無コバルト炭化タングステン焼結体の機械的強度

書誌事項

タイトル別名
  • Mechanical Strength of Cobaltless Sintered Tungsten Carbide Body.
  • ムコバルト タンカ タングステン ショウケツタイ ノ キカイテキ キョウド

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抄録

This paper describes the mechanical strength of the cobaltless sintered WC which is suitable for the substrate of diamond-coated tool. Cobaltless WC is sintered under different sintering conditions by Spark Sintering. Then, its mechanical characters are evaluated by Rockwell hardness on the A scale and the bending strength. As a result, by selecting the proper sintering condition, the particle size is 1.0-1.4 μm, sintering temperature is 1800-1900°C, sintering pressure is 50 MPa and sintering time is 600 s, the hardness of the cobaltless sintered WC is improved to 98 (HRA), and the bending strength is improved to 1.3 GPa.

収録刊行物

  • 精密工学会誌

    精密工学会誌 64 (12), 1811-1815, 1998

    公益社団法人 精密工学会

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