界面软质层在C／Al复合材料中行为的试验研究

An Experimental Study of the Behavior of Soft Interface Layer in C/Al Composites

界面软质层在Ｃ／Ａｌ复合材料中行为的试验研究王浩伟，贺鹏飞，吴人洁，张国定（复合材料研究所）关键词金属基复合材料，界面，软质层，断裂，纤维中图法分类号ＴＢ３３１界面是复合材料极其重要的组成部分，纤维增强金属基复合材料（ＦＲＭ）的界面对其力学性能尤其是...

The mechanical properties of fiber reinforced metal matrix composites, especially the axial tensive property, are influenced significantly by the interface between fiber and matrix. To control the interface bonding strength, a soft layer was set in the interface in C/Alcomposite. The fracture mode was improved and high axial tensile strength was achieved with soft interface layer. It was found experimentally that the thicknees of the soft layer plays an important role in the strength and fracture mode of the composite. Brittle fracture occured at a lower stress with a thinner soft layer3 but if the soft layer was too thick, it would be destroyed at a lower stress. Both covers reduced the tensile strength of the composIte.