BOCHECHKA Oleksandr Oleksandrovych

Head of Department, Corresponding Member of the National Academy of Sciences of Ukraine, Doctor of Technical Sciences, Professor

Основний напрям досліджень – дослідження процесів отри­мання НТМ за високих тисків.

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

Equipment of Department No. 14

Technological proposals of Department No. 14

Employees of Department No. 14