Search Results - "N. B. Kolchugina"

Morphological Peculiarities of R–Fe–B (R = Nd, Pr) Alloys Formed upon Solidification by Strip-Casting by Kolchugina, N. B., Lukin, A. A., Kaminskaya, T. P., Burkhanov, G. S., Skotnicova, K., Kursa, M., Dormidontov, N. A., Prokof’ev, P. A., Zelezhnyi, M. V., Cegan, T., Ginzburg, B. A., Bakulina, A. S.

“…X-ray diffraction analysis, scanning electron microscopy, and atomic force microscopy are used to study the phase composition, texture, and peculiarities of…”
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Magnetocaloric Materials for Low-Temperature Magnetic Cooling by Koshkid’ko, Yu. S., Dilmieva, E. T., Kamantsev, A. P., Mashirov, A. V., Cwik, J., Kol’chugina, N. B., Koledov, V. V., Shavrov, V. G.

“…State of research in the study of magnetocaloric materials based on rare-earth metals that are promising for application in the technology of low-temperature…”
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Magnetocaloric properties of distilled gadolinium: Effects of structural inhomogeneity and hydrogen impurity by Burkhanov, G. S., Kolchugina, N. B., Tereshina, E. A., Tereshina, I. S., Politova, G. A., Chzhan, V. B., Badurski, D., Chistyakov, O. D., Paukov, M., Drulis, H., Havela, L.

“…High-purity Gd prepared by distillation is a structurally inhomogeneous system consisting of needle-shaped crystals of cross section 0.5–2.5 μm with…”
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Structure and Magnetic Properties of (Sm,Zr)(Co,Fe,Cu)z Alloy Powders for Bonded Magnets by Kolchugina, N. B., Dormidontov, N. A., Prokofev, P. A., Milov, Yu. V., Andreenko, A. S., Sipin, I. A., Dormidontov, A. G., Bakulina, A. S.

“…Hard magnetic (Sm,Zr)(Co,Fe,Cu) z alloys intended for application as powder fillers in bonded magnets are considered. The microstructure and intrinsic coercive…”
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Magnetic Force Microscopy of the Domain Structure of High-Coercivity (Nd–R)–Fe–B (R = Pr, Ce, Dy, Tb, Ho) Permanent Magnets by Dormidontov, N. A., Kolchugina, N. B., Kaminskaya, T. P., Prokofev, P. A., Bakulina, A. S., Rusinov, D. A., Andreenko, A. S.

“…In the present study, the domain structure of high-coercivity and high-performance Nd–Fe–B-based permanent magnets, which were prepared by the binary mixture…”
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Structure of Cast Nd–R–Fe–B (R = Pr, Ce, La) Alloys for Sintered Permanent Magnets by Kolchugina, N. B., Dormidontov, N. A., Prokofev, P. A., Bakulina, A. S., Zheleznyi, M. V., Rusinov, D. A., Umnov, P. P., Chueva, T. R.

“…X-ray diffraction and differential thermal analyses are used to study multicomponent Nd–R–Fe–B (R = Pr, Ce, La) alloys prepared by induction melting in an…”
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Structure of Alloys for (Sm,Zr)(Co,Cu,Fe)z Permanent Magnets: Phase Composition of As-Cast Alloys by Zheleznyi, M. V., Kolchugina, N. B., Dormidontov, N. A., Prokofev, P. A., Milov, Yu. V., Sipin, I. A., Andreenko, A. S., Dormidontov, A. G., Bakulina, A. S.

“…In present study, X-ray diffraction and local electron probe microanalysis are used to identify microstructural and phase features of as-cast (Sm,Zr)(Co,Cu,Fe)…”
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Structural Constituents and Phases in High-Coercivity (Sm,Zr)(Co,Cu,Fe)z Alloys for Permanent Magnets by Dormidontov, N. A., Kolchugina, N. B., Prokof’ev, P. A., Zheleznyi, M. V., Milov, Yu. V., Dormidontov, A. G., Bakulina, A. S.

“…(Sm,Zr)(Co,Cu,Fe) 6.0–6.8 alloys are prepared by vacuum induction melting and subsequently subjected to heat treatment in order to form a high-coercivity…”
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Peculiarities of the Formation of High-Coercivity Structure of (Sm, Zr)(Co, Cu,Fe)z Alloys in Varying the (4f-,4d-)-to-(3d-) Element Ratio by Dormidontov, N. A., Kolchugina, N. B., Milov, Yu. V., Dormidontov, A. G.

“…Processes of the formation of the high-coercivity state of the Sm 0.85 Zr 0.15 (C0 0.702 Cu 0.088 Fe 0.210 ) z alloys with different indices z = 6.0, 6.5, and…”
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Membrane Pd–7.70 wt % Lu Alloy for the Preparation and Purification of Hydrogen by Kol’chugina, N. B., Gorbunov, S. V., Roshan, N. R., Burkhanov, G. S., Kaminskaya, T. P., Dormidontov, N. A., Bakulina, A. S., Rusinov, D. A.

“…The purity of hydrogen, which is an alternative energy carrier in powder sources of distributed energy resource systems and, in particular, is the feed stock…”
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Pd–Lu Foil Membranes for Hydrogen Diffusion Purification by Kol’chugina, N. B., Gorbunov, S. V., Roshan, N. R., Kaminskaya, T. P., Dormidontov, N. A., Prokofev, P. A., Bakulina, A. S., Kas’yanov, V. S.

“…We show here that palladium-lutetium foil Pd–11.2 wt % Lu membrane can be efficiently used for hydrogen separation via its diffusion at temperatures 300–500°С…”
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Structure and Magnetic Properties of Nd–Fe–B Magnets Prepared from DyH2-Containing Powder Mixtures by Burkhanov, G. S., Kolchugina, N. B., Lukin, A. A., Koshkidko, Yu. S., Cwik, J., Skotnicova, K., Sitnov, V. V.

“…Sintered Nd–Pr–Dy–Fe–B permanent magnets were prepared by a powder blending technique using mixtures consisting of strip-casting alloy (wt %) 24.0 Nd, 6.5 Pr,…”
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On Correlation between Powder Dispersity and Hysteresis Characteristics with Regard to Magnets Based on (Sm, Zr)(Co, Cu, Fe)z Alloys by Dormidontov, N. A., Burkhanov, G. S., Kolchugina, N. B., Dormidontov, A. G., Milov, Yu. V.

“…Correlation between the morphology, magnetic properties of powdered (Sm, Zr)(Co, Cu, Fe) z alloy, and magnetic characteristics of magnets made of these powders…”
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Influence of heat treatment on the structural and magnetic characteristics of (NdxPr1-x)2Fe14B-based magnetic material for low-temperature application by K. Skotnicová, G. S. Burkhanov, Y. S. Koshkid’ko, D. Růžička, T. Čegan, J. Cwik, N. B. Kolchugina, A. A. Lukin, O. Životský, K. Hrabovská

“…Sintered Pr-Nd-Fe-B-based permanent magnets with 10 and 13 wt. % of Pr were prepared by traditional technology and then subjected to various heat treatments…”
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Magnetic Properties of the Sm(Co0.45Fe0.15Cu0.40)5 Alloy Prepared by Strip Casting by Lukin, A. A., Kolchugina, N. B., Koshkid’ko, Yu. S., Kamynin, A. V., Vasilenko, D. Yu

“…The magnetic properties and phase composition of the Sm(Co 0.45 Fe 0.15 Cu 0.40 ) 5 alloy prepared by the strip-casting technique (the casting of alloy on a…”
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Phase equilibria in the Lu-Pd system in the composition range 0–50 at % Lu by Kolchugina, N. B., Burkhanov, G. S., Drapala, J.

“…X-ray diffraction, differential thermal analysis, and electron microscopy are used to study the crystal structures and formation sequence of intermetallics in…”
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Effect of the purity of starting materials on the structure and properties of permanent magnets by Belyaev, I. V., Grigorovich, K. V., Kolchugina, N. B., Shibaev, S. S.

“…The need for using pure starting components in the production of Alnico and Nd-Fe-B system alloys for permanent magnets of high quality is substantiated. The…”
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Temperature-time melting conditions for a YuNDKT5BA magnetic alloy prepared from a rated charge of a given composition by Belyaev, I. V., Stukalov, V. F., Shibaev, S. S., Grigorovich, K. V., Kolchugina, N. B.

“…Fractional gas analysis is used to study the behavior of the oxide and nitride phases in Al-Ni-Co-based alloys (YuNDKT) prepared from a rated charge of a given…”
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Formation of the High-Coercive State in Rare-Earth Magnets by Lukin, A. A., Kolchugina, N. B.

“…The effect additives of TbAl 3 hydride have on the magnetic properties and structure of sintered permanent magnets based on Pr–Fe–Co–Cu–B alloy with increased…”
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Distillation purification of cerium-group rare-earth metals for fundamental research and design of new materials by Kol’chugina, N. B.

“…Distillation purification of praseodymium and neodymium is considered. The possibility of a marked increase in the purity of these metals is demonstrated. The…”
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