Morphological analysis of surface degradation of advanced alumina based refactories subjected to thermal shock

Abstract

Thermal stability of the alumina based samples were measured using the water immersion test. Mechanical characteristics such as strength, dynamic modulus of elasticity resulting from resonance frequency measurements were considered. Image analysis was used to measure the fiber lengths distribution, homogeneity of fiber distribution in the matrix and finally the measurement and characterization of surface degradation of specimens during thermal stability testing. The morphology of resulting surface destruction was analyzed using mathematical morphology tools.