Anisotropy of Al2O3/SiCw in Friction and Wear. Basic Study on Al2O3/SiCw Tools.

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  • Ａｌ２Ｏ３／ＳｉＣｗの摩擦・摩耗の異方性　Ａｌ２Ｏ３／ＳｉＣｗ工具の基礎的研究
  • Al2O3 SiCw ノ マサツ マモウ ノ イホウセイ Al2O3 SiCw
  • Basic Study on Al<SUB>2</SUB>O<SUB>3</SUB>/SiCw Tools
  • Al<SUB>2</SUB>O<SUB>3</SUB>/SiCw工具の基礎的研究

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The anisotropy of silicon carbide whisker reinforced alumina (Al2O3/SiCw) in friction and wear was evaluated by the wear test against Inconel X-750 at high sliding speed. Coefficient of friction of Al2O3/SiCw was greater than that of Al2O3 and varied with direction angle θ by the factor of about two. It gave a maximum at θ=30°, while minimum at θ=150°. Wear rate of Al2O3/SiCw was smaller than that of Al2O3 and varied with θ by the factor of about three. It took maximum values at θ=30° and/or 150°, while minimum values at θ=0° and/or 90°. When θ=150°, however, Al2O3/SiCw hardly differs from Al2O3 in friction and wear. Thus, SiC whisker contributes little to the improvement of wear resistance of Al2O3 at the direction angle.

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