Shinku
Online ISSN : 1880-9413
Print ISSN : 0559-8516
ISSN-L : 0559-8516
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Volume 50, Issue 1
Displaying 1-16 of 16 articles from this issue
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Prefatory Note
Foreword
Reviews
Foreword
Reviews
Letter
  • Characterization of the Surface Oxide Layer Formed on a Titanium Alloy Material for Ultrahigh Vacuum
    Etsuhiro MUNEYAMA, Masatoshi TAKEDA, Atsuhiro KUNISHIGE, Hamazou NAKAG ...
    2007 Volume 50 Issue 1 Pages 53-56
    Published: 2007
    Released on J-STAGE: September 15, 2007
    DOIhttps://doi.org/10.3131/jvsj.50.53
    JOURNAL FREE ACCESS
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      The surface oxide layer of a titanium alloy treated by mechanochemical polishing (MCP) was characterized using a scanning electron microscope (SEM), transmission electron microscope (TEM), atomic force microscope (AFM), X-ray photoelectoron spectoroscopy (XPS), auger electoron spectoroscopy (AES) and secondary ion mass spectrometry (SIMS). The results showed that surface oxide layer was amorphous titanium oxide and had about 5 nm thickness. At the interface between surface oxide layer and substrate, there was a region of high hydrogen concentration. In the same region, the Ti-F chemical component was found. It seems that this interface layer acts as a barrier for the bulk hydrogen diffusion, and gives low hydrogen concentration at the surface layer resulting in the low outgassing property in the titanium materials.
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Technical Memorandum
Conference Reports
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