Fabrication of TiB2-(Fe-Al) Cermets by Short Time Pulsed Current Sintering

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  • Nakayama Hiroyuki
    National Institute of Advanced Industrial Science and Technology, Material Research Institute for Sustainable Development
  • Kobayashi Keizo
    National Institute of Advanced Industrial Science and Technology, Material Research Institute for Sustainable Development
  • Ozaki Kimihiro
    National Institute of Advanced Industrial Science and Technology, Material Research Institute for Sustainable Development

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Other Title
  • パルス通電焼結法を用いたＴｉＢ２－（Ｆｅ－Ａｌ）サーメットの短時間焼結
  • パルス ツウデン ショウケツホウ オ モチイタ TiB2 Fe Al サーメット ノ タンジカン ショウケツ

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Abstract

Short time fabrication of TiB2-30mass% Fe3Al cermet was performed by pulsed current sintering method. Milled powder mixture of TiB2, Fe and Al was consolidated using a pulsed current of 0 A-1000 A with 50 % duty ratio for 50 s with 1, 10 and 100 Hz frequency. Microstructures, densities and phases present in the cermets fabricated in such a way were examined. TheTiB2-30mass% Fe3Al cermet without formation of Fe2B was successfully fabricated. Increase in the pulse frequency led to an increase in the sample density and homogeneous distribution of TiB2 particles.

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