炭素繊維/アルミニウム合金複合材料の熱処理による界面強さの変化とその力学的特性への影響 Effect of Heat Treatment on Bending Strength, Compressive Strength and Interfacial Shear Strength of Carbon Fiber Reinforced Aluminium Alloys

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The effect of the heat treatment of carbon fiber reinforced aluminium alloys (CFRM : two PAN based high modulus and a PAN based high strength CFs, V<SUB>f</SUB>=70%) on the bending strength, the compressive strength and the interfacical shear strength between the carbon fibers and the matrix has been studied. The FRM samples were subjected to heat treatments in Ar gas at temperatures of 773K and 873K for from 3.6 ks to 90 ks to assess their mechanical properties and interface reactions. After the heat treatments, X-ray analysis revealed that the content of Al<SUB>4</SUB>C<SUB>3</SUB> accumulated at the interface increased as already well known, and the interfacial shear strength increased to an extent according to the temperature and the holding time. As the interfacial shear strength of the PAN based high modulus carbon fiber/Al-7.8%Mg alloy FRM increases from a level of 5 MPa to a higher level of 25 MPa after the heat treatments, the tensile strength of the CFRMs decreases rapidly from a high level of 1, 200 MPa to a lower level of 550 MPa, however the compressive strength of the CFRMs shows no change. In the case of the PAN based high modulus carbon fiber/ Al 7.1%Si-0.36%Mg alloy FRMs, the tensile strength decreases slightly from a level of 600 MPa to a lower level of 500 MPa, on the contrary the compressive strength of the CFRMs shows sharp increase from a level of 600 MPa to a higher level of 900 MPa, as the interfacial shear strength of the FRMs increases from a level of 25 MPa to a higher level of 40 MPa after the heat treatments. The compressive strengths of the CFRMs contain high strength CFs show a high, constant level of 1, 600 MPa and the tensile strengths of the CFRMs show a low level of 450 MPa in the range of interfacial shear strengths over 40 MPa even after the heat treatments.

収録刊行物

  • 日本複合材料学会誌 = Journal of the Japan Society for Composite Materials

    日本複合材料学会誌 = Journal of the Japan Society for Composite Materials 23(2), 54-61, 1997-03-15

    JAPAN SOCIETY FOR COMPOSITE MATERIALS

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各種コード

  • NII論文ID(NAID)
    10002464950
  • NII書誌ID(NCID)
    AN00196748
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03852563
  • NDL 記事登録ID
    4170439
  • NDL 雑誌分類
    ZM16(科学技術--科学技術一般--工業材料・材料試験)
  • NDL 請求記号
    Z14-655
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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