バインダーレス立方晶窒化ホウ素焼結体の高圧合成 High-Pressure Synthesis of Binderless Cubic Boron Nitride Sintered Bodies

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  In this article, synthesis of cubic boron nitride (cBN) sintered bodies without any additive was reviewed. At pressures higher than 8 GPa, direct transformation from hexagonal BN (hBN) to cBN took place near 2000°C. The resultant binderless cBN sintered bodies exhibit superior properties as highly wear resistive materials. At 10 GPa region, reaction temperature required for the complete transformation from hBN to cBN can be suppressed to near 1700°C, resulting in suppression of grain growth during the sintering. Higher wear resistance properties of binderless cBN sintered bodies with finer grains as cutting tools were demonstrated by their superior cutting performance against ferrous materials. Further requirement for the fabrication of large scale binderless cBN sintered bodies by sintering of fine cBN grains was also discussed for future study.<br>

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 21(4), 292-299, 2011-11-20

    The Japan Society of High Pressure Science and Technology

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各種コード

  • NII論文ID(NAID)
    10030275124
  • NII書誌ID(NCID)
    AN10452913
  • 本文言語コード
    JPN
  • 資料種別
    REV
  • ISSN
    0917639X
  • NDL 記事登録ID
    023492606
  • NDL 請求記号
    Z17-1589
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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