TY - JOUR TI - Thermal response of heat-resistant layer with pyrolysis AU - Huang Hai-Ming AU - Xu Xiaoliang AU - Huang Guo AU - Zhang Zimao JN - Thermal Science PY - 2012 VL - 16 IS - 1 SP - 69 EP - 78 PT - Article AB - A model is developed for analyzing the thermal response of the heat-resistant layer composed of high silica fiber reinforced phenolic matrix composites(SiO2/P) and aluminum, in which pyrolysis and phase transitions are exsited, such as melt, vaporization and sublimation. Based on this model, the thermal response of the heat-resistant layer with different SiO2/P thickness is calculated under a heat flux by using FORTRAN codes. As indicated in the results, the slope of temperature gets a sudden decline at the pyrolysis interface, which is due to the latent heat of pyrolysis; the thickness of heat-resistant layer has little influence on the heating-surface temperature, however, the back temperature may increase with the decreasing thickness; and the thermal conductivity of carbonized layer is very important to thermal response.