Structures and Properties of Magnesium Base Composites

摘要

Chronic needs for higher performance in present and future military and commercial systems mandate improvements in material properties. High stiffness, high strength, and low density are among the material properties necessary to achieve future system performance goals. Such requirements can no longer be met using conventional metal alloys. Magnesium matrix composites are among the candidates to fulfill the aforementioned requirements. Ceramic fiber, particulate, and whisker reinforced magnesium composites have demonstrated significant improvements in specific stiffness and specific strength over the monolithic matrix alloys. Magnesium matrix composites can also compete with high strength aluminum alloys and other metal matrix composites for high performance and weight critical applications. Keywords: Composites; Metal matrix; Magnesium; Boron carbine; Silicon carbine; Alumina; Graphite; Fibers; Particulates. (JES)