value).
Note:
The tensile modulus (Young's modulus) varies between ca.
and
,
but the disposition of the boundaries is somewhat arbitrary. The relatively high ratio
of tensile strength to tensile modulus, typically above
, in carbon fibres 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
.
Such small filament diameters are typical of carbon fibres type IM.
and
,
but the disposition of the boundaries is somewhat arbitrary. The relatively high ratio
of tensile strength to tensile modulus, typically above
, in carbon fibres 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
.
Such small filament diameters are typical of carbon fibres type IM.
Source:
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations
1995))
on page 482