Fundamentals for optimization of binding for high refractory mullite products

Abstract

Properties of the binder matrix affect the quality of the refractory. Better qualities are possible if the binding is optimum. Mechanical properties, thermal shock resistance, creep and corrosion behaviour of the mullite refractories were investigated based on the two different binder composition (Quartz/alpha-Al2O3 (QA) and Kaolin/alpha-Al2O3 (KA)) and stage grain type (sinter and fused mullite). Effect of ZrSiO4 addition to the binder matrix was investigated.