Zobrazeno 1 - 10
of 146
pro vyhledávání: '"Vladimir Šepelák"'
Publikováno v:
Frontiers in Materials, Vol 11 (2024)
Externí odkaz:
https://doaj.org/article/6e93dd10d6d34cf9b57f794663bafe1b
Autor:
Markéta Zukalová, Klebson Lucenildo Da Silva, Olena Porodko, Monika Vinarčíková, Maksym Lisnichuk, Vladimir Šepelák, Vladimír Girman, Hristo Kolev, Martin Fabián
Publikováno v:
Zeitschrift für Physikalische Chemie. 236:713-726
For the first time, a spinel-type high entropy oxide (Zn0.25Cu0.25Mg0.25Co0.25)Al2O4 as well as its derivative lithiated high entropy oxyfluoride Li0.5(Zn0.25Cu0.25Mg0.25Co0.25)0.5Al2O3.5F0.5 and oxychloride Li0.5(Zn0.25Cu0.25Mg0.25Co0.25)0.5Al2O3.5C
Autor:
Jan Valíček, Martin Fabián, Vladimir Šepelák, Vladimír Girman, Erika Tóthová, V. Tkáč, Mamoru Senna, Róbert Tarasenko, Marta Harničárová, Mária Kaňuchová, Ralf Witte, M. Orendáč, O. Skurikhina
Publikováno v:
Ceramics international, 46 (10; Part A), 14894-14901
Lithium-iron methasilicate (LiFeSi$_{2}$O$_{6}$, LFS), a member of clinopyroxene family, is an attractive compound for its multiferroic properties and applicability in energy-related devices. Conventional preparative method requires heating at elevat
Autor:
Martin Fabián, Horst Hahn, Marta Harničárová, Klebson Lucenildo Da Silva, Jan Valíček, Vladimir Šepelák, Milena Kušnerová, Michal Lesňák
Publikováno v:
Journal of Nanoscience and Nanotechnology. 19:3654-3657
Nanostructured nickel ferrite (NiFe2O4) is prepared via high-energy ball milling of the bulk counterpart at ambient temperature. The structure of the as-prepared nanoferrite is characterized by Raman spectroscopy and 57Fe Mössbauer spectroscopy. Due
Autor:
Vincent G. Harris, Vladimir Šepelák
Publikováno v:
Journal of Magnetism and Magnetic Materials. 465:603-610
Among the many types of preparation techniques, the non-conventional mechanochemical processing has been recognized as an alternative route to nanomaterials. It is integral to the preparation of ceramic materials, including magnetoceramics, such as s
Autor:
R. T. Santiago, Klebson Lucenildo Da Silva, Horst Hahn, Martin Fabián, Klaus Becker, Ivair A. Santos, Luiz Fernando Cótica, Carla C.F. Machado, Vladimir Šepelák
Publikováno v:
Solid State Sciences. 82:106-110
Mullite-type Bi2(Ga1-xFex)4O9 solid solutions, with 0.1 ≤ x ≤ 0.9, have been synthesized by a combination of mechanical and thermal treatments of a Bi2O3/Ga2O3/α-Fe2O3 stoichiometric mixture. The microstructure of the as-prepared materials on th
Autor:
S. Kovaliova, Tatiana Yu. Kiseleva, T. F. Grigor’eva, Vladimir Šepelák, P. A. Vityaz, N. Z. Lyakhov, M. Khomich, V. I. Zhornik, S. V. Vosmerikov, E. T. Devyatkina
Publikováno v:
Journal of Materials Science. 53:13560-13572
Magnetic abrasive machining is one of the advanced finishing processes that produce a high level of surface quality of any type. The productivity of the finishing process and the quality of the treated surfaces are determined by magnetic and abrasive
Autor:
Vladimir Šepelák, B.P. Tolochko, S. A. Petrova, A. I. Ancharov, T. F. Grigor’eva, E. T. Devyatkina, T. A. Udalova, S. V. Vosmerikov, Nikolay Z. Lyakhov
Publikováno v:
Journal of Materials Science. 53:13584-13591
The mechanically triggered interactions in the Ti–C and Hf–C systems performed in a high-energy planetary ball mill are studied. The formation of carbides (TiC and HfC) in the course of mechanochemical synthesis at the different stages is followe
Autor:
Erika Tóthová, Michal Hegedüs, Vladimir Šepelák, Ralf Witte, Horst Hahn, Paul Heitjans, Mamoru Senna
Publikováno v:
Journal of Materials Science. 53:13530-13537
Two members of the pyroxene family, the germanate-type LiFeGe2O6 and the titanate-type LiFeTi2O6, are prepared for the first time via non-conventional one-step mechanosynthesis. The evolution of the as-prepared materials in the course of mechanosynth
Autor:
A. S. Ilyushin, Vladimir Šepelák, Tatiana Yu. Kiseleva, T. F. Grigoryeva, Eduard E. Levin, Alla A. Novakova
Publikováno v:
Journal of Materials Science. 53:13477-13490
Mechanochemical interaction of Fe powder with the liquid Ga–In eutectic in the Fe-rich concentration corner of the Fe–Ga–In phase diagram was studied and compared with binary Fe–Ga and Fe–In specimens. Slow formation of diluted solid soluti