VOL 92, No. 4 (2019)

The spectral-luminescent properties of potassium-aluminophosphate glass containing Eu ³⁺ ions during thermally stimulated formation of gold nanoparticles in its volume have been investigated. It is shown that the formation of gold clusters (pre-plasmonic particles) leads to an increase in the luminescence intensity of rare-earth ions, while the formation of gold nanoparticles with localized plasmon resonance leads to a decrease in the luminescence intensity.

The rheological properties of corundum suspensions have been investigated. It is shown that for the preparation of corundum slip in the preparation of ceramic highly porous permeable cellular materials (HPCM) by duplicating the structure of polymer matrices, the minimum possible ratio of the dispersed phase and the dispersion medium S: L is 2.3: 1, and the mass content of polyvinyl alcohol in corundum slip is 1... 3 & # 37 ;. It has been experimentally established that corundum suspensions with such a ratio of the dispersed phase and the dispersion medium are coagulation structures with a characteristic thixotropic behavior

The features of the effect of additives of lanthanum cations on the thermochemical behavior of modified zirconium hydroxide have been investigated. It is shown that the composition and properties of the obtained materials are determined by the concentration of the modifier and the temperature of the formation of the oxide phase

The use of alkaline glass in the construction of micromechanical sensors, in particular, accelerometers, is presented. Alkaline glass is used in the design of the sensitive elements of these devices. The main process step for assembling such sensing elements is the electrostatic connection, also known as the anode connection. At the same time, a number of complex physical effects occur in the glass. The reliability of the functioning of the manufactured devices depends on the quality of performance of parts made of alkaline glass and silicon.

A comparison is made of the main characteristics of aluminum oxides and hydroxides obtained by mechanochemical oxidation of aluminum powder, both in the initial state and after their heat treatment in the range 150 - 1100 ° C. The conditions for obtaining pseudoboehmite by thermal activation of a mechanochemically oxidized product have been established. The structure, morphology and texture of the pseudoboehmite structure of aluminum hydroxide synthesized from a mechanically oxidized product and aluminum oxides obtained on its basis in the temperature range 450 - 1100 ° C are characterized.

The increased carbon content (9.59 & # 37;) in the inclusions indicates the introduction of fuel into the raw material, which increases the porosity of the products and contributes to the uniform sintering of ceramics, and the increased content of alkali oxides (R ₂ O> 4 & # 37;) - the formation of a glass phase up to 1000 & # 176; С. X-ray phase analyzes showed the presence of: anorthite, hematite and wollastonite, which contribute to an increase in strength indicators. In addition, the presence of isometric pores and oval closed porosity in ceramic specimens contributes to an increase in durability.

The possibility of using (2.5 - 10 & # 37; by weight) wastes from the production of paraffin wax (OPP) in the production of porous ceramics has been investigated. Additive 2.5 & # 37; OPP increases the compressive strength of the ceramic. Increase in OPP to 10 & # 37; significantly increases the apparent porosity of the ceramic

The creation of reaction-cured coatings is a promising direction in the field of protection of metallic and non-metallic structural materials during operation in aviation technology. The main feature of these coatings is the possibility of their formation (firing) at temperatures close to operating temperatures, while increasing their temperature resistance.

April 27, 2019 marks the 75th anniversary of Mikhail Nikolaevich Pavlushkin - Vice-President of the Association National United Council of Glass Industry Enterprises & # 171; GlassSoyuz & # 187; Russia, an honorary worker of the glass industry in Russia.