The problems can be addressed , in part , through a strongly reactive alloying addition , such as mg , li and so on , and through reinforcement coating . in this paper sicp / al composites and sicp / al - si composites fabricated by the pressureless infiltration method . in order to found out the influence the different quantity of the reactive alloying addition mg si ce on the wetting between sicp and molten metal as well as the properties of mmcs , the behaviors of molten metal , the mechanical properties , micro - structure and the interfacial reactions was investigated respectively 本文通过研究制备sicp al复合材料、 sicp al - si复合材料的过程中，熔融铝液或铝硅合金液的浸渗行为、 sic - al 、 sic - al - si之间的界面反应、复合材料的机械性能、微观结构等，探讨了不同量的活性元素mg 、 si 、 ce对sic颗粒与熔融基体之间的润湿性及复合材料性能的影响。
The developed fuzzy inference systems could mapping the relationships between compositions and mechanical properties accurately and could used to predict material properties with the known compositions and / or process parameters . with the help of the developed models , one could analysis the influences of compositions and / or process on properties , and get information for the further improving of material property 实验表明，本文所建立的自适应模糊预报模型，成功的实现了铸造铝硅合金力学性能以及其他材料物理性能的预报，可以用于分析工艺参数、化学成分等对性能的影响，为优化生产工艺、研制高性能合金提供依据。
The experimental results show that the internal friction peak of the material in the three conditions appears differently , and the influence of temperature on the characteristics of frequence of internal friction in the 3 - point bending mode is greatest ; the strain - amplitude effects of the three boundary conditions of the material are similar basically ; the influence of temperature on the internal friction of the material in 3 - point bending mode is greater than the single and dual bending modes 结果表明：泡沫铝硅合金在不同边界条件下的内耗峰出现情况不同，且温度对三点弯曲模式时内耗的频率特性影响最大；三种边界条件下泡沫铝硅合金的内耗的振幅效应基本相似；温度对该材料在三点弯曲模式比单双悬臂梁振动模式下内耗的影响更大。
