Metal matrix composite and nanocomposite for aerospace application

There is growing needs of metal matrix composites (MMCs) and nanocomposites in aerospace applications because of their superior mechanical characteristics, lightweight, improved thermal conductivity, low thermal expansion coefficient and cost effectiveness in nature. These materials are appropriate for harsh environment because they combined the advantages of metals with the improved qualities of nanoscale/micro scale reinforcements. In recent times, there has been an increased demand for lightweight and high-strength materials for various engineering applications. In addition to other sectors, the aeronautics industry uses mostly super alloy-based composites and nanocomposite materials. In order to achieve the intended characteristics, selection of the constituent materials (both matrices and reinforcements) for the composites or nanocomposites are crucial for the fabrication of high-performance composite materials. Moreover, the incorporation of nano-reinforcements in the metal or alloy matrix improves their performance in harsh environments due to the structural integrity of the resultant materials. Because of their exceptional mechanical, thermal and other functional qualities, nanocomposites are a beneficial replacement for conventional materials in aeronautics, allowing for design and functionality advancements. The benefits that nanocomposites are offered over pure metals or alloys are the driving force for the growing applications for this class of materials in aerospace field. The main objective of this review paper is to provide an overview of various metal matrix composites and nanocomposites for aerospace applications.