A recipe composition of a fritted white shiny glass-crystalline glaze coating for majolica household products in the system Na 2 O? K 2 O? CaO? B 2 < / sub> O 3 ? Al 2 O 3 ? ZrO 2 ? SiO 2 . The structure of the coating is distinguished by the uniformity and uniformity of the distribution of crystalline formations throughout the entire volume of the glaze. The physicochemical properties of the muffled coating (TCLE (50.2--50.5) 10-7 K? 1, thermal resistance 150 C, whiteness 80? 82%, gloss 87? 89%, microhardness 5350? 5400 MPa) indicate rational ratio of crystalline and glassy phases in the formed glass-crystalline coating
The outer surfaces of reusable spacecraft are covered with special heat-shielding materials. These materials also need to be protected from erosion, moisture, etc. with thermal control coatings. At VIAM, a set of works has been carried out to create and improve erosion-resistant temperature-control coatings and technologies for their production and use.
The features of the use of "included pigments" for porcelain decoration are considered. The compositions of underglaze paints and colored porcelain glazes based on “included pigments” have been determined. The reasons for the occurrence of defects and the ways of their elimination are given.
The efficiency of using titanium dioxide as a muffler for obtaining glass-crystalline wear-resistant semi-fritted glaze coatings of floor tiles with the required physicochemical and operational characteristics has been established. A comprehensive study of the processes of formation of a glaze coating of the optimal composition was carried out using the methods of infrared spectroscopy, X-ray phase analysis and electron microscopy.
The results of the development of compositions of raw material compositions of transparent shiny glaze coatings used for the production of ceramic high-voltage porcelain insulators are presented. The area of ??the content of raw materials, providing the formation of defect-free coatings with the required set of dielectric characteristics, has been established.
The outer surfaces of reusable spacecraft are protected by materials made of super-thin quartz fibers. These materials required protection against erosion and moisture ingress. As a result of a set of works at VIAM, special coatings were developed based on the composition (SiO 2 - B 2 O 3 ) - SiB 4 < / sub> and technologies for their preparation and application.
Electrically conductive coatings for photovoltaic cells containing carbon nanotubes and other carbon nanostructures and SnO 2 have been obtained. The surface of the coating samples at all stages of synthesis was studied using a set of complementary physicochemical methods for studying the composition and structure of substances and materials: X-ray phase analysis (XPA), scanning electron microscopy (SEM), atomic force microscopy (AFM), optical microscopy, UV- , visible spectroscopy. In addition, the surface resistance of the obtained coatings was measured. It was found that the obtained coatings SnO 2 -nanocarbon material based on nanotubes has the lowest electrical resistance.
A solution has been developed and the process parameters have been determined that allow deposition of ceramic nanosized titanium oxide coatings that meet the requirements for adhesion layers for paint and varnish coatings.
The results of studies on the effect of oxides of group II elements, jointly introduced into the glaze mixture, on the properties of pyroxene glasses are presented. It is shown that the simultaneous introduction of two oxides of group II elements improves the adhesive properties of glasses, reduces their melting point and LTEC. The resulting glazes can be used to cover decorative ceramic items.
