高级检索
    王含英, 杨延清, 杭瑞强, 吴中, 陈彦. 原位SiC颗粒对SiCP/MoSi2室温断裂韧度的影响[J]. 机械工程材料, 2007, 31(8): 42-44.
    引用本文: 王含英, 杨延清, 杭瑞强, 吴中, 陈彦. 原位SiC颗粒对SiCP/MoSi2室温断裂韧度的影响[J]. 机械工程材料, 2007, 31(8): 42-44.
    shu
    WANG Han-ying, YANG Yan-qing, HANG Rui-qiang, WU Zhong, CHEN Yan. Effect of In-situ SiC Particle on Room-temperature Fracture Toughness of SiCP/MoSi2[J]. Materials and Mechanical Engineering, 2007, 31(8): 42-44.
    Citation: WANG Han-ying, YANG Yan-qing, HANG Rui-qiang, WU Zhong, CHEN Yan. Effect of In-situ SiC Particle on Room-temperature Fracture Toughness of SiCP/MoSi2[J]. Materials and Mechanical Engineering, 2007, 31(8): 42-44.
    shu

    原位SiC颗粒对SiCP/MoSi2室温断裂韧度的影响

    Effect of In-situ SiC Particle on Room-temperature Fracture Toughness of SiCP/MoSi2

      摘要
    • 摘要: 以钼、硅 、碳粉末为原料,采用湿法混合和原位反应热压一次复合工艺制备了MoSi2以及含不同体积分数原位SiC颗粒的SiCP/MoSi2复合材料,并研究了原位SiC颗粒对该材料室温断裂韧度的影响.结果表明：复合后的SiCP/MoSi2室温断裂韧度大幅度提高,原位SiC颗粒可以细化MoSi2基体晶粒,减少和消除脆性的SiO2玻璃相,并阻碍SiCP/MoSi2 复合材料断裂时的裂纹扩展而造成裂纹的偏转和桥接.

       

      Abstract: MoSi2 and SiCP/MoSi2 composites reinforced with different volume fractions of in-situ SiC particles were fabricated by means of in-situ reaction and hot press synthesis after wet mixing pure powders of Mo,Si and C.The effects of in-situ SiC particles on room-temperature fracture toughness of the composites were investigated.The room-temperature fracture toughness of the SiCP/MoSi2 composite increases,and the in-situ SiC particles refine the MoSi2 grains and eliminates the brittle SiO2 glass,resulting in crack deflection and bridging during the crack extension.

       

      • HTML全文
      • 参考文献(11)
      • 相关文章
      • 施引文献
    • 资源附件(0)

    /

    返回文章
    返回