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  • 1
    Language: English
    In: Journal of Alloys and Compounds, 10/2015, Vol.645, S1, pp.S140-S143
    Description: To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1016/j.jallcom.2015.01.131 Byline: K.V. Korshunov (*), M.V. Tsarev [tsarev@dep19.vniief.ru], V.V. Mokrushin, A.M. Shapovalov, E.V. Zabavin Keywords Titanium hydride powder; Impedance spectroscopy of powder materials; Stepwise compression; Interparticle contacts; Shielding coatings at the particle surface Highlights * The method of impedance measurement of powder materials is developed. * Impedance spectroscopy was used to study titanium hydride powders oxidized by air oxygen at different modes. * Impedance spectroscopy seems suitable for studying of properties of shielding coatings at the particles. Abstract Results of studies of current-conducting properties of titanium hydride powders oxidized by air oxygen at different modes in order to form oxide and oxohydride coatings at the particles surface which enhance heat resistance of the hydride are presented. Method of impedance spectroscopy is used to determine contribution of resistance of the formed coatings and contribution of resistance of the grains of titanium hydride powders into the powder impedance. Method aspects of conducting measurements of the impedance of powder materials by stepwise sample compression are discussed. General approach to experimental data processing related to study of metal hydrides which contain shielding films of various chemical compositions at the particle surface is described. Author Affiliation: Russian Federal Nuclear Center -- All-Russian Research Institute of Experimental Physics (RFNC-VNIIEF), 37, Mira Ave., 607190 Sarov, Nizhny Novgorod region, Russia * Corresponding author.
    Keywords: Spectroscopy ; Powders (Particulate Matter);
    ISSN: 09258388
    E-ISSN: 18734669
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  • 2
    Language: English
    In: Journal of Alloys and Compounds, 10/2015, Vol.645, S1, pp.S132-S135
    Description: To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1016/j.jallcom.2015.01.153 Byline: N.V. Anfilov, A.A. Kuznetsov, P.G. Berezhko, A.I. Tarasova, I.A. Tsareva, V.V. Mokrushin, M.V. Tsarev [tsarev@dep19.vniief.ru] (*), I.L. Malkov Keywords Aluminum foam; Pore-forming agent; Pre-oxidized titanium hydride powder; External pressure; Porous structure Highlights * Pre-oxidized titanium hydride powder is a suitable blowing agent for aluminum foams. * The optimal mode of powder oxidation by air oxygen is warming up at ~440 [degrees][ETH] for 1 h. * The external pressure is the influential factor affecting the foaming process. Abstract One of the well-known ways of metal foam production consists of adding powder which releases gaseous decomposition product at high temperatures into a melted metal. When producing aluminum foams, titanium hydride powder is most frequently used, while its main disadvantage is its insufficient thermal stability. This results in a premature gas loss in the process of the powder introduction into a melted metal matrix. The paper discloses approaches to suppression of the undesirable premature titanium hydride decomposition by means of its preliminary thermal treatment, as well as the external pressure elevation over that of the system being processed during the foam formation. A method of using the thermally treated powder is proposed, in order to obtain aluminum foam samples having a required geometry and sufficiently uniform porous structure. Author Affiliation: The Russian Federal Nuclear Center -- All-Russian Research Institute of Experimental Physics (RFNC-VNIIEF), 37, Mira Ave., 607190 Sarov, Nizhny Novgorod Region, Russia * Corresponding author.
    Keywords: Powders (Particulate Matter);
    ISSN: 09258388
    E-ISSN: 18734669
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  • 3
    Language: English
    In: International Journal of Hydrogen Energy, 08/2017, Vol.42(35), pp.22628-22632
    Description: To access, purchase, authenticate, or subscribe to the full-text of this article, please visit this link: http://dx.doi.org/10.1016/j.ijhydene.2017.01.234 Byline: A.A. Kuznetsov [kuznetsov@dep19.vniief.ru], P.G. Berezhko, S.M. Kunavin, E.V. Zhilkin, M.V. Tsarev [tsarev@dep19.vniief.ru] (*), V.V. Yaroshenko, V.V. Mokrushin, O. Yu Yunchina, S.A. Mityashin Keywords Acoustic emission; Hydrogenation; Titanium sponge; Titanium powder; Cracking Highlights * The hydrogenation of titanium specimens is followed by acoustic emission signals. * The most intensive signals are generated due to specimens macro level cracking. * The ratio [H]/[Ti] corresponds to cracking depends on the specimen's specific surface. Abstract The changes occurring in metallic titanium specimens during hydrogenation, that are accompanying by high amplitude acoustic emission signals, have been studied. It was determined that the most probable reason for generation of these signals is crack formation in hydrogenated specimens as a result of internal stresses caused by structural changes in material. Also it was determined that typical sizes of the cracks are comparable with particle sizes of hydrogenated specimens, and the atomic ratio [H]/[Ti] in a solid phase, when crack formation is the most intensive, is generally lower for titanium sponge than for powder made from this sponge, which is explained by a larger specific surface of powder comparatively that of sponge. Author Affiliation: Federal State Unitary Enterprise "Russian Federal Nuclear Center -- All-Russian Research Institute of Experimental Physics" (FSUE "RFNC-VNIIEF"), 37, Mira Ave., 607188, Sarov, Nizhny Novgorod Region, Russia * Corresponding author. Article History: Received 4 October 2016; Revised 19 January 2017; Accepted 21 January 2017
    Keywords: Hydrogenation – Methods ; Titanium Sponge – Methods ; Acoustic Emission Testing – Methods ; Powders (Particulate Matter) – Methods;
    ISSN: 03603199
    E-ISSN: 18793487
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  • 4
    Language: English
    Description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures....
    Keywords: Crystal Structure ; Experimental 3d Coordinates ; Crystal System ; Space Group ; Cell Parameters ; Crystallography ; 1,1,3,3-Tetramethyl-2,2,4,4-Tetra-T-Butyl-1,3-Disila-2,4-Distannacyclobutane
    Source: DataCite
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  • 5
    Language: English
    Description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures....
    Keywords: Crystal Structure ; Experimental 3d Coordinates ; Crystal System ; Space Group ; Cell Parameters ; Crystallography ; 1,1,3,3,5,5-Hexamethyl-2,2,4,4,6,6-Hexaphenyl-1,3,5-Trisila-2,4,6-Tristannacyclohexane
    Source: DataCite
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  • 6
    Language: English
    Description: An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures....
    Keywords: Crystal Structure ; Experimental 3d Coordinates ; Crystal System ; Space Group ; Cell Parameters ; Crystallography ; 1,2-Bis(Chlorodimethylsilyl)-Tetra-T-Butyldistannane
    Source: DataCite
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  • 7
    Language: English
    In: Clinical Therapeutics, 08/2017, Vol.39(8), S, pp.e62-e63
    Description: Background The problem of nosocomial pneumonia (NP) development and multidrug-resistant pathogens increase dictates the need of studies to optimize antibiotic therapy and possible combined usage of inhaled antibiotics. According to microbiological results gram-negative organisms dominated:
    Keywords: Ostomy ; Hospitals ; Antibiotics ; Pneumonia ; Antibiotics ; Nosocomial Infection ; Clinical Aspects ; Pneumonia ; Drug Resistance ; Antibiotics ; Pneumonia ; American Thoracic Society;
    ISSN: 01492918
    E-ISSN: 1879114X
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  • 8
    Language: Russian
    In: Èpidemiologiâ i Infekcionnye Bolezni. Aktual’nye voprosy, 09/21/2018, Vol.3_2018, pp.28-34
    ISSN: Èpidemiologiâ i Infekcionnye Bolezni. Aktual’nye voprosy
    E-ISSN: 2226-6976
    Source: CrossRef
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  • 9
    In: Nanoindustry Russia, 2018, pp.500-504
    ISSN: 19938578
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  • 10
    Language: English
    In: E3S Web of Conferences, 2019, Vol.75, p.01014
    Description: The study presents the results of creating simulated satellite imagery of lengthy territories with complex configuration using data from satellites with optical-electronic scanners of ultrahigh spatial resolution. The article attempts to clarify the feasibility of one-orbit imagery of a given lengthy...
    Keywords: Optical Scanners ; Satellites ; Spatial Discrimination ; Angular Velocity ; Spatial Resolution ; Satellite Imagery ; Configurations ; Computer Simulation ; Automatic Control;
    ISSN: E3S Web of Conferences
    ISSN: 25550403
    E-ISSN: 2267-1242
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