Читать книгу Industrial Carbon and Graphite Materials - Группа авторов - Страница 87

The tensile modulus (Young’s modulus) varies between approximately 275 and 300 GPa, but the disposition of the boundaries is somewhat arbitrary. The relatively high ratio of tensile strength to tensile modulus, typically above 1 × 10⁻², in CARBON FIBERS TYPE IM, in spite of an increase of Young’s modulus, requires a further increase of strength, which is achievable by a significant reduction of the monofilament diameter down to about 5 μm. Such small filament diameters are typical of CARBON FIBERS TYPE IM.