[en] Strong electronic stopping of high energy and high degree of ionization ions can lead to Coulomb explosion in which electron stripping causes repulsive interaction among positively charged atoms along ion tracks. Using molecular dynamics simulations and introducing an ionization pulse which lasts for different time periods, Coulomb explosion and structural evolution up to a time scale of 30 ps were modeled in SiC. The time periods of ionization pulses play an important role to determine radius of melting/amorphous regions after structural relaxation. For a long ionization, the amorphous/melting region can expand and become larger than the originally ionized region, while the opposite is observed for short ionization. (authors)