サイアロンセラミックスの均一性 Homogeneity of Sialon Ceramics

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The macroscopic inhomogeneity of Sialon ceramics was studied. There were two regions in the sintered body. One of regions was green region and the other was brown region. The fracture toughness of the sintered body with two regions had large difference, and the green region had low toughness. The regions were analyzed by UV spectroscopy, EPMA, XRD, SEM, and TEM. There was no difference in microstructure, but there was difference in electronic state, chemical composition, and crystal phase. From these fact, it is considered that the origin of macroscopic inhomogeneity is due to gas generated from decomposition of Sialon. The gas is shut in sintered body when densification is fast at surface, and the chemical composition of grain boundary or grain is changed by reaction with gas.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 43(9), 1117-1121, 1996-09-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013097
  • 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
    4036697
  • 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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