Kinetics and Mechamism of the High-Temperature Selenidization of Titanium

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Author(s)

    • NARUKE Haruo
    • Department of Applied Chemistry, Faculty of Engineering, Chiba University
    • YAMADA Kenji
    • Department of Applied Chemistry, Faculty of Engineering, Chiba University
    • SASAKI Yoshinori
    • Department of Applied Chemistry, Faculty of Engineering, Chiba University

Abstract

A titanium sheet was selenidized in selenium vapor of 1.33—13.33 kPa at 823—973 K by means of a sealed-tube method. X-Ray diffraction patterns and an electron-probe microanalysis of the product films showed the layer to comprise only TiSe<sub>2</sub>. Since the selenidization obeyed a parabolic rate law under all of the conditions employed, the rate-determining step was a diffusion process. The parabolic rate constant (<i>K</i><sub>p</sub>) could be expressed as a function of the absolute temperature, and was approximately proportional to the partial pressure of Se<sub>2</sub>. A marker experiment indicated that selenium was the component which diffused in the product film.

Journal

  • Bulletin of the Chemical Society of Japan

    Bulletin of the Chemical Society of Japan 68(7), 1941-1945, 1995-07-15

    The Chemical Society of Japan

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Codes

  • NII Article ID (NAID)
    10008891828
  • NII NACSIS-CAT ID (NCID)
    AA00580132
  • Text Lang
    ENG
  • Article Type
    ART
  • ISSN
    00092673
  • Data Source
    CJP  J-STAGE 
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