polygranular graphite

https://doi.org/10.1351/goldbook.P04731
A @[email protected] composed of grains which can be clearly distinguished by means of optical microscopy.
Note:
From the viewpoint of @[email protected], a polygranular @[email protected] is always a @[email protected] but not vice versa. Most industrial @[email protected] materials are polygranular. Monogranular materials consist mostly of @[email protected], such materials are called monolithic or @[email protected]
Source:
PAC, 1995, 67, 473. (Recommended terminology for the description of carbon as a solid (IUPAC Recommendations 1995)) on page 501 [Terms] [Paper]