naa a22 4500 510814808 CHVBK 20180411083501.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1134/S0031918X13070120 doi (NATIONALLICENCE)springer-10.1134/S0031918X13070120 Nanosize β-tantalum coatings: Formation, structure, and properties [Elektronische Daten] [Yu. Tuleushev, V. Volodin, E. Zhakanbaev] Using the methods of ion-plasma sputtering and the coprecipitation of ultradispersed Ta and Cu particles, Ta-Cu film coatings have been obtained in the whole range of concentrations. The structural analysis supports the existence of copper solid solutions in -tantalum in the range of 1.5-82.4 at % Cu. The dynamics of the variation of the β-tantalum lattice parameters with increasing copper concentration is described. A computer simulation model for constructing the unit cell of copper solution in -tantalum is proposed. The resistivity of the samples of Ta-Cu alloys at room and liquid-helium temperatures is measured. The alloy obtained is established to possess a chemical resistance to a full-strength nitric acid up to 66.6 at % Cu. The dependence of the electrochemical potential of Ta-Cu coatings on copper concentration is studied. It is shown that the presence of minima at 73.7 at % Cu fairly well corresponds to acid-resistance threshold and is related to the binding-energy changes and to Cu atoms arrangement in β-Ta lattice upon transition from the tantalum-based solid solutions to the copper-based solutions. Pleiades Publishing, Ltd., 2013 β-tantalum nationallicence copper nationallicence structure nationallicence superstructure nationallicence films nationallicence size effect nationallicence solid solution nationallicence Tuleushev Yu Institute of Nuclear Physics, ul. Ibragimova 1, 050032, Almaty, Kazakhstan aut Volodin V. Institute of Nuclear Physics, ul. Ibragimova 1, 050032, Almaty, Kazakhstan aut Zhakanbaev E. Institute of Nuclear Physics, ul. Ibragimova 1, 050032, Almaty, Kazakhstan aut The Physics of Metals and Metallography Springer US; http://www.springer-ny.com 114/7(2013-07-01), 573-579 0031-918X 114:7<573 2013 114 11508 https://doi.org/10.1134/S0031918X13070120 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0031918X13070120 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tuleushev Yu Institute of Nuclear Physics, ul. Ibragimova 1, 050032, Almaty, Kazakhstan aut NATIONALLICENCE 700 1- Volodin V. Institute of Nuclear Physics, ul. Ibragimova 1, 050032, Almaty, Kazakhstan aut NATIONALLICENCE 700 1- Zhakanbaev E. Institute of Nuclear Physics, ul. Ibragimova 1, 050032, Almaty, Kazakhstan aut NATIONALLICENCE 773 0- The Physics of Metals and Metallography Springer US; http://www.springer-ny.com 114/7(2013-07-01), 573-579 0031-918X 114:7<573 2013 114 11508 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer