An agranular
non-graphitizable carbon with a very high isotropy of its structural and physical properties and with a very
low
permeability for liquids and gases. The original surfaces and the fracture surfaces have a pseudo-glassy
appearance.
Note:
The often used synonyms '
glassy carbon' and '
vitreous carbon' have been introduced as trademarks and should not be used as terms. From a scientific
viewpoint, all synonymous terms suggest a similiarity with the structure of silicate
glasses which does not exist in glass-like carbon, except for the pseudo-glassy appearance
of the surface. Glass-like carbon cannot be described as
amorphous carbon because it consists of two-dimensional structural elements and does not exhibit '
dangling' bonds.
Source:
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations
1995))
on page 490
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
