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Rotary powder bed chemical vapour deposition of titanium nitride on spherical iron powder

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Abstract

Titanium nitride (TiN) was coated on to spherical iron powder by the rotary powder bed chemical vapour deposition technique using a reactant gas of the TiCl4-N2-H2 system. The dispersibility of the coated powder was significantly improved by the adsorption of the reactant gas on to the rotating particles during raising the temperature. Polycrystalline TiN film, having a columnar structure of a few micrometres was coated on to the iron powder, typically at a deposition temperature of 1000° C and at a treatment time of 80 min. The TiN-coated iron powder showed an oxidation resistance up to about 650° C.

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Authors and Affiliations

  1. Synthetic Crystal Research Laboratory, Faculty of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464, Nagoya, Japan

    Hideaki Itoh, Kenji Hattori & Shigeharu Naka

Authors
  1. Hideaki Itoh
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  2. Kenji Hattori
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  3. Shigeharu Naka
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Itoh, H., Hattori, K. & Naka, S. Rotary powder bed chemical vapour deposition of titanium nitride on spherical iron powder. J Mater Sci 24, 3643–3646 (1989). https://doi.org/10.1007/BF02385751

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  • DOI: https://doi.org/10.1007/BF02385751

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