## pyrolytic graphite

https://doi.org/10.1351/goldbook.P04964
A @[email protected] with a high degree of preferred crystallographic orientation of the c-axes perpendicular to the surface of the substrate, obtained by @[email protected] of @[email protected] or by chemical vapour deposition at temperatures above $$2500\ \text{K}$$.
Note:
'Pyrographite', a synonym for pyrolytic @[email protected], was introduced as a trademark and should not be used as a term. Hot working of pyrolytic @[email protected] (by heat treatment under compressive stress at temperatures above $$3000\ \text{K}$$) results in @[email protected] (HOPG).
Source:
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 502 [Terms] [Paper]