WAVE DISTURBANCE OF THE TEMPERATURE FIELD IN LOW-THERMAL-CONDUCTIVITY MATERIALS
G. A. Frolov and V. L. Baranov UDC 536.2.083 It has been established that under conditions where the heat flux supplied exceeds the level permissible for heating a material without the destruction of its surface, the velocity of propagation of heat is independent of the prehistory of heating and is determined by the steady-state value of the temperature on the surface being destroyed. The possibility of disturbing the temperature field in a wave manner has been shown; the wave disturbance is attenuated with increase in the heating time, if there is no removal of mass, and reduces the time in which the stationary regime of destruction of the surface in mass removal is reached. An analytical expression for calculation of the wave disturbance of the temperature field has been proposed. I. N. Frantsevich Institute of Problems of Materials Science, National Academy of Sciences of Ukraine, 3 Krzhizhanovskii Str., Kiev, 03142, Ukraine; email: g_frolov@nbi.com.ua. Translated from Inzhenerno -Fizicheskii Zhurnal, Vol. 79, No. 4, pp. 118-125, July-August, 2006. Original article submitted December 27, 2005.