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Information × Registration Number 0226U002857, (0124U000970) , R & D reports Title Low-energy ion-plasma synthesis of energy-sensitive materials for the needs of biomedicine, spintronics, optics popup.stage_title Дослідження і розробка методів керування внутрішніми напругами у енергочутливих покриттях на полімерних підкладках Head Dudin Stanislav V., Кандидат фізико-математичних наук Registration Date 09-03-2026 Organization V.N. Karazin Kharkiv National University popup.description1 The goal of the project is to study the physical laws, principles and means of low-energy ion-plasma synthesis of coatings from energy-sensitive materials for the needs of biomedicine, spintronics, and optics. It is planned to develop methods of ion-plasma control of the structure and properties of energy-sensitive coatings in the processes of reactive ion-plasma synthesis by controlling the flows of atomic, chemically active and charged particles from the plasma with the main focus on biotolerant coatings based on tantalum compounds on the surface of metal and plastic medical implants. It is planned to conduct a substantiation of the application of tantalum-based coatings in hospital surgery, orthopedics, stomatology, restorative and reconstructive surgery, including after injuries and combat wounds. The project also plans to develop self-healing coatings based on tantalum compounds that have increased wear resistance. A team of researchers from V.N. Karazin Kharkiv National University, Kharkiv National Medical University and V.T. Zaitsev Institute of General and Emergency Surgery has been created to implement the results of the work into medical practice. popup.description2 Within the reported stage, a set of experimental and theoretical studies was performed to develop technologies for synthesizing functional coatings based on tantalum, aluminum, and their compounds on polymer and metallic substrates. The main focus was on coatings for biomedical devices such as implants, stents, and surgical meshes. Deposition regimes for reactive magnetron sputtering of Ta, Ta₂O₅, and related multilayer coatings with plasma activation of reactive gases were developed. It was shown that reducing energetic bombardment of the growing film surface, particularly by increasing the working gas pressure, significantly decreases internal stresses and improves coating adhesion on polymer substrates. The structure, morphology, and mechanical and electrochemical properties of the synthesized films were investigated using advanced analytical methods. The coatings exhibit low surface roughness, good adhesion, and high corrosion resistance. In particular, Ta/Ta₂O₅ bilayer coatings provide a substantial increase in corrosion resistance of metallic substrates in simulated physiological media. A method for evaluating internal stresses in thin films deposited on flexible substrates was developed. The possibility of creating hard self-healing coatings based on tantalum capable of restoring protective properties after damage was demonstrated. Approaches for controlling charged particle fluxes in plasma systems by adjusting discharge parameters and magnetic field topology were also developed, providing a basis for optimizing deposition processes for energy-sensitive coatings. Product Description popup.authors Oleksandr Zykov Yakovin Stanislav D. Ivan I. Okseniuk Yaroslav O. Hrechko popup.nrat_date 2026-03-09 Close