Zobrazeno 1 - 10
of 10
pro vyhledávání: '"M. Yu. Mychinko"'
Publikováno v:
Ceramics international
The total electric conductivity of two ceramics of cubic perovskites corresponding to x = 0.1 and x = 0.2 in the Sr1-xYxFeO3-delta solid solution has been measured by a 4-probe method in the temperature range from 298 K to 1373 K in air, allowing act
Publikováno v:
Inorganic Materials. 56:72-76
New phases with an ordered structure of the composition Y2Ba3Fe5– yCoyO13 + δ (1.7 ≤ y ≤ 2.1) were obtained via the glycerol-nitrate technique. The regions of existence of two types of structures were determined by transmission electron micros
Publikováno v:
Materials Research Bulletin. 113:1-5
The NdBaMnFeO6-δ layered perovskite was synthesized by a topotactic reaction in the N2/H2 atmosphere for the first time while controlling the sample mass during the experiment. The X-ray powder diffraction (XRPD) patterns of the samples with differe
Autor:
L. Ya. Gavrilova, M. Yu. Mychinko, A.E. Makarova, I.B. Golovachev, E.I. Zyaikin, Vladimir A. Cherepanov, N.E. Volkova, M.V. Bazueva
Publikováno v:
Journal of Alloys and Compounds. 784:1297-1302
A series of samples of overall composition Ba1-xLnxFe1-yCoyO3-δ (Ln = Pr, Sm, Gd) with x = 0.3–0.4; y = 0–0.5 were prepared by glycerin nitrate technique in air. The crystal structure of single-phase Ba1-xLnxFe1-yCoyO3-δ (Ln = Pr, Sm, Gd) deter
Publikováno v:
Materials Letters. 251:78-80
Single phase Y2Ba3Fe3.1Co1.9O13+δ was prepared at 1373 K in air. According to X-ray diffraction (XRD) it possesses the tetragonal structure (sp.gr. P4/mmm); the unit cell parameters are: a = 3.895(1)A; c = 19.372(1)A. Electron diffraction has shown
Autor:
Vladimir A. Cherepanov, N.E. Volkova, I.B. Golovachev, L. Ya. Gavrilova, M. Yu. Mychinko, B. Raveau, A. Maignan
Publikováno v:
Journal of Solid State Chemistry
Quintuple perovskites Sm2Ba3Fe5-xCoxO15-δ (x = 0.5, 1.0 and 1.5) have been prepared by glycerin-nitrate technique in air. The phase purity was confirmed by XRD. Partial substitution of Co for Fe decreases the oxygen content and thus the mean o
Autor:
O. I. Lebedev, Vincent Caignaert, A. V. Bryuzgina, T. V. Aksenova, E.A. Kiselev, M. Yu. Mychinko, Vladimir A. Cherepanov, A.S. Urusova, Natalia E. Mordvinova
Publikováno v:
Journal of Alloys and Compounds
Journal of Alloys and Compounds, Elsevier, 2017, 694, pp.375-382. ⟨10.1016/j.jallcom.2016.10.023⟩
Journal of Alloys and Compounds, 2017, 694, pp.375-382. ⟨10.1016/j.jallcom.2016.10.023⟩
Journal of Alloys and Compounds, Elsevier, 2017, 694, pp.375-382. ⟨10.1016/j.jallcom.2016.10.023⟩
Journal of Alloys and Compounds, 2017, 694, pp.375-382. ⟨10.1016/j.jallcom.2016.10.023⟩
International audience; The phase equilibria in the Y - Ba - Fe - O system were systematically studied at 1373 K in air. The intermediate phases formed in the Y - Ba - Fe - O system at 1373 K in air were Ba3YFe2O7.5+delta and BaFe1-xYxO3-delta. The c
Autor:
Oleg I. Lebedev, A. V. Bryuzgina, L. Ya. Gavrilova, M. Yu. Mychinko, K. M. Deryabina, Vladimir A. Cherepanov, A.S. Urusova, N.E. Volkova, B. Raveau
Publikováno v:
Russian Journal of General Chemistry / Zhurnal Obshchei Khimii
Russian Journal of General Chemistry / Zhurnal Obshchei Khimii, 2016, 86 (8), pp.1800-1804. ⟨10.1134/S1070363216080041⟩
Russian Journal of General Chemistry / Zhurnal Obshchei Khimii, MAIK Nauka/Interperiodica, 2016, 86 (8), pp.1800-1804. ⟨10.1134/S1070363216080041⟩
Russian Journal of General Chemistry / Zhurnal Obshchei Khimii, 2016, 86 (8), pp.1800-1804. ⟨10.1134/S1070363216080041⟩
Russian Journal of General Chemistry / Zhurnal Obshchei Khimii, MAIK Nauka/Interperiodica, 2016, 86 (8), pp.1800-1804. ⟨10.1134/S1070363216080041⟩
International audience; Formation of five-layered Ln 2–ε Ba 3+ε Fe 5 O 15–δ phases [exhibiting nanoscale ordering with layer-by-layer location of the cations in the Ln–Ba–(Ln,Ba)–(Ln,Ba)–Ba–Ln perovskite-type structure] has occurred
Autor:
V.L. Kozhevnikov, M. Yu. Mychinko, A.Yu. Suntsov, Evgueni V. Chulkov, M. O. Kalinkin, S.N. Marshenya, B.V. Politov, S.A. Petrova, Vladlen P. Zhukov
Publikováno v:
Journal of Alloys and Compounds. 824:153909
Novel complex oxides PrBaCoNbO6–δ (PBCN) and PrBaCoTaO6–δ (PBCT) are obtained via solid state reactions. X-ray and electron diffraction data for PBCN and PBCT demonstrate cubic space symmetry (S.G. Fm–3m) of the double perovskite crystalline
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