VOL 86, No. 7 (2013)

The possibility of using fractal analysis in describing the structure of foam glass is shown, for the quantitative assessment of which, under a fixed effect of various technological factors, it is proposed to use the value of the fractal dimension. The relationship between the fractal dimension and the main technical characteristics of foam glass has been established.

The possibility of obtaining ceramics based on silicon carbide by liquid-phase sintering by modifying it with additives of eutectic compositions is considered. It is shown that the synthesized samples are not inferior in properties to similar samples of silicon carbide obtained by reaction sintering, and from the point of view of energy efficiency they are superior.

The possibility of using sewage sludge from electroplating industries in the production of expanded clay has been studied. The relationship between the physicochemical and operational characteristics of the porous aggregate with their chemical-mineralogical and phase composition, structure and heat treatment regime has been established. The migration of ions of heavy metals from expanded clay into water extracts has been studied and the technological modes of obtaining environmentally safe products have been determined.

The characteristic features of the structure of porcelain articles made by various molding methods have been studied. The possibility of identifying the molding method has been established. The effect of the structure of the molded article on the formation of the glaze layer is noted. It is confirmed that the structure of the finished product inherits the character of the texture of the original mass.

The mechanism of sintering and the features of structure formation in liquid-phase sintered silicon carbide and sintered silicon nitride have been investigated. The formation of the core structure (grains SiC or Si ₃ N ₄) - boundary layer (SiC-oxides or SiAlON) - intergranular phase (oxides) was recorded.

An engineering method is proposed for calculating the temperature of the masonry of the regenerator of a glass-making furnace. Recommendations on the structure of the packing of a single-turn regenerator of a U-shaped flame furnace are given.

Electrically insulating glass-ceramic coatings with operating temperatures up to 400 ° C for stainless steel substrates have been developed. Their physical and chemical properties have been investigated.

The results of simulation modeling of the technological process control for the production of sheet glass by the float method are presented. the effectiveness of a systematic approach to management is shown, which allows to comprehensively solve the problems of economical use of raw materials and energy resources in production while ensuring high quality of the produced glass and limiting the negative impact of production on the environment.