highly oriented pyrolytic graphite (HOPG)

https://doi.org/10.1351/goldbook.H02823
Highly oriented @P04964@ (HOPG) is a @P04964@ with an angular spread of the c-axes of the crystallites of less than 1 degree.
Note:
Commercial HOPG is usually produced by stress annealing at approximately \(3300\ \text{K}\).
Source:
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 495 [Terms] [Paper]
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). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014