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Registration Number

0226U000872, (0124U000481) , R & D reports

Title

Formation and transformation of periodic nanocarbon-containing structures on metal surfaces with short-pulse laser, microwave, and plasma methods

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Формування і дослідження ЛІППС та МЛІППС на поверхні алюмінієвих сплавів.

Head

Dobrotvorskyi Serhii S., Доктор технічних наук

Registration Date

17-01-2026

Organization

National Technical University "Kharkiv Polytechnic Institute"

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The project aims to obtain new fundamental knowledge about the adsorption, mechanical, tribological, and light-repelling properties of metals on the surface of which periodic nanostructures are synthesized by their modification with short-pulse femtosecond and nanosecond laser radiation with implantation of carbon nanoparticles and subsequent stabilization with plasma coatings and microwave processing.

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Within the reported project stage, a comprehensive set of experimental and theoretical studies was carried out aimed at the formation and control of laser-induced periodic surface structures (LIPSS) on metals and alloys using femtosecond and nanosecond lasers. Attention was paid to surface pre-treatment, including optimization of mechanical processing regimes, which enabled surface roughness reduction and consideration of the technological heredity effect. A physical model for the formation of micro- and nanostructures was proposed and substantiated, considering the influence of the ionized ablation cloud on laser radiation propagation. Numerical simulations of energy absorption processes showed good agreement with experimental results. The fabricated surfaces exhibited tunable tribological, optical, and wetting properties, including reduced friction coefficients, enhanced light reflectance, and controlled hydrophobicity. A separate research direction focused on laser modification of coatings based on nanocarbon materials, particularly addressing the challenge of graphite layer adhesion to metallic substrates, which is critical for energy-storage components. The potential of femtosecond laser infusion was demonstrated as an alternative to conventional thermal and chemical methods. The results obtained were validated using optical, electron, and profilometric microscopy in accordance with international standards. The performed studies contribute to new fundamental insights into laser surface structuring processes and establish a basis for the practical implementation of the developed solutions in mechanical engineering, energy technologies, defense applications, and instrumentation. The project is conducted in collaboration with Ukrainian and international academic and industrial partners, enabling expanded opportunities for technology transfer and knowledge exchange.

Product Description

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Viktor V. Popov
Andriy P. Kozhushko
Dmytro V. Bondar
Borys O. Aleksenko
Roman M. Strelchuk
Yevheniia V. Basova
Serhii M. Kononenko
Yaroslav M. Hnilitskyi
Dmytro V. Trubin
Hennadii L. Khavin
Viktor V. Basov
Serhii S. Nesterenko
Emiliia V. Saprykina

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2026-01-17