polycrystalline graphite

A @[email protected] with coherent crystallographic domains of limited size regardless of the perfection and preferred orientation (texture) of their crystalline structure.
The common use of the term polycrystalline @[email protected] for @[email protected] is in line with this definition but may be inexact because usually all grains of @[email protected] are polycrystalline themselves. Polycrystalline @[email protected] can exhibit a random orientation, more or less preferred orientation, or a highly oriented texture as in some @[email protected] There is no sharp transition, however, between the typical polycrystalline texture and the 'single crystal-like' texture of @[email protected] (HOPG).
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 500 [Terms] [Paper]