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1.
INVESTIGATION OF LUMINESCENT PROPERTIES OF OPTICAL CERAMICS BASED ON YAG AND LuAG CO-ACTIVATED Yb3+ AND Er3+
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(Not-set)
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For the first time, optical ceramics based on LuAG were obtained, simultaneously doped with Yb3+ and Er3+ ions. The optical, spectral-luminescent and kinetic characteristics of ceramics Y2,82Yb0,15Er0,03Al5O12 ...
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2.
CHARACTERISTICS AND MORPHOLOGY OF THE PORE SPACE OF SYNTHETIZED HIGHLY POROUS Sc2O3 CERAMIC MATERIALS
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(Not-set)
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An energy-efficient synthesis of highly porous ceramic materials based on Sc2O3 was carried out using a combination of compaction and technological combustion methods with the participation of active binders. ...
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3.
INFLUENCE OF YAG CERAMIC POWDERS GRINDING CONDITIONS OF ON THE PROPERTIES OF OPTICAL CERAMICS
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(Not-set)
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In this study, the changes in the morphology and degree of agglomeration of both precursor powders and ceramic YAG powders under varying grinding conditions was considered. The effect of these parameters ...
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4.
THE COMBINED EFFECT OF SINTERING ADDITIVES MgO AND TEOS ON THE STRUCTURE AND OPTICAL PROPERTIES OF CERAMICS YAG:Yb, Er
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(Not-set)
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In this work, the effect of sintering additives based on magnesium oxide (MgO) and silicon oxide (TEOS) in concentrations from 0.02 to 0.10 wt. % and 0.2 to 0.5 wt. %, respectively, was investigated on ...
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5.
Zirconia/Alumina Ceramic Composites Containing Strontium Hex-aaluminate
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(Not-set)
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The preparation and mechanical properties of composites 20 & # 37; molar fraction of Al 2 O 3 and 80 & # 37; [3Yb & # 8211; TZP] modified with strontium oxide. It is shown that in the process of heat ...
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6.
Pulsed Laser Punching of Holes in Ceramic Parts
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(Not-set)
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Within the framework of the theory of developed evaporation of matter under the action of laser radiation, the problem of assessing the strength of ceramic parts of a cylindrical shape during laser punching ...
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7.
Chemical Transformations as a Tool for Managing the Properties of Calcium Carbonate Powder
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(Not-set)
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Powder of calcium carbonate CaCO 3 (calcite) with a particle size of 100-200 nm and a shape close to isometric was obtained by heat treatment at 600 ° C of a product synthesized from a 2M aqueous solution ...
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8.
Ceramic Material Composite on the Basis of Silicon Carbide with Eutectic Additives
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(Science for ceramic production)
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Composite ceramics of granular silicon carbide, precipitation hardened by eutectic additives of the Al 2 O 3 -MnO-TiO 2 system, have been obtained. The effect of a dispersed eutectic powder in the ...
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9.
Studies in high-performance alumina ceramics development (review). Part 1. Sintering with additives, reactive sintering, reinforced composites production
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(Science for ceramic production)
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A review of domestic dissertations on ceramics from aluminum oxide, methods of its preparation for the period since 2000 is presented. Thin structural ceramics are mainly considered. The emphasis is on ...
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10.
Phase composition of calcium phosphate ceramics made from nanopowders with Ca/P ratio of 1,25 obtained by mechanoactivation
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(Biomaterials)
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The processes occurring at the stages of mechanical activation of powders and firing of samples pressed from calcium phosphate nanopowders with a molar ratio of Ca / P = 1.25 have been studied. Washing ...
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11.
Disperse hardening of aluminum oxide composite system and tetragonal zirconia stabilized with cerium cations
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(Science for ceramic production)
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The preparation of composites based on nanopowders synthesized by the sol-gel method in the system of aluminum oxide and tetragonal zirconium dioxide stabilized by cerium cations (Al 2 O 3 - [Ce-TZP]) ...
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12.
Landmarks in cooperation between D. Mendeleyev University de-partment of ceramics and refractories and Glass and Ceramics
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(Jubilee)
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The research results of the Russian Chemical Technical University named after V.I. DI Mendeleev in the field of obtaining modern ceramic materials with high performance properties. The technological features ...
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13.
Destruction duration and deformation for dense polycrystalline oxide ceramics up to 1600 °С
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(Science for ceramic production)
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The indicators of long-term strength (time and deformation to failure) of dense-sintered oxide ceramics in the temperature range 1400 - 1600 ° C at loads up to 60 MPa have been determined. There is a relationship ...
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14.
Continuous strength of dense polycrystalline magnesia ceramics up to 1600 °С
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(Science for ceramic production)
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Experimental data on determining the long-term strength (time and deformation to fracture) of half-sintered periclase ceramics at temperatures up to 1600 ° C at loads of 20 - 50 MPa are presented. It is ...
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15.
Formation of nickel, cobalt and aluminium-based porous materials in self-propagating high temperature vacuum synthesis
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(Science for ceramic production)
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As a result of calculating the influence of the volumetric effect of a chemical reaction on the porosity of the formation of the final product for the Al-Ni-Co system in vacuum, it is shown that the synthesized ...
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16.
Structure and properties of nanoporous Al2O3-based ceramics fabricated by isostatic pressing
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(Science for ceramic production)
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Nanoporous ceramics with a pore volume of about 60% were obtained by isostatic pressing from Al 2 O 3 nanopowder. The study of the microstructure, porosity and strength of the obtained ceramics has ...
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17.
Features of creep in polycrystal oxide ceramics at a temperature below 1600°C
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(Science for ceramic production)
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The results of studying the creep of polycrystalline ceramics based on metal oxides at temperatures up to 1600 ° C and high loads are presented. These temperatures are in the vicinity of the transition ...
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18.
Features of deformation and fracture of polycrystalline oxide ceramics at temperatures up to 1600 °C
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(Science for ceramic production)
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In the temperature range 1400 - 1600 ° C, the deformation of polycrystalline oxide ceramics occurs due to the action of diffusion mechanisms. The course of the deformation curves is very sensitive to the ...
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19.
Features of sintering oxide ceramicsx
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(Science for ceramic production)
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The sintering process of powder workpieces based on oxide ceramics is considered from the standpoint of diffusion mass transfer. In practice, two types of powders are used, differing in manufacturing methods. ...
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20.
Morphological properties nanopowders of the system ZrO2 - СеО2 and characteristics of ceramics
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(Science for ceramic production)
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The dimensional and morphological parameters of nanopowders of the ZrO 2 - СеО 2 system obtained from carbonate and hydroxide precursors have been investigated. The effect of the nature of the precipitant ...
