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  1. No Access

    Article

    Formation of Perovskite and Pyrochlore Phases during Mechanochemical Synthesis of Lead Ferroniobate

    We have studied the effect of mechanical activation in lead ferroniobate synthesis on the formation of perovskite and pyrochlore phases during both mechanochemical synthesis and subsequent firing. It has been ...

    A. A. Gusev, I. P. Raevski, V. P. Isupov in Inorganic Materials (2020)

  2. No Access

    Article

    Mössbauer Study of the Mechanical Activation Effect on the Magnetic Properties of PbFe0.5Ta0.5O3

    The Mössbauer spectra of PbFe0.5Ta0.5O3 samples prepared by mechanical activation of a mixture of PbO, Fe2O3, and Ta2O5 with subsequent annealing at different temperatures Ta have been investigated. The Mössbauer...

    S. P. Kubrin, I. P. Raevski, A. A. Gusev, V. P. Isupov… in Crystallography Reports (2020)

  3. No Access

    Article

    Mild Mechanochemical Synthesis of Nanodispersed Composites Magnetite@M(II)-Fe Layered Double Hydroxides (M = Mg, Ni)

    The possibility of synthesis of nanodispersed composites Fe3O4@M(II)-Fe layered double hydroxides (M = Mg, Ni) is shown by mechanical processing a mixture of solid salts M(II) (M = Mg, Ni), Fe(II) and Fe(III) wit...

    V. R. Khussnutdinov, V. P. Isupov in Russian Journal of Applied Chemistry (2020)

  4. No Access

    Article

    Mechanochemical Synthesis of Lithium Pentaaluminate from Lithium Carbonate and Boehmite

    It has been shown that mechanical activation of a boehmite + lithium carbonate mixture with an Al : Li atomic ratio of 5 : 1 in an AGO-2 planetary activator at a centrifugal acceleration of 40g and milling times ...

    N. V. Eremina, V. P. Isupov in Inorganic Materials (2020)

  5. No Access

    Article

    Effect of Mechanical Activation on Reaction between Boehmite and Lithium Carbonate

    We have studied the effect of mechanical activation of a boehmite + lithium carbonate mixture in an AGO-2 planetary activator on phase transformations during heat treatment in air. The results demonstrate that...

    V. P. Isupov, I. A. Borodulina, K. B. Gerasimov, N. V. Bulina in Inorganic Materials (2020)

  6. No Access

    Article

    Synthesis of Fine-Particle α-LiAlO2 via Heat Treatment of a Mechanically Activated Mixture of Gibbsite and Lithium Carbonate

    We have found conditions for the synthesis of fine-particle phase-pure α-LiAlO2 via heat treatment of a mechanically activated mixture of gibbsite and lithium carbonate in air. The results demonstrate that, to sy...

    V. P. Isupov, I. A. Borodulina, R. N. Niyazova, N. V. Eremina in Inorganic Materials (2019)

  7. No Access

    Chapter and Conference Paper

    The Effect of Mechanical Activation on the Structure and Dielectric Properties of PbYb1/2Nb1/2O3–PbFe1/2Nb1/2O3 Solid Solution Ceramics

    Recently we have found out that high-energy during mechanochemical synthesis stimulates disordering of Yb3+ and Nb5+ cations in the PbYb1/2Nb1/2O3 ( ceramics. However, one could expect a contamination of thus ...

    I. P. Raevski, A. A. Gusev, V. P. Isupov, M. A. Evstigneeva… in Advanced Materials (2019)

  8. No Access

    Article

    Effect of the Reaction Medium on the Mechanochemical Synthesis of LiAlO2

    An unactivated mixture of aluminum hydroxide (gibbsite) and lithium carbonate and a mixture mechanically activated in an AGO-2 planetary mill were heat-treated in air and under vacuum (0.05 Pa) at temperatures...

    V. P. Isupov, N. V. Bulina, I. A. Borodulina in Inorganic Materials (2018)

  9. No Access

    Chapter and Conference Paper

    Structural and Dielectric Studies of PbYb1/2Nb1/2O3 Ceramics with the Differing Degree of the Long-Range Compositional Ordering Fabricated by Mechanoactivation

    It was found out that compositional ordering degree S of Yb3+ and Nb5+ ions in PbYb1/2Nb1/2O3 ceramics and correspondingly both the temperature and diffusion of antiferroelectric phase transition can be varied wi...

    I. P. Raevski, Yu. A. Kuprina, I. N. Zakharchenko, A. A. Gusev… in Advanced Materials (2018)

  10. No Access

    Article

    Mechanically Stimulated Thermal Synthesis of Lithium Pentaaluminate from Lithium Carbonate and Aluminum Hydroxide

    It is shown that the phase composition of lithium aluminates formed when aluminum hydroxide in the form of gibbsite interacts with lithium carbonate in their mixture with Al: Li atomic ratio of 5: 1 depends on...

    V. P. Isupov, N. V. Eremina, I. A. Borodulina in Russian Journal of Applied Chemistry (2017)

  11. No Access

    Article

    Synthesis of arsenic sorbent by the reaction of magnesium hydroxide with aqueous iron(III) chloride solution

    The reaction of magnesium hydroxide with a concentrated aqueous solution of iron(III) chloride yields a mixture of magnesium–iron layered double hydroxide and iron oxide–hydroxide in the akaganeite form. The c...

    V. P. Isupov, A. I. Katunina, I. A. Borodulina… in Russian Journal of Applied Chemistry (2017)

  12. No Access

    Article

    Effect of water vapor pressure on the phase composition of lithium monoaluminates formed in the interaction of aluminum hydroxide and lithium carbonate

    It is shown that the partial water vapor pressure affects the phase composition of lithium monoaluminates formed when aluminum hydroxide (gibbsite) and lithium carbonate are heated in air, in the atmosphere of...

    V. P. Isupov, N. V. Bulina, I. A. Borodulina in Russian Journal of Applied Chemistry (2017)

  13. No Access

    Chapter and Conference Paper

    Mössbauer Study of the Effect of Mechanical Activation on the Magnetic Properties of PbFe0.5Nb0.5O3

    Mössbauer studies of PbFe0.5Nb0.5O3 samples prepared by of PbO, Fe2O3 and Nb2O5 mixture and subsequent sintering at various temperatures T S were performed. The room consist of two doublets (D1 and D2) fo...

    S. P. Kubrin, I. P. Raevski, V. V. Stashenko, A. A. Gusev… in Advanced Materials (2017)

  14. No Access

    Article

    Low-temperature stages in the mechanochemical synthesis of gamma-lithium monoaluminate

    Low-temperature (<500°C) stages in the synthesis of gamma-lithium monoaluminate through heat treatment of a mechanically activated mixture of aluminum hydroxide and lithium carbonate have been studied by therm...

    V. P. Isupov, K. B. Gerasimov, I. A. Borodulina, Ya. E. Trukhina in Inorganic Materials (2017)

  15. No Access

    Article

    Mechanochemical synthesis of fine-particle γ-LiAlO2

    Using thermogravimetry, in situ X-ray diffraction, room-temperature X-ray diffraction, specific surface area measurements, and particle size analysis, we have studied how preliminary mechanical activation of a...

    V. P. Isupov, Ya. E. Trukhina, N. V. Eremina, N. V. Bulina… in Inorganic Materials (2016)

  16. No Access

    Article

    Uranium in the mineralized lakes of Altai Krai

    Data on the physicochemical properties (pH, Eh, salinity) and content of U and other trace elements (As, Li, B, Br, I, Sr) are provided for the mineralized lakes of the Kulundinskaya steppe of Altai Krai. The ...

    V. P. Isupov, M. N. Kolpakova, S. V. Borzenko, S. S. Shatskaja… in Doklady Earth Sciences (2016)

  17. No Access

    Article

    Analysis of material composition and dissociation potential of minerals in mine waste to assess productivity of lithium concentrates

    Considering lack of lithium, the authors believe it is advisable to analyze dressability of spodumene concentrates from mine wastes, specifically from tailings of Transbaikal Mining-and-Processing Integrated W...

    T. S. Yusupov, V. P. Isupov, A. G. Vladimirov, V. E. Zagorsky… in Journal of Mining Science (2015)

  18. No Access

    Article

    Thermodynamic modeling of the behavior of Uranium and Arsenic in mineralized Shaazgai-Nuur Lake (Northwest Mongolia)

    Highly mineralized closed lakes on the territory of ore regions of Mongolia are of special interest in relation to the search for nonconventional sources of metals. Water of soda Shaazgai-Nuur Lake contains ~1...

    O. L. Gaskova, V. P. Isupov, A. G. Vladimirov, S. L. Shvartsev… in Doklady Earth Sciences (2015)

  19. No Access

    Article

    Prediction of structural–chemical change in minerals under mechanical impact during milling

    There is sufficient experimental database thus far collected on structural and chemical changes in minerals with different types of chemical bonding under activation milling. The research has shown the possibi...

    T. S. Yusupov, F. Kh. Urakaev, V. P. Isupov in Journal of Mining Science (2015)

  20. No Access

    Article

    Structural and particle size characteristics of lithium carbonate after mechanical activation and heat treatment

    This paper examines the structural and particle size characteristics of lithium carbonate after mechanical processing in an AGO-2 planetary activator, followed by heat treatment. Milling increases the specific...

    V. P. Isupov, N. V. Bulina, N. V. Eremina in Inorganic Materials (2015)

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