硅酸铝纤维增强铝基复合材料的抗拉强度及其影响因素

Room Temperature-Tensile Strength of the Aluminium Matrix Composites Reinforced by Alumina-Silicate Fiber and Factors That Influence

摘要:

研究了基体合金化，硅酸铝纤维处理方法以及不同粘结剂对硅酸铝纤维增强的铝基复合材料室温强度的影响。结果表明：基体为ＺＬ１０９铝合金的复合材料的强度高于以其它铝合金为基体的铝基复合材料；用莫来石硅酸铝纤维增强的铝基复合材料的抗位强度高于用γ型三氧化二铝纤维增强的铝基复合材料；

Abstract:

The influence of matrix alloying, treatiment methods for the alumina-silicate fibers, and different binders, on the tensile strength of aluminium matrix composites (AMCs)reinforced by alumina-silicate fibers has been investigated. It is shown that the tensile strength of the AMC with ZL109 aluminium alloy as a matrix is higher than those of AMCs with other aluminium alloy matrices. The tensile strengths of AMCs reinforced by Mullite alumina-silicate fibers is higher than those of AMCs reinforced by Al 2O 3 fibers and the tensile strength of the AMC with silicasol binder is higher than that of the AMC with alumina binder. This phenomenon is explained in detail in terms of AMC fracture mechanisms.