Reactive Infiltration Synthesis of Aluminide Matrix Composites

将研究铝化物金属间化合物及其复合材料的加工和力学行为。液态铝将被渗透到由增强相、纤维、颗粒或金属间化合物高温成分的粉末组成的预制件中。基质是由金属粉末与铝反应形成的。这项研究将探索与合成相关的热力学和反应动力学，以及在高温下产生的材料的微观结构和机械特性。机械性能研究将指导加工工作。*/

Processing and the mechanical behavior of aluminide intermetallics and their composites will be studied. Liquid aluminum will be infiltrated into a perform consisting of the reinforcing phase, fibers, particulates or powers of high temperature component of intermetallic Ti, Ni, Fe. The matrix is formed by reaction between the metal power and the aluminum. The research will explore thermodynamics and the reaction kinetics associated with the synthesis, and the microstructural and mechanical characterization of resulting materials at elevated temperatures. The mechanical behavior studies will guide the processing efforts.*** //