HIGH TEMPERATURE MECHANICAL BEHAVIOR OF Al2O3-MgO-C

CALAFIORE, A.; CAVALIERI, A.L; MUÑOZ, V.; TOMBA, A.G; GALLIANO, P.G.

Fortaleza, Brasil

Congreso; 11th Biennial Worldwide Congress on Refractories UNITECR?09; 2009

Asociacion Brasilera de Cerámica y otros

Al2O3-MgO-C refractory bricks are widely used for steelmaking vessel working lining. This is due to a set of advantageous specific properties such as high resistance to slag corrosion and thermal spalling and high temperature mechanical resistance, among  others. They have been successfully used for more than twenty years in ladle and furnace linings. However a deeper understanding of their high temperature behavior is still required in order to optimize their performance. Stress-strain curves are a suitable tool to obtain a comprehensive knowledge of the mechanical behavior of carbon based refractories in similar conditions to those in service. The aim of this paper is to evaluate the mechanical performance of commercial Al2O3-MgOC bricks at high temperature conditions by stress-strain curves