Synthesis of W_2C by Reactive Hot Pressing and Its Mechanical Properties

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Tungsten hemicarbide W<SUB>2</SUB>C with no or small amounts of W or WC was prepared by reaction-sintering from W and WC powders using a resistance-heated hot-pressing technique called spark plasma sintering. The product phases, density, microstructure, elastic moduli, hardness, and fracture toughness of the sintered bodies were determined. The stable region of the W<SUB>2</SUB>C phase had a narrow carbon content below 1860°C. W<SUB>2</SUB>C had a Poisson's ratio of 0.286, and its Young's modulus at zero porosity was determined to be 444 GPa from the true density and bulk density dependence. These values suggest that W<SUB>2</SUB>C has elastic deformation behavior similar to that of W.

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  • Materials transactions  

    Materials transactions 49(6), 1256-1261, 2008-06-01 

    The Japan Institute of Metals and Materials

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各種コード

  • NII論文ID(NAID)
    10021147273
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    9519028
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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