36.01. Laboratory of Electrotechnical Composite Materials

Main courses of discovery

• Development of physical and chemical bases of composite materials for electrical purposes.

Themes of scientific research

Development of physical and chemical principles of powder composite materials creation for electrical purposes to work in extreme conditions:

• Arcing in a vacuum, air, sulfur hexafluoride and other media for switching currents in electric networks of high power;
• High-speed sliding contact in low voltage power networks;
• Resistance welding structural materials and alloys.

Investigation of structure formation of properties of vapor-phase composite materials;

Applied research on contact details and electrodes manufacturing technology optimization for various purposes, using powder metallurgy technology and electron beam evaporation and condensation.

Best results

• Technology for electrical arcing contacts obteining from Cr-Cu composites materials, used on heavy loaded vacuum-type switching devices (TU and TI, SE "Генератор", Кyiv);
• Technology for Ag-Ni composites contact-details obtaining used on electrical apparatus, from recycled of industrial wastes silver (STA "Львівська залізниця", TU and TI "Аргентум", Lvov).
• Technology of complex-composite powders producing on the basis of a Co-Cu-Al-Y-Si with predetermined fraction composition (40-100 microns), based on a consistent mechanical crushing of ingots, for the plasma coating turbine blades manufacture (patents).
• New powder compositions based on tin bronze with addition of CaF2 for high-speed low-voltage electrical sliding contacts with the thermal strain measurement is the blades aviaturbin (SMB "Прогрес", ТR, АО "Моторсіч", Zaporizhzhia).
• New powder materials on Ag based with substantial mass fraction of carbon (60%) for the relay contacts and rail transport in the devices of automatic blocking (TU and TI).

Staff

Khomenko O.
s.r.sc., c.e.

Grechanyuk N.
D.E.

Publications

2024 2023 2022 2021 2020 2019 2018 2017 >> 1997 All Search

• COMPOSITE CERAMICS FOR THERMAL-BARRIER COATINGS PRODUCED FROM ZrO₂ COMPLEXLY DOPED WITH OXIDES OF RARE EARTH ELEMENTS 
  O.Dudnik, S.Lakyza, N.Grechanyuk, V.Redko, I.Marek, A.Makudera, V.B. Shmibelsky, O.Ruban (2022) Powder Metallurgy, #07/08, Kiev: Frantsevich Institute for Problems of Materials Science NASU, P.67-79
• ELECTRON-BEAM AND PLASMA OXIDATION-RESISTANT AND THERMAL-BARRIER COATINGS DEPOSITED ON TURBINE BLADES USING CAST AND POWDER Ni(Co)CrAlY(Sі) ALLOYS PRODUCED BY ELECTRON BEAM MELTING
  IV. CHEMICAL AND PHASE COMPOSITION AND STRUCTURE OF CoCrAlYSi POWDER ALLOYS AND THEIR USE
  I.Grechanyuk, N.Grechanyuk, G.Bagliuk, V.G. Grechaniuk, O.Khomenko, O.Dudnik, V.I. Gots (2022) Powder Metallurgy, #07/08, Kiev: Frantsevich Institute for Problems of Materials Science NASU, P.89-96
• ELECTRON-BEAM AND PLASMA OXIDATION-RESISTANT AND THERMAL-BARRIER COATINGS DEPOSITED ON TURBINE BLADES USING CAST AND POWDER Ni(Co)CrAlY(Sі) ALLOYS PRODUCED BY ELECTRON BEAM MELTING
  III. FORMATION, STRUCTURE, AND CHEMICAL AND PHASE COMPOSITION OF THERMAL-BARRIER Ni(Co)CrAlY/ZrO₂–Y₂O₃ COATINGS PRODUCED BY PHYSICAL VAPOR DEPOSITION IN ONE PROCESS CYCLE 
  N.Grechanyuk, I.Grechanyuk, Y.N. Yevterev, V.G. Grechanyuk, T.О. Prikhna, G.Bagliuk, V.I. Hots, O.Khomenko, O.Dudnik, O.V. Matsenko (2022) Powder Metallurgy, #05/06, Kiev: Frantsevich Institute for Problems of Materials Science NASU, P.88-98
• ELECTRON-BEAM AND PLASMA OXIDATION-RESISTANT AND THERMAL-BARRIER COATINGS DEPOSITED ON TURBINE BLADES USING CAST AND POWDER Ni(Co)CrAlY(Sі) ALLOYS PRODUCED BY ELECTRON BEAM MELTING
  ІІ. STRUCTURE AND CHEMICAL AND PHASE COMPOSITION OF CAST CoCrAlY ALLOYS
  T.О. Prikhna, I.Grechanyuk, M.Karpets, N.Grechanyuk, G.Bagliuk, V.G Grechanyuk (2022) Powder Metallurgy, #03/04, Kiev: Frantsevich Institute for Problems of Materials Science NASU, P.121-130
• Electron-beam and plasma oxidation-resistant and thermal-barrier coatings deposited on turbine blades using cast and powder Ni (Co)CrAlY(Si) alloys I. Fundamentals of production technology, structure, and phase composition of cast nicraly alloys
  T.О. Prikhna, I.Grechanyuk, M.Karpets, N.Grechanyuk, G.Bagliuk, V.G Grechanyuk, V.O. Chornovol (2022) Powder Metallurgy, #01/02, Kiev: Frantsevich Institute for Problems of Materials Science NASU, P.87-94