Zobrazeno 1 - 10 of 82 pro vyhledávání: '"A. V. Bolbut"'
1
Microstructure and mechanical properties of B4C-NbB2-SiC ternary eutectic composites by a crucible-free zone melting method
Autor: M. Upatov, I. Bogomol, Y. Koval, Jozef Vleugels, V. Bolbut
Publikováno v: Journal of the European Ceramic Society. 41:1189-1196
Directionally solidified B4C–NbB2-SiC ternary composites were prepared by a floating zone method based on crucible-free zone melting of compacted powders. The ternary eutectic composition of B4C–15NbB2–35SiC (mol.%) was characterized by a boron
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c9357492982685d0b365ccbcea3d6612
https://doi.org/10.1016/j.jeurceramsoc.2020.09.049
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3
Hierarchical composites of B4C–TiB2 eutectic particles reinforced with Ti
Autor: Andrei Kuncser, I. Bogomol, Ievgen Solodkyi, Petro Loboda, Petre Badica, V. Bolbut, Oleg Vasylkiv
Publikováno v: Ceramics International. 46:28132-28144
Eutectic particles of B4C–TiB2 were reinforced with Ti by spark plasma sintering (SPS) or infiltration. The SPSed samples with 20, 30 and 40 wt. % Ti consisted of ceramic phases, and had a bicontinuous macrostructure formed by the Ti-rich region an
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::340504dfa54ac3733693edda2b2de055
https://doi.org/10.1016/j.ceramint.2020.07.312
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4
Structure and Properties of the Directionally Crystallized B4C–NbB2–SiC Alloy
Autor: Yu. I. Bogomol, V. V. Bolbut, M. I. Upatov, E. R. Abdullaeva
Publikováno v: Journal of Superhard Materials. 42:18-24
The 32B4C–30NbB2–38SiC composite (mol %) has been prepared by the floating zone melting method. The structure of the obtained composite consists of a coarse-grained binary eutectic (NbB2–SiC), a fine-grained ternary eutectic (B4C–NbB2–SiC),
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::078cb15777cf89c0d9894027f458cb97
https://doi.org/10.3103/s1063457620010074
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5
Addition of carbon fibers into B4C infiltrated with molten silicon
Autor: Ievgen Solodkyi, Petro Loboda, O. Bezdorozhev, Petre Badica, I. Bogomol, M. Vterkovskiy, V. Bolbut, Manja Krüger
Publikováno v: Ceramics International. 45:168-174
Boron carbide added with 0–20 wt% carbon fibers was subject to Si infiltration. Samples mainly consist of B13C2, β-SiC and unreacted Si. Some amount of SiB6 and α-SiC was also detected, while formation of B12(B,C,Si)3 phase was suppressed due to
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d61857263cd7dbe42a78c2ab582258c
https://doi.org/10.1016/j.ceramint.2018.09.148
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6
A zone melting device for the in situ observation of directional solidification using high-energy synchrotron x rays
Autor: Peter Staron, Camelia Gombola, Georg Hasemann, Malte Blankenburg, Anke Schmitt, Stephan Laube, Alexander Kauffmann, Michael Oehring, Martin Heilmaier, Florian Pyczak, Manja Krüger, V. Bolbut, N. Schell, Ioannis Sprenger, F. Gang
Publikováno v: Review of scientific instruments 91(093901), 1-9 (2020). doi:10.1063/5.0019020
Review of scientific instruments 91(093901), 1-9 (2020). doi:10.1063/5.0019020
Directional solidification (DS) is an established manufacturing process to produce high-performance components from metallic materialswith optimized properties. Mater
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::691d9262a26f33b5a14a9307c8ef9b1b
https://bib-pubdb1.desy.de/record/442752
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8
Microstructure and mechanical properties of a directionally solidified Mo-12Hf-24B alloy
Autor: I. Bogomol, V. Bolbut, Petro Loboda, Manja Krüger
Publikováno v: Journal of Alloys and Compounds. 735:2324-2330
In the present paper we report on a new Mo-12Hf-24B (in at. %) alloy which was processed by crucible-free zone melting (ZM) from cold pressed elemental powders. The alloy was solidified using crystallization rates of 90 mm/h, 100 mm/h and 110 mm/h. S
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::723072349bf3db533681f1a9a8540773
https://doi.org/10.1016/j.jallcom.2017.11.352
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10
Azolo[1,4]diazepines: the methods of synthesis and structural modification
Autor: M. V. Vovk, Yu. V. Dmytriv, S. V. Kemskii, A. V. Bolbut
Publikováno v: Journal of Organic and Pharmaceutical Chemistry. 15:3-27
The literature relating to the methods of synthesis and chemical transformations of azolo[1,4]diazepines (pyrazolo-, imidazo-, triazolo-, isoxazolo-, oxazolo-, isothiazolo- and thiazolodiazepines) currently known have been generalized and systematize
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::de24e808d8bdff0166dfc874985824de
https://doi.org/10.24959/ophcj.17.911
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