Metal matrix composites are metals reinforced with ceramic particles. The most widely used are based on aluminum reinforced with particles of silicon carbide or alumina. The reinforcement increases the stiffness, strength and maximum service temperature without seriously increasing the weight. Production now exceeds 10,000 tonnes per year, at a cost of 2 - 5 £/kg.

General Applications: Pistons; engine parts; brake discs, drums and calipers, drive shafts, mountain bike frames; precision instruments and sports equipment such as mountain bike frames and golf club shafts.

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Record number: 1022