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Composite materials are made of a combination of two or more materials with different mechanical, chemical or physical properties. Like all other composite materials, Carbon-Carbon (C-C) composites combine two major elements, carbon fibers and a carbon matrix. The properties of Carbon-Carbon (C-C) composites are significantly improved and more appropriate for many applications. Carbon-Carbon (C-C) composites are preferred over other materials because they maintain stability and perform structurally at highest temperature due to light weight, strong stiffness, toughness, superior thermal coefficients, ablation, and high-speed friction properties. The components of Carbon-Carbon (C-C) have been manufactured in theUnited States in the last three decades for most aerospace and defense applications. Carbon-Carbon (C-C) composites combine exceptional mechanical property-to-weight ratios and excellent refractory properties, making them the materials of choice for severe and tough environmental applications such as atmospheric reentry, solid rocket motor exhaust, and disk brakes in high performance military and commercial aircrafts, high speed trains and racing cars
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