Silicon carbide fibers are fibers ranging from 5[1] to 150[2] micrometres in diameter and composed primarily of silicon carbide molecules. Depending on manufacturing process, they may have some excess silicon or carbon, or have a small amount of oxygen. Relative to organic fibers and some ceramic fibers, silicon carbide fibers have high stiffness,[2] high tensile strength,[2] low weight, high chemical resistance, high temperature tolerance[dubious – discuss] and low thermal expansion. (refs) These properties have made silicon carbide fiber the choice for hot section components in the next generation of gas turbines, e.g. the LEAP engine[3] from GE (General Electric).[4]
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