This article focuses on the production of particulate reinforcements that are used in discontinuously reinforced metal-matrix composite (DRMMC) materials systems, their physical and materials properties, and the particle shape and overall morphology. The most common DRMMC materials systems used for aerospace structural applications are silicon carbide and boron carbide particulate reinforcement in an aluminum alloy matrix. The article concludes with information on reinforcement chemistry for designing DRMMC materials systems.
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