072) values suggest that at lower voltages (region I), the conduction is ohmic, that is, the current changes linearly with voltage, whereas at higher voltages (region II), the conduction is the non-ohmic
2) conductivity by means of barrier tunneling between particles which have no direct contact, 3) other, non-Ohmic
types of conductivity processes, for example, space charge limited conductivity.
Space charges are characterized by a non-ohmic
relationship between current and voltage.
By taking into account that the carbon black particles are sources of charge carriers that move freely through the polymer chains, it can be suggested that the conduction process is non-ohmic
(I = [kV.
log V indicates that in the low field region the slope is nearly equal to unity showing ohmic behavior, whereas in the high field region the behavior in non-ohmic
having slope equal to 2.