Carborundum Refractory Concretes Based on Artificial Ceramic Binder

Inorganic Materials: Applied Research. 2025. Vol. 16. No. 2. P. 435–442.

Zaitsev S. V., Doroganov V. A., Yastrebinsky R. N., Bondarenko G.G.

This article considers a method for increasing the mechanical strength and corrosion resistance of
aluminosilicate refractories to glass melts and slag. For this purpose, artificial ceramic binders (ACB) of mullite-
carborundum composition were synthesized using the technology of highly concentrated ceramic binder
suspensions (HCBS). The morphological characteristics and grain size of ACB were analyzed, and the structure
and physical and mechanical properties of sintered products were investigated. It was found that nanodispersed
particles are formed as a result of mechanochemical processes occurring during joint milling. The
average particle size was about 30–40 nm. Heat-treated ACB-based samples consist of crystalline phases of
corundum, mullite, and SiC, which are uniformly distributed in the material. It was shown that, with an
increase in the annealing temperature, the physical and mechanical properties increase. Introduction of mullite-
carborundum binder into the composition of high-alumina fireclay refractories resulted in an improvement
in the physical and mechanical properties and corrosion resistance to glass melts and slag. It was shown
that refractories containing 50% ACB have the most favorable physical and mechanical properties. Compared
to the factory sample, the experimental samples demonstrated a significant improvement in corrosion resistance
to glass melts and slag by 90 and 94%, respectively

Keywords: corrosion resistance, коррозионная стойкость, tensile strength, artificial ceramic binders (ACB),, искусственные керамические вяжущие (ИКВ), предел прочности