VOL 88, No. 10 (2015)

The main types of glass staining, redox interactions are considered. Kinetic dependences are given, the conditions for the implementation of processes with the participation of dyes in the charge and melt, during glass hardening in the process of forming products, are analyzed. The spectral characteristics of industrial glasses are analyzed. The possibility of assessing the light-shielding characteristics and thermal transparency of colored glasses used in the production of glass containers is shown.

Generalized information on the structure of alkaline-borate compounds and glasses is presented, as well as data on the study of the properties and structure of bismuth borate compounds and glasses based on them in double and ternary systems. The intensification of research in the field of bismuth-containing borate systems has stimulated the creation of a number of new glass compositions that are distinguished by low melting point, special electrical properties, a high transparency region, and nonlinear optical properties.

The Judd-Ofelt parameters have been calculated for Tb ³⁺ ions in yttrium-aluminum borate glasses co-activated with Tb ³⁺ and Ce ³⁺ (X1) and activated only Tb ³⁺ (X2). The received parameters are: & # 937; ₂ = 5.45 * 10-20, & # 937; ₄ = 2.82 * 10-20, & # 937; ₆ = 3.76 * 10-20 cm2 for X1 and & # 937; ₂ = 4.99 * 10-20, & # 937; _{4 < / sub> = 2.18 * 10-20, & # 937; 6 = 3.51 * 10-20 cm2 for X2. It is shown that these glasses are promising for the development on their basis of converters of UV radiation into the green-yellow region of the spectrum.}

The obtained ceramic material of the composition 0.5SrTiO ₃? 0.5Y _0.1 Zr _0.9 O ₂ and the features of its dielectric properties and electrical conductivity have been established. It was found that the material consists of two phases: the cubic Fm phase of zirconium dioxide stabilized by yttrium and the tetragonal I4 / mcm phase of the solid solution SrTi ₁ - _x Zr _x O ₃. At T> 500 K, dielectric relaxation with an activation energy of the process ~ 1.1 eV, which is characteristic of titanium-containing compounds with a perovskite structure, is found. Above ~ 700 K, the specific electrical conductivity of the samples under study increases significantly, which may be associated with an increase in ionic conductivity. The activation energy of electrical conductivity was ~ 1.2 eV, which is consistent with the value of the activation energy of ionic conductivity of zirconium dioxide

The dependences of the microstructure and physicomechanical properties of ceramics based on Si ₃ N ₄? TiN are considered in a wide range of mass ratios of components. The sintering process and the physical and chemical processes occurring at the same time, in particular, the dependence of the hardness and density of the material on the ratio of the conducting phase of titanium nitride and the dielectric phase of silicon nitride with values ??above and below the percolation threshold has been investigated. Obtained ceramics based on pure titanium nitride with high physical and mechanical characteristics (H = 21.5 GPa)

The composition of the elements of a compact fluorescent lamp is described. The functions and requirements for the bulb, phosphor layer, electrodes and other parts of the lamp are given. Improved technologies for the production of elements of a compact fluorescent lamp are proposed, which can significantly improve the quality of manufactured lamps, increase their service life and significantly expand their practical application.

Gas transport reactions are widely used in the chemistry of solids, since the direct interaction of solid phases with each other is difficult. The developed process of enrichment of kyanite concentrate, supporting the rational direction of the gas transport reactions, made it possible to obtain a product with a high content of aluminum oxide (99%) and a low content of silicon, iron and titanium oxides.

Principles have been formulated and an applied method has been developed to substantiate rational parameters for air cooling systems of critical zones of the melting basin of glass-making furnaces, which allows minimizing the power consumption of blowers.