VOL 90, No. 9 (2017)

Various methods of forming glassware, their physicochemical and technological features are considered. At the same time, the structural and deformation characteristics of glass-forming melts, the performance characteristics of glasses, and conditions for forming under isothermal and non-isothermal conditions are noted. An extended classification of molding processes is presented.
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The possibility of increasing the strength characteristics of ceramics by introducing a ceramic-forming polymer polydimethylsilane into the charge is considered. When polydimethylsilane is introduced into the composition in the presence of a catalyst of molybdenum chloride, the transition of polydimethylsilane to polycarbosilane is observed, followed by the transition of the latter to silicon carbide. It is shown that the introduction of this additive at a mass content of more than 4% leads to an increase in strength characteristics, a decrease in open porosity.

A sol-gel synthesis was carried out by the eutectic composition method in the ternary oxide system MgO-Al ² O ³ -Y ² O ^{3 Used as a sintering aid for silicon carbide ceramics. A laboratory method for the manufacture of an additive is proposed, the effect of the synthesis temperature on the properties of powders is assessed.}

The coatings on glass witness samples were investigated, which made it possible to record the technological modes of their application, as well as the parameters of the installation: operating current, voltage, limiting and operating vacuum, the required number of coating layers. Measurement of the resistance of metallized coatings on nonwoven materials obtained under certain conditions showed a value from 32 to 11 Ohm / cm ², which was set by the conditions of the experiment

Analyzed are the mass-operational characteristics of the magnetic control of ferro-impurities of raw materials (quartz sand, feldspar, gypsum), obeying the exponential both completely and partially (tail section), when the use of an experimental-calculation model for controlling ferro-impurities is possible taking into account the corresponding amendments. On the example of using different field sources, it is shown that the results of magnetic control with a limited number of operations differ significantly among themselves, and with an unlimited one (experimental calculation method), despite the change in the & # 171; form & # 187; mass-operating characteristics remain practically the same

On the basis of oxides of zirconium, titanium and aluminum, a method has been developed for producing porous ceramics biocompatible with living tissues by introducing calcium phosphates into the volume of ceramics. The bioactive coating is formed directly during the manufacturing process of the sample. The resulting two-phase ceramic is characterized by a developed microrelief. Specimens meet the mechanical specifications for bone replacement implants

Using thermodynamic calculations, the sequence of formation of crystalline phases during heat treatment of composite mixtures glass 0.5MgO 0.2BaO 0.3 ₂ O ₃? kaolin. It is shown that the primary crystalline phase is Celsian, and the secondary? cordierite