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Information × Registration Number 0224U002516, (0123U101369) , R & D reports Title Development of technology for the production of hybrid ceramic-metal bearings of gas turbine engines for operation in extreme temperature and power modes of operation popup.stage_title Розробка технологічних режимів виготовлення керамічних та метал-керамічних компонентів гібридного підшипника Head Zghalat-Lozynskyi Ostap B., Доктор технічних наук Registration Date 17-02-2024 Organization Institute of Problems of Materials Science named after IM Frantsevich of the National Academy of Sciences of Ukraine popup.description1 Development of technology for manufacturing hybrid bearings of gas turbine engines operating in extreme conditions popup.description2  The technology for obtaining a heat-resistant composite based on the P6M5K5 alloy, dispersion-strengthened with solid inclusions of titanium carbide, has been developed. Technological transitions for obtaining a forging with minimal porosity are proposed. Peculiarities of solid-phase interaction of Si3N4–Nb powder mixtures of stoichiometric composition according to the reaction 4Nb + Si3N4 = 4NbN + 3Si during heat treatment in vacuum were studied. Synthesis regimes of NbN–Si3N4 composite powders are proposed, which are developed taking into account the established regularities of interaction of silicon nitride as a precursor with niobium. A study of the composite powders consolidation by the spark-plasma sintering method was carried out. The use of non-linear IPS regimes allowed to obtain homogeneous structures with a grain size of less than 500 nm and a high relative density of 0.97 at relatively low temperatures. An experimental batch of dense ball samples with a diameter of 15 mm was made from the synthesized powder of the optimal composition using the IPS method. They were prepared by grinding and polishing for testing tribotechnical characteristics and examinations of combined ceramic bearings. Product Description popup.authors Lytvyn Roman V. Bahliuk Hennadii A. Kolesnichenko Valerii H. Vlasova Oksana V. Tolochyna Oleksandra V. Mediukh Roman M. Honcharuk Dmytro A. Marych Myroslav V. Hrinkevych Kostyantyn E. Verbylo Dmytro H Khomenko Liubov L. Derevyanko Oleksandr V. Mamonova Alevtyna A. Krushynska Larysa A. Halyna O. Maksimova Kyryliuk Yevheniia S. Kyryliuk Stepan F. Yarmolinskyi Sergii V. Lazorenko Hanna S. Myslyvchenko Oleksandr M. Tolochyn Oleksandr I. Portnov Oleksandr P. Zelenova Alla O. Zyatkevych Nina S. Melnyk Viktor Kh. Naumenko Vladyslav Yu. Kupriianova Olena O. Zavorotnyi Mykhailo H. Pikozh Oleksii P. Kuts Lidiia P. Honcharenko Nadiia H. Kud Iryna V. Zhalat-lozynskyi Ostap B. popup.nrat_date 2024-02-17 Close