TiC基サーメットの高温酸化スケール

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  • 西 義
    防衛庁技術研究本部第一研究所

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タイトル別名
  • Scales Formed on TiC-Base Cermets at High-Temperatures
  • TiCキ サーメット ノ コウオン サンカ スケール

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抄録

Scales formed on TiC-Ni-Cr-Co, TiC-(Ti, Nb, Ta)C-Ni-Mo and TiC-(Ti, Nb, Ta) C-Ni-Mo-Al cermets at temperatures between 850° and 1350°C, were investigated by X-ray and electron diffraction methods. The following results were obtained. (1) TiO2 and NiOTiO2 or (Ni,Co)OTiO2 were formed in the scales of these alloys. The growth rate of these titanates increased at 1000°C, and that of TiO2 increased considerably at higher temperatures. (2) A double oxide, probably (Nb, Ta)2O5·TiO2, was observed on the alloy containing carbide TiC-(Ti, Nb, Ta)C, above 1200°C. (3) On the alloy containing the binder metal Ni-Mo, considerable formation of NiO was also observed, and that of NiOAl2O3 and α-Al2O3 was observed on the alloy containing the binder metal Ni-Mo-Al.

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 26 (5), 329-333, 1962

    公益社団法人 日本金属学会

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