Additional experimental studies of shock compressibility of pressed Ceylon
graphite and also of its dynamic compressibility in a mixture with fluoropl
ast at pressures P = 10-40 GPa are carried out. These new results were comp
ared with recent data and notions suggested by other authors which stimulat
ed recourse to our previous experimental dependences of the electric conduc
tivity of thin plates cut from monolith natural Ceylon graphite and placed
in dielectric media with dynamic properties similar to those of graphite on
the pressure in the dielectric behind the front of a plane Ii-shaped shock
wave and on the duration of graphite pressurization. Using experimental re
cords and one of the modern models of a conductor - insulator mixture we de
rived an analytical dependence of the concentration of diamond-like modific
ations on the duration of graphite pressurization at various loading pressu
res and plotted curves of dynamic graphite compressibility that also depend
ed on pressurization time.