values of the graphite single crystal, and low strength values.
Note:
The term carbon fibres type LM is sometimes used for various types of isotropic carbon fibres known as pitch-based or rayon-based carbon fibres that have not been subjected to hot-stretching. Such fibres are not used for reinforcement
purposes in high-performance composites.
Source:
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations
1995))
on page 482