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It is demonstrated that the density of binary glasses upon variation of the molar content of the modifier in their compositions obeys a parabolic dependence, whose parameters can be used to estimate the extent and type of reactions between the components. The reaction parameters in glasses that are prone to liquation are lower by an order of magnitude and have the negative sign. [ABSTRACT FROM AUTHOR]

Based on experimental materials on the kinetics of dissolution of silica grains accumulated in the literature, a generalized dependence is obtained, according to which kinetic dissolution curves in diffusion mass exchange are uniquely determined by the chemical composition (silica modulus), the melting temperature, and the initial granulometric composition of silica-bearing batch components. [ABSTRACT FROM AUTHOR]

Comparative testing of laminated glass made up by different combinations for impact resistance has been performed. The testing corroborates the possibility of using glass subjected to special thermal treatment (STT) in the production of impact-resistant laminated glass. Glasses based on STT glass satisfy the impact resistance requirements of GOST R 51136-98, and their thickness and weight are a factor of 1.5 less. [ABSTRACT FROM AUTHOR]

Principles for producing optically transparent glass ceramics from industrial waste are considered. The intensity of their transmission spectra in the visible spectrum range and the temperature dependence of the logarithm of volume resistivity, thermal conductivity, and TCE are considered. It is demonstrated that adding 30% lithium oxide to the glass-ceramic composition decreases its TCE. [ABSTRACT FROM AUTHOR]

Relationships serving as the basis for the calculation of optimum glass-annealing regimes are analyzed. The method for the calculation of optimum cooling regimes is extended to the general case of heat treatment of glass, including the heating, exposure, and cooling stages. [ABSTRACT FROM AUTHOR]

The experience of using lightweight and heavy soda produced by Soda JSC (Sterlitamak) and technical soda ash of grade 2 based on nepheline material produced by the Achinskii Alumina Works in a continuous process of producing light-heat-shielding bulk-tinted float sheet glass is considered. The advantages and disadvantages of alkali materials are analyzed. The specifics of preparing batch and glass melting using various types of soda are investigated. [ABSTRACT FROM AUTHOR]

Contemporary methods for frosting glass and glass articles are analyzed. The results of studies of frosting household glassware by plasma spraying of copper are described. [ABSTRACT FROM AUTHOR]

It is found that the technological conditions for the formation of self-purifying coating depend on the sintering interval of the vitreous phase and its dispersion. The most porous coating with the maximum effect of self-purification (96 – 98%) was obtained on introducing 12 – 14 parts by weight of sodium silicate solution into the coating slip. The optimum coating structure provides for decomposition of food fats after multiple thermal cycling. [ABSTRACT FROM AUTHOR]

The results of studying the production of porous glass ceramic materials with a permeable structure by the directed crystallization method of a set of phases are presented. The phase composition of materials is studied using x-ray phase, x-ray fluorescence, and electron microscope analysis; microstructural specifics are investigated. The prospects for using materials synthesized as filters for the purification of various media are established. [ABSTRACT FROM AUTHOR]

The effect of the duration of treatment of the surface of soda-lime glass in potassium and lead nitrate melts at a temperature of 460°C on the chemical and mechanical strength is investigated. It is demonstrated that the formation of a crystalline lead-silicate coating in this treatment increases the alkali resistance threefold and the mechanical strength of glass twofold. Practical recommendations are issued. [ABSTRACT FROM AUTHOR]

The specifics, advantages, and technological parameters of producing reflective and low-emission glasses using pyrolytic methods in the course of float glass production are considered. [ABSTRACT FROM AUTHOR]

Aspects of upgrade and development of electric weighing cars for preparation of glass batches and multicomponent mixtures in the production of refractories and ceramics are considered. [ABSTRACT FROM AUTHOR]

A new design for a manipulator turrent intended for the fixation of large-size windshield glasses in bending is considered. The device allows for gripping a flat glass packet (glass + film + glass) before bending, as well as molded glass after bending, and placing it on a carrier car. The kinematic scheme and the layout of the device are presented. [ABSTRACT FROM AUTHOR]

The structure of multicomponent sodium-borosilicate glasses is investigated using the IR spectroscopy method, and their physicochemical properties are identified. It is demonstrated that enamels for protecting pipes used in the oil sector can be obtained on the basis of these glasses. [ABSTRACT FROM AUTHOR]

Anion structure coefficients (ASC) are given for solid solutions synthesized on the basis of stoichiometric compositions with a ratio of Li2O : Al2O3 : SiO2 equal to 1 : 1 : 4 – 1 : 1 : 12. A fundamental possibility of selecting the residual vitreous phase and predicting the process of sintering of glass powders by calculating the ASC of the initial compositions and the residual vitreous phase in developing glass ceramic materials with preset properties is demonstrated. [ABSTRACT FROM AUTHOR]