SHS/PHIP制备TiC-Al2O3/Fe复合材料的性能

PROPERTIES OF TiC-Al2O3/Fe COMPOSITES PREPARED BY SHS/PHIP

  • 摘要: 对SHS/PHIP技术制备出的TiC-Al2O3/Fe复合材料的性能进行了测试和分析。结果表明,TiC-Al2O3/Fe复合材料具有良好的综合力学性能。材料具有很高的比刚度。金属Fe相的加入,较大地提高了材料的抗弯强度和断裂韧性。TiC-Al2O3复相陶瓷为典型的脆性断裂;随着Fe含量的增加,材料具有明显韧性断裂的特征。

     

    Abstract: The influence of Fe content on the properties of TiC-Al2O3/Fe composites prepared by SHS/PHIP was studied. The results show that the TiC-Al2O3/Fe cermets prepared by SHS/PHIP possess high mechanical properties such as well-improved flexural strength and fracture toughness owing to the addition of Fe, and highly special stiffness. The TiC-Al2O3 ceramic exhibits the typical brittle fracture behavior. However, the TiC-Al2O3/Fe cermets exhibit obvious characteristic of tough fracture with Fe content increasing.

     

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