Zobrazeno 1 - 10
of 195
pro vyhledávání: '"Nikolay A. Belov"'
Autor:
Olga A. Adzhieva, Maria L. Gringolts, Yulia I. Denisova, Georgiy A. Shandryuk, Ekaterina A. Litmanovich, Roman Yu. Nikiforov, Nikolay A. Belov, Yaroslav V. Kudryavtsev
Publikováno v:
Polymers, Vol 15, Iss 9, p 2157 (2023)
Fluorinated polymers are attractive due to their special thermal, surface, gas separation, and other properties. In this study, new diblock, multiblock, and random copolymers of cyclooctene with two fluorinated norbornenes, 5-perfluorobutyl-2-norborn
Externí odkaz:
https://doaj.org/article/7ea553f904d548059473232754024cac
Autor:
Torgom K. Akopyan, Nikolay A. Belov, Nikolay V. Letyagin, Stanislav O. Cherkasov, Xuan D. Nguen
Publikováno v:
Metals, Vol 13, Iss 4, p 802 (2023)
The structure of the new ternary eutectic Al-Ca-Cu system considered as a replacement for the ternary eutectic system Al-Ce-Cu widely used for additive manufacturing has been studied using experimental techniques. The liquidus projection of the Al-Ca
Externí odkaz:
https://doaj.org/article/93c0a88ffc0749cfa6a70b1cfeb07773
Autor:
Nikolay A. Belov, Aleksandr Y. Alentiev, Dmitrii S. Pashkevich, Fedor A. Voroshilov, Edgar S. Dvilis, Igor P. Asanov, Roman Y. Nikiforov, Sergey V. Chirkov, Daria A. Syrtsova, Julia V. Kostina, Yulia G. Bogdanova
Publikováno v:
Materials, Vol 16, Iss 3, p 913 (2023)
Poly(vinyl trimethylsilane) (PVTMS) films were subjected to direct surface fluorination in liquid medium (perfluorodecalin). The samples were investigated using several techniques: SEM-XEDS, XPS, ATR-IR, and contact angle measurement. The methods use
Externí odkaz:
https://doaj.org/article/077663426a764cd48aaaf68966f94db1
Autor:
Yury V. Gamin, Nikolay A. Belov, Torgom K. Akopyan, Victor N. Timofeev, Stanislav O. Cherkasov, Mikhail M. Motkov
Publikováno v:
Materials, Vol 16, Iss 2, p 677 (2023)
Aluminum alloys are one of the most common structural materials. To improve the mechanical properties, an alloy of the Al–Zn–Mg–Ca–Fe system was proposed. In this alloy, when Fe and Ca are added, compact particles of the Al10CaFe2 compound ar
Externí odkaz:
https://doaj.org/article/0e607af8227e4370b5236b496c59bc3e
Autor:
Nikolay A. Belov, Aleksandr Yu. Alentiev, Dmitrii S. Pashkevich, Fedor A. Voroshilov, Edgar S. Dvilis, Roman Yu. Nikiforov, Sergey V. Chirkov, Daria A. Syrtsova, Julia V. Kostina, Igor I. Ponomarev, Igor P. Asanov, Yulia G. Bogdanova
Publikováno v:
Polymers, Vol 14, Iss 23, p 5152 (2022)
A direct fluorination technique was applied for the surface treatment of PIM-1 films in a liquid phase (perfluorodecalin). The fluorinated samples were analyzed by various instrumental techniques. ATR-IR spectroscopy showed that the fluorination pred
Externí odkaz:
https://doaj.org/article/96ab6e027f6448d18cbea255593191b2
Autor:
Alexey V. Roenko, Roman Y. Nikiforov, Maria L. Gringolts, Nikolay A. Belov, Yulia I. Denisova, Georgiy A. Shandryuk, Galina N. Bondarenko, Yaroslav V. Kudryavtsev, Eugene S. Finkelshtein
Publikováno v:
Polymers, Vol 14, Iss 3, p 444 (2022)
Commercial metathesis polynorbornene is used for the fabrication of high-damping coatings and bulk materials that dissipate vibration and impact energies. Functionalization of this non-polar polymer can improve its adhesive, gas barrier, and other pr
Externí odkaz:
https://doaj.org/article/4795a5235f29463d8a99260bf457e0e5
Autor:
Alexander Yu Alentiev, Ivan S. Levin, Nikolay A. Belov, Roman Yu Nikiforov, Sergey V. Chirkov, Denis A. Bezgin, Victoria E. Ryzhikh, Julia V. Kostina, Victor P. Shantarovich, Leonid Yu Grunin
Publikováno v:
Polymers, Vol 14, Iss 1, p 120 (2021)
Poly-2,6-dimethylphenylene oxide (PPO) film samples with varying degrees of crystallinity (from 0 to 69%) were obtained by means of different techniques. The films were studied by various physicochemical methods (Fourier-transform infrared spectrosco
Externí odkaz:
https://doaj.org/article/4a34f362bbc04d1e91c566f1301a0c5a
Publikováno v:
Membranes, Vol 11, Iss 9, p 713 (2021)
Fluorine-containing polymers occupy a peculiar niche among conventional polymers due to the unique combination of physicochemical properties. Direct surface fluorination of the polymeric materials is one of the approaches for the introduction of fluo
Externí odkaz:
https://doaj.org/article/fca6122044854e3085507400e4c9a9d4
Autor:
Nikolay A. Belov, Alexander Y. Alentiev, Yulia G. Bogdanova, Artem Y. Vdovichenko, Dmitrii S. Pashkevich
Publikováno v:
Polymers, Vol 12, Iss 12, p 2836 (2020)
Direct fluorination of polymers is a widely utilized technique for chemical modification. Such introduction of fluorine into the chemical structure of polymeric materials leads to laminates with highly fluorinated surface layer. The physicochemical p
Externí odkaz:
https://doaj.org/article/d86caccbe2ad4c2480d166d016a69dbb
Autor:
Nikolay A. Belov, Zoltán Harman
Publikováno v:
Physics Letters B, Vol 741, Iss , Pp 61-65 (2015)
In the annihilation of a positron with a bound atomic electron, the virtual γ photon created may excite the atomic nucleus. We put forward this effect as a spectroscopic tool for an energy-selective excitation of nuclear transitions. This scheme can
Externí odkaz:
https://doaj.org/article/111ab360bdf74e1cbd31d9876d76e107