VOL 80, No. 9 (2007)

The results of the study of the micro- and macroscopic structure of foam glass with different characteristics are presented. Tab. 1, ill. 3, bibliography: 3 titles.

A borosilicate mixture obtained in an aqueous medium has been studied by IR spectroscopy. A technique has been developed for determining the individual bands of sodium borosilicate in the presence of the most probable impurities - boric and silicic acids, borate and sodium silicate. The technique is based on calculating the absolute degree of difference between wave numbers and band intensities. It was found that some of the bands of the five-component mixture are indistinguishable in their position in the IR spectrum and intensity and are unsuitable for analysis. The bands at 653, 1164, 3300, and 3729 cm ^-1 are indistinguishable in wavenumbers, but differ in intensities, so they can be conditionally applicable for identifying sodium borosilicate. Tab. 2, ill. 3, bibliography: 6 titles.

The processes of synthesis of ceramic pigments at equimolecular ratios of oxides (Nd ₂ O ₃: P ₂ O ₅, Nd < sub> 2 O ₃: ZrO ₂, Nd ₂ O ₃: TiO ₂). It is shown that such ratios of oxides make it possible to obtain pigments of different palettes suitable for coloring glazes. Tab. 1, ill. 2, bibliography: 3 titles.

The use of unconventional electrolyte DULAPIX Ca in the process of liquefaction of the majolica mass allows to reduce the moisture content of the slip. The degree of moisture reduction in the slip depends on the hardness of the water: the higher its hardness, the higher the electrolyte content in the slip. Therefore, in the production of majolica slip, it is necessary to control the water hardness and use softened water. Tab. 1, ill. 1.

Compositions of multicomponent suspensions based on boehmite in the range of pH of the dispersion medium from 1.5 to 5.4, methods of stabilization of cerium- and platinum-containing suspensions and application to a block cordierite carrier have been investigated. The optimal conditions for the preparation of suspensions and one-stage production of highly porous, strong and uniform coatings of the Pt - СеО ₂ - & # 947; -Al ₂ O ₃ system have been established. with a high yield and having a specific surface area of ??150 - 170 m ² / g. Tab. 2, ill. 3, bibliography: 5 titles.

Compositions of single-layer glass enamels have been developed, which make it possible to obtain a wide range of colors of coatings for steel products with a sufficiently good surface quality. Various dyes have been tried. The properties of coatings, such as chemical resistance, adhesion strength, gloss and heat resistance, have been studied; the temperature range of their firing has been determined, averaging 670 - 740 ° C. The colorimetric characteristics of single-layer enamels have been calculated. The resulting enamel coatings can be used in mass production. Tab. 1, ill. 2, bibliography: 2 titles.

It has been established that the modification of the surface of nickel-plated hollow glass microspheres with N-oxide-Cl-alkyldimethylamine leads to a recharge of their surface and, as a result, to an improvement in the wetting of solid phase particles with a water-based paint based on acrylic latex. Coatings based on conductive paint are characterized by high electrical conductivity. The developed paint can be used to protect people and technology from electromagnetic radiation. Bibliography: 6 titles.

Experimentally substantiated recommendations on the choice of compositions and technologies for the synthesis of glass-soldering compositions with specified properties within the limits of soldering temperatures 390 - 450 ° C and TLEC (60... 70) & # 215; 10 ^-7 K ^-1, designed for sealing ceramic packages of integrated circuits. Tab. 5, ill. 4, bibliography: 6 titles.

Facing and decorative glass-crystalline materials have been developed on the basis of mineral raw materials and industrial waste. The influence of the components present in mineral raw materials on the processes of liquation and crystallization of glasses has been studied. The resulting materials can be used in construction for wall cladding. Tab. 3, ill. 3, bibliography: 3 titles.

A fundamentally new complex for the production of silicate melt from ash waste has been proposed. A mathematical model is formulated that describes the process of melting a charge in a furnace using combined sources of thermal energy - electric and gas. Il. 2, bibliography: 7 titles.