non-graphitizable carbon

https://doi.org/10.1351/goldbook.N04194
A @[email protected] which cannot be transformed into @[email protected] solely by high-temperature treatment up to \(3300\ \text{K}\) under atmospheric pressure or lower pressure.
Note:
The term non-graphitizable is limited to the result of heat treatment without additional influence of foreign matter or @[email protected] radiation. [email protected]@ can be transformed into @[email protected] by a high-temperature process via intermediate @[email protected] in foreign matter and @[email protected] under high pressure or by radiation damage.
Source:
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 498 [Terms] [Paper]