Si. Kudryashov et al., ANALYSIS OF THE STRUCTURE OF FOAM GRAPHITE BY OPTOACOUSTIC SPECTROSCOPY AND SCANNING ELECTRON-MICROSCOPY, Mendeleev communications, (1), 1997, pp. 25-26
A specimen of foam graphite foil is shown to have an anisotropic struc
ture and consists of layers (stacks) of crystallite sheets weakly boun
d to one another.