In work (Evaluation of Temperature Jump at the Front of Comminuting and Compaction of the Ceramic Target Material at High-Velocity Impact, Galanov B.A., Kartuzov V. V., Ivanov S. M. and Pryadko A. A., Proceedings of 41st Int’l Conf & Expo on Advanced Ceramics & Composites (ICACC 2017) accepted to publication) temperature jump on the front of comminution and compaction of fractured material (i.e., at the boundary of Mescal zone) is estimated at projectiles’ penetration into ceramics. This jump is experimentally observed on transparent materials and witnesses that during the process of fracture and compaction a material is heated on the moving boundary of Mescal zone at impact. Heating process is modeled by the initial-boundary value problem for the equation of heat conductivity in a region with moving boundaries. The problem is approximately solved and investigated on time interval slightly longer than a time of impact due to perform an analysis of temperature change of a material after impact. The size of zone of effective heating of material near temperature jump is estimated.