TY JOUR TI INVESTIGATION OF THE MATERIAL COMPOSITION AND STRUCTURAL AND MORPHOLOGICAL CHARACTERISTICS OF TWO TYPES OF HIGH-ALUMINA MATRIX (BINDER) SYSTEMS KW refractory castables KW ceramic castables KW low-cement castables KW matrix systems KW suspensions KW reactive alumina KW dispersion KW scanning electron microscopy JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Trubitsyn, M.A. AU Volovicheva, N.A. AU Furda, L.V. AU Kurbatov, A.P. AU Lisnyak, V.V. PY 2023 IS 8 PB Belgorod State Technological University named after V.G. Shukhov