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21.
Synthesis and Spectral Properties of Glasses in Bismuth Oxide ? Germanium Oxide ? Cerium Oxide System
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(Not-set)
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Bismuth-germanate glasses doped with cerium oxide have been synthesized. The effect of adding cerium oxide on the spectral properties of bismuth-germanate glasses has been studied. The concentration range ...
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22.
Hybrid Ultra Low-Radioactive Material Based on Gadolinium for Protecting Dark Matter Detector from Background Neutrons for DARKSIDE20K Project
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(Not-set)
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A laboratory technique has been developed for obtaining an ultra-low-background hybrid material based on organic glass - polymethyl methacrylate (PMMA). 157 Gd nuclei are used as an effective absorber ...
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23.
High Purity Tungsten (VI) Oxide for Producing Advanced Laser Materials
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(Not-set)
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A method for obtaining high-purity tungsten (VI) oxide based on two-stage sublimation purification has been developed. An impurity analysis of commercial preparations of tungsten (VI) oxide by inductively ...
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24.
Identification of Porcelain Products by Non-Destructive Optical
Spectroscopy Methods
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(Not-set)
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The results of a study of the use of non-destructive contactless methods of optical spectroscopy - registration of diffuse reflectance spectra in the UV-VIS-NIR range and photoluminescence for the identification ...
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25.
The Glasses, which Weakens Electromagnetic Radiation
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(Not-set)
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A radio-absorbing glass, transparent in the visible region of the spectrum, has been developed. The radioprotective effect was obtained by implanting accelerated ions of transition elements into the surface ...
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26.
Development and Research of Properties of Impact-Resistant Ceramic Nanocomposite Coat-ings for Silicon
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(Not-set)
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... on the surface of single-crystal m-Si, are presented. In the course of the studies carried out, it was found that the light transmission coefficient in the visible region of the spectrum for coatings Al-Si-N ...
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27.
Near-Infrared Raman Spectroscopy of Graphitic B-C-N-Materials
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(Materials and properties)
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Raman scattering (RS) studies of graphite-like phases BC x N (g-BC x N) obtained by various methods were carried out using an excitation laser operating in the near infrared range. The most typical ...
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28.
Optical control of porcelain firing conditions
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(Science for ceramic production)
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It is proposed to control the redox conditions of porcelain firing in sity (& # 171; in place & # 187;) by reflection spectra in the UV-VIS-NIR region. The difference in color characteristics of glazed ...
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29.
Ceramic pigments of black color based on chromium-nickel spinel NiCr2O4
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(Science for ceramic production)
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The possibility of obtaining a black pigment based on nickel chromite (NiCr 2 O 4 ) is considered. The morphological, granulometric, X-ray structural and optical characteristics of the synthesized crystalline ...
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30.
Trivalent chromium ions luminescence in mullite at kaolin firing
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(Science for ceramic production)
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The luminescence spectra of samples of baked kaolin are investigated. It is shown that the obtained radiation corresponds to the luminescence of Cr 3+ ions in mullite. The effect of the firing temperature ...
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31.
Photoluminescence centres in porcelain
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(Science for ceramic production)
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Porcelain samples were studied by the method of time-resolved luminescence with excitation by a molecular nitrogen laser. In the photoluminescence spectra of hard, soft and bone china, a combination of ...
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32.
Optical glass polished surface protection from environmental factors
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(At the enterprises and institutes)
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It was found that the processing of polished surfaces of optical parts made of silicate glass in hexamethyldisilazane vapor leads to the creation of a protective film that prevents the effects of the environment. ...
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33.
Zircon synthesis and properties of a phosphor based on it [15-19]
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(Science for ceramic production)
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The conditions for the synthesis of zircon crystals from a solution in a melt have been studied. The use of CaCl 2 as a flux is proposed. Samples of luminescent zircon were obtained upon activation with ...
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34.
Synthesis of luminescent glass-crystalline materials activated by europium ions using organosilicon compounds [11-14]
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(Ceramic materials)
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... blue LEDs are inherent in materials synthesized at 1100 ° C. In this case, strong luminescence is inherent in trivalent europium ions (peaks at 591, 616, and 655 nm) in the red region of the spectrum and ...
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35.
Phase composition and porous structure of centenarian ceramic bricks found in a catholic church, in Iviron convent and Rozhdestvenskaya church in Samara
region
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(At the enterprises and institutes)
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It was determined by X-ray phase and IR spectroscopic methods of analysis that the strength properties of ceramics, which served for more than 100 years in the buildings of the Catholic Church, the Iversky ...
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36.
Spectroscopic features of terbium- and cerium-activated yittrum-alumoborate glasses
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(Science for glass production)
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The Judd-Ofelt parameters have been calculated for Tb 3+ ions in yttrium-aluminum borate glasses co-activated with Tb 3+ and Ce 3+ (X1) and activated only Tb 3+ (X2). The received parameters are: ...
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37.
Effect of the environment on the state of optical glass polished sur-face
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(Science for glass production)
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The influence of the environment on the state of the polished surface of optical glasses is determined. The shelf life of polished optical parts before coating or bonding has been found to be shorter than ...
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38.
The effect of lithium oxide in boron-containing enamels on boron and aluminium coordination
-
(Coatings. Enamels.)
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The IR absorption spectra of boron-containing soil enamels with different contents of lithium oxide Li 2 О were studied and the coordination state of cations was analyzed taking into account the content ...
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39.
Thermal cracking of optical glass by strontium vapor laser
-
(Science for glass production)
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... glass is determined by the multiwave spectrum of the absorbed radiation. Sr laser radiation (? = 6.45 ?m) absorbed in the "upper" layer ~ 200 ?m thick forms a surface microcrack, as in the case ...
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40.
Yellow-light up-conversion luminescence in erbium-doped transparent glass-ceramics
-
(Glassceramics)
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A transparent glass-ceramic containing nanocrystals of lead fluoride ?-PbF 2 with Er 3+ ions (average diameter 8.5 nm) was synthesized by secondary heat treatment of the initial oxyfluoride glass of ...
