TiB_2-鉄基サーメットの液相焼結における緻密化挙動 Densification of TiB_2-Fe Based Cermets during Liquid Phase Sintering

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The densification behaviour of TiB<SUB>2</SUB>-Fe based cermets during liquid phase sintering in argon was studied in relation to wetting charactertics. The effect of TiB<SUB>2</SUB> powder properties and sintering condition, on the sintering behaviour, were also investigated. It was found that a liquid formed at about 1510K by a pseudobinary eutectic reaction of TiB<SUB>2</SUB>-Fe, the liquid formation caused a rapid densification of the compacts. However, a fine TiB<SUB>2</SUB> powder with a high purity showed good sinterability, while coarse and less pure powder showed poor sinterability. Appreciable densification started at the eutectic liquid formation, around 1510K and was kept on up to 1973K to attain full density. The wide temperature range for effective densification, from 1510-1973K, will mean that the rearrangement is dominated by slow process of liquid penetration and extensive wetting. Higher densities were obtained in the TiB<SUB>2</SUB>-SUS316L system due to improved wettability associated with the actions of Ni, Cr and Mo. It was found that the liquid penetration and wetting kinetics dominates the densification in the wide temperature range.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(7), 694-699, 1997-07-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002014277
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4258104
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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