Low-temperature synthesis of group 4-8 transition metal carbides using lithium or sodium

    研究成果: Article査読

    抄録

    TiC0.7 and Mo2C powders were prepared by heating Ti-C and Mo-C compacts and Li or Na at temperatures of 800-900 °pC for 12 h in an Ar atmosphere. These temperatures were 200-350 °C lower than those at which Ti and Mo fully reacted with C without the addition of Li or Na. The grain size of the TiC0.7 and Mo2C powders was close to that of the source metal powders. In the Tm-C systems (7m = Zr, V, Nb, Ta, Cr, and Mn), the addition of Li or Na to Tm-C compacts enhanced the formation of ZrC, VC, NbC, TaC, Cr7C3, and Mn23C6 at 800 °C. On the other hand, no effect was observed for the formation of carbides in the systems with Tm = Fe, Ru, Hf, W, and Re.

    本文言語English
    ページ(範囲)652-660
    ページ数9
    ジャーナルFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
    59
    11
    DOI
    出版ステータスPublished - 2012 11月 1

    ASJC Scopus subject areas

    • 機械工学
    • 産業および生産工学
    • 金属および合金
    • 材料化学

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