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1.
MECHANISM OF REDUCING AGGLOMERATION OF YAG CERAMIC POWDERS USING AMMONIUM SULFATE DISPERSANT
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(Not-set)
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Yttrium aluminum garnet (YAG) powders were synthesized via chemical precipitation, both with and without the addition of ammonium sulfate as a dispersant. The impact of the dispersant on the particle size ...
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2.
APPLICATION OF POLYVINYLPYRROLIDONE TO IMPROVE THE OPTICAL PROPERTIES OF YAG-BASED CERAMICS
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(Not-set)
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Yttrium aluminum garnet doped with ytterbium (YAG:Yb) ceramic powders were synthesized using the chemical precipitation method, from which optical ceramic samples were fabricated. Dispersants, namely polyvinylpyrrolidone ...
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3.
OBTAINING YAG:Ce CERAMICS WITH HIGH LUMINESCENT PROPERTIES
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(Not-set)
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The precursor powder and luminescent ceramics YAG:Ce based on it were obtained by reverse chemical deposition. The influence of sintering additives (CaO, MgO and TEOS), the concentration of the activator ...
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4.
THE EFFECT OF THE RATIO OF MgO/CaO SINTERING ADDITIVES ON THE OPTICAL PROPERTIES OF YAG:Cr CERAMICS
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(Not-set)
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In this study, we investigated how the composition and ratio of sintering additives MgO and CaO influence the optical properties of ceramic materials YAG:Cr3+ and YAG:Cr4+. All samples exhibited high transparency ...
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5.
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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... (YAG 5-Yb, 1-Er) and Lu2,82Yb0,15Er0,03Al5O12 (LuAG 5-Yb, 1-Er) have been studied. It is shown that when luminescence is excited
at a wavelength of 940 nm in YAG 5-Yb, 1-Er and LuAG 5-Yb, 1-Er ceramics, ...
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6.
INFLUENCE OF SULFATE-ION ADDITIVE AT DIFFERENT STAGES OF YAG:Cr CERAMICS FABRICATION ON THE OPTICAL PROPERTIES
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(Not-set)
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In this study, the influence of the quantitative content of sulfate ions at key technological stages of the synthesis of YAG:Cr ceramic powder on the optical properties of ceramics was investigated. The ...
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7.
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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8.
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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9.
Synthesis of YAG:Er Powders for Optically Transparent Ceramics Via Glycine-Nitrate Technique
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(Science for ceramic production)
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The results of the synthesis of erbium-doped yttrium-aluminum garnet nanopowders by the glycine-nitrate method to obtain optically transparent ceramics are discussed. The effect of synthesis conditions ...
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10.
EFFECT OF TECHNOLOGICAL SYNTHESIS PARAMETERS ON THE STRUCTURE, PHASE COMPOSITION, AND PROPERTIES OF POROUS Al2O3–MgO–SiO2–SiC CERAMICS
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(Not-set)
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Porous ceramic materials based on a coarse Al2O3 filler were synthesized using fine MgO, SiO2, and SiC binders by compaction at pressures of 20…40 MPa followed by sintering in the temperature range of ...
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11.
LASER WELDING OF GLASS-CERAMICS WITH NEAR-ZERO CTE
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(Not-set)
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The process of femtosecond laser welding of lithium aluminosilicate glass ceramics was studied. The influence of laser pulse energy (1…10 µJ), scanning speed, and focusing depth on the geometrical characteristics ...
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12.
STUDY OF DEGRADATION OF LUMINESCENT PROPERTIES OF ERBIUM-DOPED ZINC-TELLURITE GLASSES UNDER TROPICAL CLIMATE CONDITIONS
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(Not-set)
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Glasses in the TeO2–ZnO system doped with Er3+, Yb3+, Nd3+ were studied. The influence of the synthesis atmosphere on the properties was determined. The photoluminescence intensity, absorption, refractive ...
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13.
FABRICATION, MICROSTRUCTURE AND PROPERTIES OF COMPOSITE OPTICAL CERAMICS YSAG:Nd3+/YSAG:Sm3+
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(Not-set)
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Nanocrystalline powders of yttrium scandium aluminum garnet (YSAG) doped with neodymium Nd3+ and samarium Sm3+ cations were synthesized by chemical precipitation. Their morphology, phase and granulometric ...
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14.
SPECTROSCOPIC PROPERTIES OF ZINC-PHOSPHATE GLASSES SINGLE-DOPED WITH Er3+ AT DIFFERENT CONCENTRATIONS
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(Not-set)
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Spectral-luminescence properties of zinc-phosphate ZnO–P2O5 (PZ) glasses doped with 0.25…1.00 mol. % Er2O3 were studied. It has been shown that an increase in the Er2O3 concentration in the synthesized ...
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15.
DETERMINATION OF THE SOLUBILITY LIMIT OF RUTHENIUM IONS IN THE STRUCTURE OF YTTRIUM-ALUMINUM GARNET
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(Not-set)
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Ceramics based on yttrium-aluminum garnet doped with ruthenium ions were synthesized. Ceramic samples were obtained by non-reactive sintering of nanocrystalline powders formed by chemical co-precipitation. ...
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16.
LOCAL ATOMIC STRUCTURE OF NEODYMIUM IONS IN ALUMOBORATE AND ZINCPHOSPHATE GLASSES DETERMINED BY EXAFS
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(Not-set)
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In this work, the local atomic structure of neodymium ions embedded in alumoborate glass (5 mol. % Nd2O3) is studied in comparison with the structure of neodymium ions in zinc phosphate glass (0.5 mol.% ...
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17.
EFFECT OF HOT PRESSING CONDITIONS OF CVD-ZnSe POWDER ON THE PROPERTIES OF OPTICAL CERAMICS
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(Not-set)
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The paper studies the effect of vacuum hot pressing (VHP) conditions on the microstructure, density, and optical properties of ZnSe ceramics. Graphite and titanium foils, as well as powdered aluminum oxide, ...
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18.
FEATURES OF GARNET PHASE FORMATION IN THE Y2O3–Lu2O3–Yb2O3–Ee2O3–Al2O3 SYSTEM IN THE SYNTHESIS OF NANOCRYSTALLINE LOW-AGGLOMERATED CERAMIC POWDERS BY COPRECIPITATION METHOD USING AMMONIUM ...
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(Not-set)
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For the first time a series of ceramic powders of the composition (Y1–xLux)3Yb0.15Er0.03Al5O12 (YLuAG) with a garnet structure in which the atomic ratio of Y3+/Lu3+ cations varied from 80/20 to 20/80, ...
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19.
PRODUCTION OF POROUS CERAMICS ?-Al2O3–3YSZ WITH ADDITIVE OF ?(?)-Al2O3
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(Not-set)
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Porous ?-Al2O3–3YSZ ceramics were fabricated using slip casting, incorporating 15 wt. % submicron Al2O3 powders as sintering additives. These orders were synthesized via solution combustion synthesis using ...
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20.
FABRICATION AND PROPERTIES OF CERAMICS/SINGLE CRYSTAL COMPOSITES BASED ON YTTRIUM ALUMINUM GARNET
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(Not-set)
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... the composition Y3Al4.995Cr0.005O12 in conjunction with a YAG single crystal. The light transmission spectra of composite samples showed absorption bands of Cr3+ after vacuum sintering and bands of Cr4+ ...
