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1.
The Processes of Gelation, Phase Formation and Sintering in the Process of Synthesis by the Sol-Gel Method of Aluminosilicate Glass-Ceramic Modified with Refractory Hafnium and Zirconium Oxides
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(Glassceramics)
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... HfO 2 in the presence of stabilizing yttrium oxide and without it. It is shown that the introduction of refractory oxides contributes to a reduction in the gelation time of the initial solutions, intensifies ...
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2.
Formation of the Structure
of Cast Glass-Crystalline Spinelide-Pyroxene Materials under
Non-Equilibrium Crystallization
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(Not-set)
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The method of image analysis revealed how non-equilibrium solidification conditions (contact with air, with a mold, without contact) affect the macrostructural parameters of glass-crystalline spinel-pyroxene ...
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3.
Drilling of Porous Aluminosilicate Ceramics
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(Not-set)
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The features of laser drilling of composite highly porous ceramics consisting of aluminosilicates, glass and a small addition of polystyrene (EPS) are studied experimentally. It was found that the formation ...
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4.
Interaction of Alkaline Medium of Concrete with Foam Ceramics
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(At the enterprises and institutes)
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... aggregates are chemically active. Transformations of foam ceramics include gelation of the pore walls with the formation of an alkaline aluminosilicate gel followed by its crystallization. This ensures ...
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5.
Peculiarities of heat-insulating materials macrostructure based on mullite-corundum composition
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(At the enterprises and institutes)
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The features of the macrostructure of rigid heat-insulating materials based on fibers of mullite-corundum composition are considered, the change in the physical and mechanical properties of materials over ...
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6.
Anion-exchange synthesis of spinel-type cobalt pigments
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(Coatings)
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The synthesis of ultramarine blue pigment is proposed by coprecipitation of cobalt and aluminum from nitrate solutions with anionite AB-17-8 in the OH-form, followed by calcining the precursor at 750 ° ...
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7.
Ceramics based on zirconates, titanates and stannates of rare-earth elements
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(Science for ceramic production)
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The solid-phase synthesis of gadolinium titanate, stannate and zirconate has been studied. It was shown that these compounds can be obtained at 700 ° C. Obtained ceramics based on Gd 2 Zr 2 O 7 , ...
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8.
Formation of glass synthesized by sol-gel technology
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(Science for glass production)
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Based on the analysis of the EPR spectra, the process of glass synthesis by the sol-gel method is studied. The processes of gelation and formation of xerogels are considered depending on the temperature-time ...
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9.
Recovery of natural wollastonite-based ceramic pigments using gel-sol method
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(Coatings. Enamels.)
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... the color characteristics of pigments that have passed the stage of gelation are improved. The use of the gel method does not require cardinal changes in the technological scheme and the equipment used, ...
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10.
Special kinetic features of synthesis of the luminescent materials using sol-gel method
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(Science for glass production)
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Using the sol-gel method of obtaining luminescent silicate materials, the kinetics of the process at the initial stages of hydrolysis and polycondensation of tetraethoxysilane at different temperatures ...
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11.
Production of silicate coating on the base of glass-forming colloids
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(Coatings. Enamels.)
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The compositions and the principle of preparation of glass-forming colloidal solutions, resistant to gelation, based on tetraethoxysilane are presented. The processes occurring during the heating of the ...
