Reliable protection of the screens of new generation mobile devices requires the use of transparent materials that are stronger than glass. In this work, the influence of sitallization conditions on the structure and properties of sitall based on the ZnO - MgO - Al 2 O 3 - SiO 2 system is studied and is shown the prospects of its application for these purposes. Optimization of the sitallization mode allows increasing the microhardness of the material to values ??of more than 900 HV while maintaining transparency
The prospects of using recycled carbon fiber extracted from aviation carbon fiber waste for reinforcing composite materials based on blast-furnace slag activated with sodium silicate solution are evaluated. The influence of the concentration and length of the secondary carbon fiber on the structure, physical and mechanical properties and the nature of the destruction of dispersed-reinforced composites has been investigated.
The possibility of obtaining lightweight porous proppants based on metallurgical slags has been investigated. The structure, phase composition and some operational and physical properties of the obtained spheroidized bodies have been studied.
The possibilities of strong local bonding of glasses and metals with close thermal expansion coefficients by means of welding with a femtosecond laser beam have been investigated. For the first time, measurements of the shear strength of a welded joint of quartz glass with an Invar alloy, which amounted to about 26 MPa
Powders of composition La 1 & ndash; x Sr (Ca) x CoO 3 (x = 0.2) was obtained using the sol-gel method. To dry the gels, a microwave installation (radiation power 90 W, frequency 2450 MHz) and a drying oven (temperature 180 ° C) were used. Using the methods of thermogravimetry and differential scanning calorimetry, X-ray phase analysis, transmission electron microscopy, the properties, phase composition and morphology of particles of the obtained powders of complex composition were investigated.
The processes of femtosecond laser recording of luminescent microregions in silicate glass with a mass content from 0.5 to 4.0 & # 37; cadmium sulfide. The regularities of the change in the optical properties of microregions on the composition of the glass and the acting dose of laser radiation have been established.
The object of research is ceramic foam materials based on aluminum oxide, magnesium oxide and aluminum-magnesia spinel. The results of research on sintering spinel ceramics using aluminum and magnesium oxides as initial components are presented. It is shown that the optimal range of firing temperatures for obtaining materials with an open-cell pore structure is 1600 - 1700 ° C. Materials with communicating porosity up to 85 & # 37; and compressive strength up to 1.4 MPa
Experimental results on the synthesis in a cubic apparatus of composites based on diamond-like boron nitride cBN in the cBN-Al-TiC system are presented. It is shown that with an optimal ratio of the number, size and mutual arrangement of particles of a superhard material and a nanostructured binder, it is possible to achieve a high level of properties without the obligatory intergrowth of particles of superhard cBN-cBN crystals with each other. The composites were sintered at a pressure of 4.5 GPa and a temperature of 1450 ° C. The selected thermobaric parameters ensured the completeness of the reaction interaction, the uniformity of the phase composition and physical and mechanical characteristics in the entire volume of large-sized composites.
An overview of research in the field of utilization of large-scale industrial waste in the production of granular and block foam materials is presented. The possibilities and prospects of obtaining materials with high technical and operational properties and reducing the load on the environment are shown.
A technology for glazing ceramic tiles has been developed using alternative energy sources and glass household waste. The effect of a plasma jet on the change in the chemical composition of materials for glazing ceramic tiles has been investigated. The experimentally obtained data on the operational properties of ceramic tiles are presented.
