi, Shoji, Akiyama, Tomomi, Aoyagi, Satoka, Itakura, Akiko N.

    Published in Applied surface science (15-10-2020)
    “…We compared SEM image and permeated hydrogen map (in 65 h and found the relation of hydrogen counts and the brightness of the grains in SEM picture. We…”
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    Journal Article
  6. 6

    Visualization and characterization of localized outgassing position on surface-treated specimens: Chromium oxide layer on stainless steel by Miyauchi, Naoya, Iwasawa, Tomoya, Yakabe, Taro, Tosa, Masahiro, Shindo, Toyohiko, Takagi, Shoji, Itakura, Akiko N.

    Published in Applied surface science (30-10-2019)
    “…Hydrogen outgassing from a metal surface and a coated metal surface was visualized by two-dimensional mapping of hydrogen ions desorbed upon scanning electron…”
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  7. 7

    Microcrystal delivery by pulsed liquid droplet for serial femtosecond crystallography by Mafuné, Fumitaka, Miyajima, Ken, Tono, Kensuke, Takeda, Yoshihiro, Kohno, Jun-ya, Miyauchi, Naoya, Kobayashi, Jun, Joti, Yasumasa, Nango, Eriko, Iwata, So, Yabashi, Makina

    “…A liquid‐droplet injector has been developed that delivers pristine microcrystals to an X‐ray irradiation area for conducting serial femtosecond…”
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    Journal Article
  8. 8
  9. 9

    Apparatus design of operando hydrogen microscope for visualization of time-dependent distribution of hydrogen by Miyauchi, Naoya, Yakabe, Taro, Murase, Yoshiharu, Kitajima, Masahiro, Takagi, Shoji, Itakura, Akiko N.

    “…The operando hydrogen microscope is an original apparatus that has been developed to visualize the time-dependent permeation of hydrogen through a sample. This…”
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  10. 10

    Visualizing micro leakage position by dynamic measurement in operando hydrogen microscope by Itakura, Akiko N., Miyauchi, Naoya, Kitajima, Masahiro, Yakabe, Taro, Yoshida, Hajime

    Published in Vacuum (01-10-2024)
    “…We developed an operando hydrogen microscope (OHM) to determine where in materials hydrogen is trapped and causes embrittlement, and the location of hydrogen…”
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    Journal Article
  11. 11

    Evaluation of Surface Damage of Pd Using Cross-Sectional Electron Backscatter Diffraction Analysis by Murase, Yoshiharu, Miyauchi, Naoya, Itakura, Akiko, Katayama, Hideki

    Published in MATERIALS TRANSACTIONS (2020)
    “…Surface damage induced by mechanical polishing of cold-rolled and annealed Pd specimens was examined by cross-sectional electron backscatter diffraction (EBSD)…”
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    Journal Article
  12. 12

    Classification of EBSD Kikuchi Patterns for Stainless Steel by Unsupervised Learning Methods to Investigate Grain Boundaries by Aoyagi, Satoka, Hayashi, Daisuke, Murase, Yoshiharu, Miyauchi, Naoya, Itakura, Akiko N.

    “…Electron backscatter diffraction (EBSD) indexing based on Kikuchi diffraction patterns, which indicate the types and orientation of the crystal lattice, is…”
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    Journal Article
  13. 13

    2D mapping of hydrogen permeation from a stainless steel membrane by Miyauchi, Naoya, Hirata, Kenichirou, Murase, Yoshiharu, Sakaue, Hiroyuki A., Yakabe, Taro, Itakura, Akiko N., Gotoh, Tetsuji, Takagi, Shoji

    Published in Scripta materialia (01-02-2018)
    “…Hydrogen permeation from a metal surface was visualized by two-dimensional mapping of hydrogen ion desorbed by scanning electron beam irradiation. The sample…”
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    Journal Article