Spasonova L.M.

Phase Phase Composition and Melting Features of Mineral Raw Material from Ukrainian Deposits used for LAS-Ceramics Production

This paper describes how Li-glass is obtained and studied. Using this glass, Li2O-Al2O3-SiO2 – based glass-ceramics materials are produced. They play an important role in industry as materials with specific properties. Glass-ceramics materials feature high strength, low coefficient of thermal expansion, chemical and thermal stability, refractoriness etc. To obtain LAS-сeramics, we obtain separate fraction petalite, study their chemical composition, select and calculate the composition of the Li-glass charge. In addition, the heat treatment of the obtained received samples is carried out.

Structure Formation in the Ceramic Matrices for Immobilization of Wastes Substances

The paper studies processes of structure formation at heat treatment of purification wastes of radioactive cesium waters using sorbents based on clay minerals and zeolite. We define structural and mechanical properties of simples and find the optimum conditions of their heat treatment aimed at obtaining based on crystalline structures with the most effective physical and mechanical properties. We also investigate mechanical and chemical stability of ceramic matrices formation and also strength of commitment 137 Cs in them.