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首页> 外文会议>Japan International SAMPE Symposium >Fabrication of Metal/Ceramic in situ Composites via Pressureless Reactive Infiltration Processing
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Fabrication of Metal/Ceramic in situ Composites via Pressureless Reactive Infiltration Processing

机译：通过无线反应性渗透处理制造金属/陶瓷原位复合材料

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Metal matrix composites (MMCs) have been produced by a reactive infiltration process. Molten Al was infiltrated, without applying pressure, into a porous (Al_2O_3+Ti) compact at 973-1073K by an exothermic reaction between molten Al and Ti powder. The exothermic reaction as the driving force of the infiltration enabled not only rapid infiltration but also pressureless densification below 0.1 percent open porosity. The Al_2O_3 particles were homogeneously distributed in the matrix containing Al and aluminide-intermetallic phase, and the MMCs exhibited excellent properties such as low density, high Young's modulus, high strength and thermal resistance. Moreover, life cycle assessment (LCA) analysis revealed that the quantity of energy consumption using this process was reduced to about one-tenth that of the conventional powder metallurgy (PM) process. Therefore, this new method enables us to fabricate MMCs without the requirement for excess energy and pressure equipment, providing an environmentally friendly and low-cost process for the production of composites.
机译：金属基质复合材料（MMC）通过反应性渗透过程生产。通过在熔融Al和Ti粉末之间的放热反应，熔融Al在没有施加压力的情况下渗透而不施加压力，在973-1073K中凝固到多孔（Al_2O_3 + Ti）。放热反应随着渗透的驱动力而不仅能够快速渗透而且还具有低于0.1％的开放孔隙度的无压致密化。 Al_2O_3颗粒在含有Al和铝化物质相的基质中均匀分布，MMC表现出优异的性能，例如低密度，高杨氏模量，高强度和热阻。此外，生命周期评估（LCA）分析显示，使用该过程的能量消耗量降低至传统粉末冶金（PM）过程的约十分之一。因此，这种新方法使我们能够制造MMC，而无需过量的能量和压力设备，为复合材料的生产提供环保和低成本的过程。

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