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Zhurnal Tekhnicheskoi Fiziki, 2025, Volume 95, Issue 4, Pages 763–770
DOI: https://doi.org/10.61011/JTF.2025.04.60011.235-24 (Mi jtf7548) 		 
Physical science of materials

Effect of accelerated high-energy electrons with low absorbed doses on the structure of polyimide press material

V. I. Pavlenkoa, N. I. Cherkashinaa, A. V. Noskovb, O. D. Edamenkoa, Z. V. Pavlenkoa, S. V. Serebryakova

a Belgorod Shukhov State Technological University, Belgorod, Russia
b Moscow Technical University of Communications and Informatics, Moscow, Russia
Full-text PDF (361 kB)
DOI: https://doi.org/10.61011/JTF.2025.04.60011.235-24
Abstract: The influence of high energy accelerated electrons ($E$ = 5 MeV) and low absorbed doses ($D$ = 5–50 keV) on structural and X-ray dislocation parameters of amorphous-crystalline polyimide press-material PI-PR-20 has been investigated by XRD method. Destruction of polyimide macromolecules at absorbed doses of 5–25 kGy is accompanied by destruction and additional amorphization of macromolecules (domains). At $D$ = 50 kGy, polymerization and crystallization of macromolecules occur with the formation of crystallites with denser packing, increased size of the coherent scattering area and minimal microdistortion of the crystalline lattice of crystallites.
Keywords: polyimide, X-ray phase analysis, X-ray structural analysis, amorphous halo, polymer domains and crystallites, coherent scattering region (CSR), dislocation parameters, microdistortions.
Funding agency Grant number
Ministry of Science and Higher Education of the Russian Federation FZWN-2023-0004
Received: 15.07.2024
Revised: 14.11.2024
Accepted: 18.11.2024
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: V. I. Pavlenko, N. I. Cherkashina, A. V. Noskov, O. D. Edamenko, Z. V. Pavlenko, S. V. Serebryakov, “Effect of accelerated high-energy electrons with low absorbed doses on the structure of polyimide press material”, Zhurnal Tekhnicheskoi Fiziki, 95:4 (2025), 763–770
Citation in format AMSBIB
\Bibitem{PavCheNos25}
\by V.~I.~Pavlenko, N.~I.~Cherkashina, A.~V.~Noskov, O.~D.~Edamenko, Z.~V.~Pavlenko, S.~V.~Serebryakov
\paper Effect of accelerated high-energy electrons with low absorbed doses on the structure of polyimide press material
\jour Zhurnal Tekhnicheskoi Fiziki
\yr 2025
\vol 95
\issue 4
\pages 763--770
\mathnet{http://mi.mathnet.ru/jtf7548}
\elib{https://elibrary.ru/item.asp?id=80590376}
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