## high-pressure graphitization

https://doi.org/10.1351/goldbook.H02824
A term which refers to the solid-state @T06446@ of @N04193@ into @G02684@ by heat treatment under elevated pressure (e.g. $$100$$ to $$1000\ \text{MPa}$$) so that a definitely higher degree of @G02691@ is achieved at lower temperature and/or for a shorter heat treatment time than in heat treatment of the same non-graphitic material at atmospheric pressure.
Source:
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 495 [Terms] [Paper]