A16 Can we prepare amorphous iron by sonochemistry?

DOI
  • Enomoto Naoya
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • Hirata Shingo
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • Inada Miki
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University
  • Hayashi Katsuro
    Department of Applied Chemistry, Faculty of Engineering, Kyushu University

Bibliographic Information

Other Title
  • A16 ソノケミストリーでアモルファス鉄は作れるか(口頭発表)

Description

In general, a rapid quenching is required to obtain an amorphous metal. It is known that an intensive ultrasonication generates a very high temperature within cavitation bubbles in a very short moment, which enables a rapid quenching process in a liquid phase synthesis. In this study, the sonochemically-derived "amorphous iron" from Fe(CO)_5 was carefully examined by XRD, TEM, TG-DTA. The product was found to be an amorphous containing a certain amount (〜15%) of organics that can be removed by heating in an nitrogen flow. After annealed in the inert atmosphere at 600℃, cooled down to room temperature, and then exposed in air (oxygen), the sample showed a strong exotherm accompanied by a weight gain. This is due to oxidation of fine metallic iron. Experimental operations of such a reactive material are examined.

Journal

Keywords

Details 詳細情報について

  • CRID
    1390001206051233280
  • NII Article ID
    110010013704
  • DOI
    10.20577/pamjss.23.0_103
  • ISSN
    24241512
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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