从流体动力学出发导出了液态金属浸渗纤维预制件的动力学模型.实验研究了碳纤维增强铝基复合材料的浸渗过程,测定了浸渗速度和浸渗系数.结果表明:实验数据与浸渗模型吻合;还发现了两种不同的浸渗方式,均匀浸渗和非均匀浸渗;并提出一种复合材料制造新工艺.用此工艺在不润湿的情况下,在低压力下制出高质量的C/Al复合材料。
On the basis of fluid kinetics, a model for infiltration kinetics of liquid metal into fibre prefabricated composite has been proposed. The infiltration processing, together with the measurements of infiltrating velocity and permeability, for the C fibre-reinforced Al matrix composites have been studied. The model proposed seems to be in good agreement with the experimeatal results. Two different infiltration modes, uniform and non-uniform, were found and a new technique was suggested.Thus, the quality composites of C fibre-reinforced Al may be made under low pressure regardless of non-wettability of liquid metal to the fibres.
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