SiC粒子分散によるムライトの高温強度特性の向上 Improvement of High Temperature Strength of Mullite by Dispersion of SiC Particles

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Mullite/SiC composite ceramics containing 20 vol% SiC particles (0.12-1.71μm) were prepared by hot-pressing at 1650°C under 35 MPa for 4h. The effect of SiC particle size on mechanical properties such as bending strength and plastic deformation behavior at high temperatures was investigated as a function of cross-head speed. Bending strength and yield stress of mullite/SiC composite ceramics were higher than those of monolithic mullite at high temperatures. Bending strength and yield stress at 1300°C decreased with decreasing cross-head speed. At 1300°C, mullite/SiC composite ceramics with SiC grain size of 0.56-0.76 μm showed the highest bending strength and yield stress, which are 30-80% higher than those of monolithic mullite. On the other hand, mullite/SiC composite ceramics with SiC grain size of 0.18 μm showed maximum plastic deformation.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 43(12), 1429-1434, 1996-12-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002261191
  • 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
    4118678
  • 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  NDL  J-STAGE 
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