Fabrication of c-BN Composites under Thermodynamically Metastable Condition of the c-BN by HIPing, UHPHIPing, and UHPHPing

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The sintering behavior of cubic boron nitride (c-BN) composites and c-BN / ceramic whisker composites under conditions in which the c-BN is thermodynamically metastable were studied by HIPing, and by ultrahigh pressure hot isostatic pressing (UHPHIPing), and by ultrahigh pressure hot pressing (UHPHPing). The c-BN fine particles (particle size: 0.5-2μm) coated with TiN by a physical vapor deposition (PVD) method, was used. A high-purity alumina (α-Al<SUB>2</SUB>O<SUB>3</SUB>) powder produced by the ammonium-aluminum carbonate thermal decomposition process were used as bonding materials with a very small amount of magnesia and titania, and 0, 30 and 40vol% SiC whiskers were also added. The obtained c-BN composites including relatively large amount of c-BN, or c-BN and SiC whiskers, were fully compacted without forming h-BN. Some of them showed very high hardness that ranked with c-BN cutting tools.

収録刊行物

  • 高圧力の科学と技術 = The Review of high pressure science and technology  

    高圧力の科学と技術 = The Review of high pressure science and technology 7, 1001-1003, 1998 

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10002692566
  • NII書誌ID(NCID)
    AN10452913
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    0917639X
  • NDL 記事登録ID
    4494126
  • NDL 雑誌分類
    ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z17-1589
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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