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Introduction to Aerospace Materials by A Mouritz

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16

Metal matrix, fibre–metal and ceramic matrix composites for aerospace applications

16.1 Metal matrix composites

16.1.1 Introduction to metal matrix composites

Metal matrix composites (MMCs) are lightweight structural materials used in a small number of aircraft, helicopters and spacecraft. MMC materials consist of hard reinforcing particles embedded within a metal matrix phase. The matrix of MMCs is usually a low density metal alloy (e.g. aluminium, magnesium or titanium). The metal alloys used in aircraft structures, such as 2024 Al, 7075 Al and Ti–6Al–4 V, are popular matrix materials for many MMCs. Nickel superalloys may be used as the matrix phase in MMCs for high-temperature applications.

The metal matrix phase is strengthened using ...

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