A non-graphitic carbon
which cannot be transformed into graphitic carbon
solely by high-temperature treatment up to
under atmospheric pressure or lower pressure.
The term non-graphitizable is limited to the result of heat treatment without additional influence of foreign matter or neutron
radiation. Non-graphitizable carbon
can be transformed into graphitic carbon
by a high-temperature process via intermediate dissolution
in foreign matter and precipitation
under high pressure or by radiation damage.
PAC, 1995, 67, 473
(Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995))
on page 498
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. doi:10.1351/goldbook