高温自己伝播反応によるTiB_2粒子分散アルミニウム合金の合成 Synthesis of TiB_2 dispersed aluminum alloys by the self-propagating high-temperature reaction

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著者

    • 小橋 真 KOBASHI Makoto
    • 名古屋大学工学部材料プロセス工学科 Department of Materials Processing Engineering, School of Engineering, Nagoya University
    • 長 隆郎 CHOH Takao
    • 名古屋大学工学部材料プロセス工学科 Department of Materials Processing Engineering, School of Engineering, Nagoya University

抄録

TiB<sub>2</sub> dispersed aluminum alloy was synthesized by the reaction. Starting materials used in this experiment were titanium, AlB<sub>12</sub> and AlB<sub>2</sub>. The heat of reaction between titanium and AlB<sub>12</sub> was too high to maintain the original configuration of the powder compact. Thermodynamical calculation reveales that the adiabatic temperature of the reaction between titanium and AlB<sub>12</sub> exceeds the boiling temperature of aluminum. Titanium and aluminum were added in the [Ti, AlB<sub>12</sub>] powder mixture to control the adiabatic temperature of the reaction. The addition of both titanium and aluminum can successfully control the adiabatic temperature. The average size of the TiB<sub>2</sub> particles was strongly depends on the amount of titanium added as the diluent of the heat of reaction. As the amount of titanium addition in powder phase increases, the average size of TiB<sub>2</sub> particles, synthesized by the reaction, decreases. Differential thermal analysis (DTA) data reveales that the reaction between titanium and AlB<sub>2</sub> initiates at around 1280 K (the decomposing temperature of AlB<sub>2</sub>) whereas the reaction between titanium and AlB<sub>12</sub> does not occur at temperatures below 1473 K. The addition of aluminum powder in powder mixture of [Ti, AlB<sub>12</sub>] system, however, contributes to decreasing the initiation temperature of the reaction.

収録刊行物

  • 軽金属

    軽金属 46(9), 444-449, 1996-09-30

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10003794460
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    4037903
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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