VOL 91, No. 1 (2018)

The compositions of glasses for the manufacture of hollow glass microspheres have been developed. The main physical and technical characteristics have been studied and the dependences of properties on the composition of glasses have been established. The influence of rheological properties of glasses near liquidus temperatures on the processes of release of gases previously dissolved in glass is shown. The possibility of obtaining hollow glass microspheres with a size of 20 - 200 microns has been established.

The analysis of methods for monitoring the stress-strain state of transparent elements for special glazing used in aviation, as well as for inclusion in the composition of transparent armor is presented. The data of control of samples of satellites of chemically hardened glass obtained using a scattered light polariscope and a destructive method of centrally symmetric bending are presented. Based on these data, conclusions were drawn about the possibility of using non-destructive testing methods as indicators of the stress-strain state of the glass surface.

Research has been carried out in the development of a new technology for producing foam glass from materials containing natural amorphous silica. The optimal technological parameters for obtaining products with a given geometric shape and dimensions are shown. The theoretical substantiation of the organization of technological processes is given. The results of studies of the properties of the materials obtained are presented.

It is proposed to control the redox conditions of porcelain firing in sity (& # 171; in place & # 187;) by reflection spectra in the UV-VIS-NIR region. The difference in color characteristics of glazed porcelain has been shown to be correlated with reflection at .lambda; & # 8776; 1100 nm, which depends on the Fe ²⁺ / Fe ³⁺ ratio, mainly in the glaze composition. It was found that with an increase in the intensity of the band of the optically active center of Fe ³⁺ luminescence, the reflection coefficient of glazed porcelain at? & # 8776; 1100 nm

The results of the study of solid-phase synthesis and technological parameters for obtaining weather-resistant ceramic pigments of gray, gray-yellow and gray-brown colors are presented. The physicochemical and technological properties of the synthesized pigments have been investigated.

Samples of supports for membrane catalysts using a boehmite suspension were synthesized on the basis of alumina. The morphology, phase composition and porous structure of the carriers have been investigated.

The properties and advantages of fiberglass and carbon fiber reinforced plastics, as well as the directions of their use in the construction of vehicles are considered. The possibility of increasing the utilization of vehicles at the design stage through the use of easily recyclable materials is discussed. The analysis of the known methods of handling fiberglass waste is carried out and the need to develop effective industrial technologies for the disposal of these materials is shown.

The processes occurring during the formation of hollow microspheres based on ash and slag waste from thermal power plants of the Kemerovo region in a thermal plasma flow are considered. The results of physical and chemical studies (scanning electron microscopy, energy dispersive X-ray and infrared spectroscopy) of the raw material and the resulting microspheres on its basis are presented. A comparative analysis of hollow microspheres obtained by the traditional method in chamber furnaces of thermal power plants of the Kemerovo region and microspheres obtained using thermal plasma has been carried out.