
BOCHECHKA Oleksandr Oleksandrovych
Head of Department, Corresponding Member of the National Academy of Sciences of Ukraine, Doctor of Technical Sciences, Professor
Tel:+38(044) 379-14-47
Fax:+38(044) 430-35-06
e-mail: bochechka@ism.kiev.ua
Основний напрям досліджень – дослідження процесів отримання НТМ за високих тисків.
https://orcid.org/0000-0002-5728-891X
https://www.scopus.com/authid/detail.uri?authorId=57204786419
About the Department
The Department was established in 1972 on the basis of the “Laboratory of Structural and Physical Research of Superhard Materials”. From 1986 to 2012, Department 14 was called the “Department of Physicochemical Fundamentals of Obtaining Superhard Materials”.
Scientific direction
Research of physicochemical processes in the solid phase and melts, study of the interaction of superhard substances with gases and liquid media during the formation of single-crystalline, polycrystalline, dispersed, film superhard materials and composites based on them in a wide range of temperatures and pressures. Study of the structure and properties of synthesized materials. Physical research of crystals using modern methods. Ensuring the operation of the general use center with unique analytical instruments at the NAS of Ukraine.
The tasks of the department:
- establishing the regularities of physicochemical interaction in systems used to obtain diamond single crystals of various levels of dispersion, diamond polycrystalline composite materials, polycrystalline materials based on cubic boron nitride, ceramic and film materials;
- developing processes for obtaining new diamond polycrystalline composite materials under high pressure conditions for effective use in the working elements of tools operating in particularly difficult conditions – when drilling hard rocks, cutting;
- developing new processes for forming the morphology and surface composition of dispersed superhard materials and components for obtaining polycrystalline composite materials based on them;
- establishing the regularities of wetting in systems used to obtain diamond and cubic boron nitride single crystals, polycrystalline and composite materials based on them, ceramic and film materials;
- establishing the regularities of the formation of the structure, phase composition, optical properties of single crystals of superhard compounds, polycrystalline and composite materials based on them;
- development of computer analytical methods for diagnosing the operational characteristics of powders of superhard materials and assessing their quality;
- research into the processes of obtaining new superhard materials structured by non-diamond carbon phases by the method of physicochemical synthesis at pressures below atmospheric.
Structure
Within the department, the Laboratory No. 14/2 of Nanostructural, Crystallographic Research and Spectral Analysis (with the Center for Collective Use of Scientific Instruments “Analytical Center for Research and Nanodiagnostics of Materials”).
Completed projects
2015–2017
No. DR 0114U0070047 “Creation and study of a complex of characteristics of powders of a wide range of grain sizes from composites based on diamond, cBN, B4C, structured by a carbon bond, intended to increase the efficiency of abrasive tools”. Order of the National Academy of Sciences of Ukraine.
2016–2017
No. DR 0116U008863 “Development and implementation of the technology of plasma-chemical deposition of protective and illuminating diamond-like carbon films for optical parts of military equipment”. Order of the National Academy of Sciences of Ukraine.
2016–2018
No. DR 0115U006578 “Study of the regularities of formation of nanostructured diamond polycrystals and composites based on aluminum nitride of various functional purposes and development of theoretical methods for predicting their electrical, thermophysical and elastic properties”. Order of the National Academy of Sciences of Ukraine.
2017–2019
№DR 0117U00392 “Regularities of encapsulation of metal nanoparticles and their mixtures into carbon structures and porous matrices and their consolidation under the action of high pressure and high temperature on the resulting materials”. Order of the National Academy of Sciences of Ukraine.
2018–2020
№DR 0118U003292 “Creation of heat-resistant oxides and chlorides modified abrasive grinding powders for abrasive purposes from synthetic diamond powders and grinding powders from compacts based on cBN micropowders structured by a carbon bond”. Order of the National Academy of Sciences of Ukraine.
2019–2021
No. DR 0119U100591 “Intensification of sintering at high pressures of diamond nanopowders by physicochemical modification of their surface”. Order of the National Academy of Sciences of Ukraine.
2020–2021
No. DR 0120U101294 “Obtaining polycrystals and composites of increased thermal stability and wear resistance under high pressure conditions from diamond powders synthesized in systems that do not contain iron group metals”. Order of the National Academy of Sciences of Ukraine.
2017–2021
No. DR 0117U006291 “Development of new technologies for creating an antibacterial surface on bone implants made of calcium phosphate ceramics”. Order of the National Academy of Sciences of Ukraine.
2020–2022
No. DR 0120U100104 “Adsorption immobilization of metal nanoparticles for surface functionalization of materials with different levels of porosity”. Order of the National Academy of Sciences of Ukraine.
2022
No. DR 0122U000881 “High-pressure sintered composites from diamond powders of various genesis and CVD diamond, metallized with carbide-forming metals, for working elements of tools of various functional purposes”. Order of the National Academy of Sciences of Ukraine.
Latest publications
Volodymyr I. Kushch, Roberta Springhetti, Sergii V. Shmegera. Effective permittivity of composite elastomer with account of electric conductivity of phases and imperfect interface //International Journal of Engineering Science, Volume 123, 2018, Pages 51-61, https://doi.org/10.1016/j.ijengsci.2017.11.016
Dolmatov, Valerii & Ozerin, Alexander & Kulakova, Inna & Bochechka, A. & Lapchuk, Natalia & Myllymäki, Vesa & Vehanen, Asko. New aspects in the theory and practice of detonation synthesis, properties and application of nanodiamonds //Russian Chemical Reviews. N 89 (12). 2020. P. 1428–1462. DOI: 10.1070/RCR4924
Grygorii A. Petasyuk, Oleksandr O. Bochechka. Generalized index of the shape-similarity of the diamond powders grains projection //Powder Technology, Volume 353, 2019, Pages 125-131, https://doi.org/10.1016/j.powtec.2019.04.086.
Tsapyuk, G.G., Diyuk, V.E., Mariychuk, R. et al. Effect of ultrasonic treatment on the thermal oxidation of detonation nanodiamonds. Appl Nanosci 10, 4991–5001 (2020). https://doi.org/10.1007/s13204-020-01277-2
A.V. Vasin, S. Muto, Y. Ishikawa, D.V. Kysil, S.V. Sevostianov, O.F. Isaieva, G. Yu. Rudko, R. Yatskiv, S. Starik, V.A. Tertykh, A.N. Nazarov, V.S. Lysenko. Evolution from UV emission of phenyl groups to visible emission of pyrolytic nanocarbons dispersed in fumed silica: Alternative insight into photoluminescence of carbon nanodots //Journal of Luminescence, Volume 219, 2020, 116926, https://doi.org/10.1016/j.jlumin.2019.116926
V.I. Kushch, S.V. Shmegera, V.V. Mykhas’kiv. Multiple spheroidal cavities with surface stress as a model of nanoporous solid //International Journal of Solids and Structures, Volumes 152–153, 2018, Pages 261-271, https://doi.org/10.1016/j.ijsolstr.2018.07.001.
A.V. Vasin, A.V. Rusavsky, D.V. Kysil, S. Prucnal, Yu.P. Piryatinsky, S.P. Starik, Iu. Nasieka, V.V. Strelchuk, V.S. Lysenko, A.N. Nazarov. The effect of deposition processing on structural and luminescent properties of a-SiOC:H thin films fabricated by RF-magnetron sputtering //Journal of Luminescence, Volume 191, Part B, 2017, Pages 102-106, https://doi.org/10.1016/j.jlumin.2016.10.029
O.F. Kolomys, V.V. Strelchuk, S.V. Rarata, R. Hayn, A. Savoyant, F. Giovannelli, F. Delorme, V. Tkach. Optical and structural properties of individual Co-doped ZnO microwires //Superlattices and Microstructures, Volume 118, 2018, Pages 7-15, https://doi.org/10.1016/j.spmi.2018.04.005
Shul’zhenko, A.A., Jaworska, L., Sokolov, A.N. et al. Novel Wear-Resistant Superhard Diamond Composite Polycrystalline Material. J. Superhard Mater. 40, 1–7 (2018). https://doi.org/10.3103/S106345761801001X
Gaidai, S.V., Gryn’ko, V.S., Zhludenko, M.G. et al. Activity of carbon-fiber-supported Fe–Co catalysts in the CO2 methanation reaction. J. Superhard Mater. 39, 122–128 (2017). https://doi.org/10.3103/S1063457617020071
Equipment of Department No. 14