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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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