Synthesis and Sintering of AIN using Enriched Nitrogen

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A high purity Al powder was directly reacted with isotopically enriched <SUP>15</SUP>N<SUB>2</SUB> gas at 1, 200°C in a vacuum furnace to synthesize Al<SUP>15</SUP>N. In the initial reaction process, a small amount of AlF<SUB>3</SUB> was mixed with the Al powder to suppress excess temperature rise due to the heat of formation of the nitride. Then, the Al<SUP>15</SUP>N thus formed was used as the diluent for the second run, and the same procedure was repeated. A total of 100g of Al<SUP>15</SUP>N powder with <SUP>15</SUP>N isotopic content 99.6 at% was formed with average gas efficiency of 75.6%. Then the Al<SUP>15</SUP>N powder was pressureless-sintered at 1, 830°C in an argon atmosphere by adding a small amount of Y<SUB>2</SUB>O<SUB>3</SUB> as the sintering agent. An Al<SUP>15</SUP>N ceramic plate with dimensions 50mm×50mm×1.6mm and relative density 97.3% was obtained with the <SUP>15</SUP>N isotopic content 99.2 at%. Some physical properties and stability in air of an Al<SUP>15</SUP>N ceramic plate were studied.

収録刊行物

  • Journal of nuclear science and technology  

    Journal of nuclear science and technology 33(7), p.597-603, 1996-07-25 

    Atomic Energy Society of Japan

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各種コード

  • NII論文ID(NAID)
    10002075193
  • NII書誌ID(NCID)
    AA00703720
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    00223131
  • NDL 記事登録ID
    4060412
  • NDL 雑誌分類
    ZM35(科学技術--物理学)
  • NDL 請求記号
    Z53-A460
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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