Registration Number
0224U033426,
(0121U112687)
, R & D reports
Title
Fulfillment of tasks of the perspective plan of development of a scientific direction "Mathematical sciences and natural sciences" Sumy State University
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Виконання завдань перспективного плану розвитку наукового напряму "Математичні науки та природничі науки" Сумського державного університету
Head
Opanasyuk Anatoliy , Доктор фізико-математичних наук
Perekrestov Vyacheslav I, Доктор технічних наук
Pohrebniak Oleksandr D., д.ф.-м.н.
Protsenko Ivan Yu., Доктор фізико-математичних наук
Khomenko Oleksiy Vitaliyovych, Доктор фізико-математичних наук
Registration Date
27-12-2024
Organization
Sumy State University
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Establishing the laws of the relationship between the structural state, mechanical properties and modes of ion-plasma treatment of nanocomposite carbonitride coatings and the development of technological bases and equipment for ion-plasma nitriding of materials.
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Within the project "Technological Foundations for Applying Composite Coatings on Internal Cylindrical Surfaces," a multi-section ion sprayer was developed, enabling the deposition of multi-component composites with gradient changes in elemental composition. The dependence of structural-morphological characteristics of Mo-Ti-Ta-Zr-W-Ni condensates on nickel concentration and coating formation parameters was studied. High-entropy amorphous coatings obtained at a Ni concentration of ~8–15 at.% exhibited microhardness of ~10 GPa. These coatings are characterized by stability under high-temperature annealing and improved wear resistance.
Under the project "Innovative Technologies for Rapid Pollutant Detection," nanoparticles of NiO, ZnO, MgO, Zn2SnO4, and CuxO compounds were synthesized and used to create environmentally safe nanoinks for printing thin film structures. Low-temperature methods for film deposition using these nanoinks were developed, ensuring high material quality and precise control of their properties. The structural, optical, electrical, and photoelectric characteristics of the films were studied. Based on these materials, single-layer and multilayer structures with heterojunctions were fabricated and tested as gas sensors.
Experimental studies demonstrated that these structures exhibit high sensitivity to toxic gases such as NO2, NH3, and CO. This makes them promising for environmental monitoring systems, particularly for detecting pollution caused by military activities. The developed technologies are environmentally friendly, energy-efficient, and do not require expensive equipment or toxic solvents, making them accessible for implementation in both industrial and research settings. These innovations open the way for creating next-generation portable sensors and devices for pollution control and public safety
Product Description
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Yevdokymenko Vladyslav Yu.
Yermakov Maksym S.
Ivashchenko Maksym M.
Boiko Bohdan R.
Vasyliev Vitalii R.
Dobrozhan Oleksandr A.
Doshyn Borys V.
Kornyushchenko Anna S.
Kosminska Yulia O.
Kubakh Maksym O.
Lufar Serhii І.
Opanasiuk Anatolii S.
Pavlov Andrii O.
Perekrestov Viacheslav I.
Pshenychnyi Roman M.
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2024-12-27
