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在金属基复合材料中引入了三维连续网络结构增强相的概念并给出了制备这种特殊结构复合材料的一种方法 .以Al TiO2 C系为例 ,对利用自蔓延高温合成方法 (SHS)制备的Al2 O3 TiC多孔连通网络陶瓷骨架进行真空高压浸渍Al液获得这种复合材料的整个制备过程进行了研究 .重点研究了相关SHS反应过程中连通孔隙率的形成规律并利用扫描电镜和光学显微镜对Al2 O3 TiC多孔陶瓷材料以及得到的三维连续网络结构增强金属基复合材料的微观形貌特征进行了观察 .
The concept of three-dimensional continuous network structure reinforced phase is introduced into metal matrix composites and a method for preparing such special structure composite materials is given. Taking Al TiO2 C as an example, the self-propagating high temperature synthesis (SHS) The prepared Al 2 O 3 TiC porous network ceramics skeleton was vacuum pressure impregnated Al liquid to obtain the whole preparation process of this composite material was studied. The formation of interconnected porosity during the relevant SHS reaction was studied. Scanning electron microscopy and optical microscopy The microstructure of Al 2 O 3 TiC porous ceramic materials and the three-dimensional continuous network structure reinforced metal matrix composites were observed.