Comparison of two kinds of experiments for estimaton of thermal properties of ablative composite

摘要

The aim of this work is to give more information on the influence of the experimental conditions to the estimated thermal properties of ablative composite materials. STwo kinds of experiments with the carbon phenolic composite samples have been carried out. IN the first, the smaple has been exposed to intentive thermal load from acetylene flame, and in the second, the sample has been incorporated in the rocket nozzle. The obtained transient temperature respoonses are used to estimate unknown thermal properties.