On the prospects of application of nanostructured heterophase polyfunctional composite materials inengine building industry

Abstract

The paper gives a brief review of properties and applications of developed extra-hard nanostructured composite materials and coatings based on them. The presentresearch suggestsaerospace applications of nanostructured composite materials based on carbides, carbonitrides and diboridesof transition and refractory metals. To improve the technical and economic performance of gas turbine engines, it is advisable to use new composite structural materials whose basic physicomechanical properties are several times superior to traditional ones. The greatest progress in developing new composites should be expected in the area of materials created on the basis of polymer, metal, intermetallic and ceramic matrices. Currently components and assemblies of gas turbine engines and multiple lighting power units with long operation life and durability will vigorously develop. Next-generation composites are studied in all developed countries, primarily in the United States and Japan.

Development of a Heavy-Loaded Hydrodynamic Slide Bearing for a Reducer for a Turbojet Dual Engine

“…Limit deviations of the sizes, shape and location of the surfaces of sliding bearings with anti-friction coatings are assigned, based on the results of hydrodynamic calculations and accumulated experience in the design, manufacture and testing of sliding bearings. [7][8][9] The parameters of the bearings were evaluated by analyzing the Navier-Stokes equations for lubricant flow in the bearing gap with defining end leaks [1,2], which, when used at the plant, used the design, technology and the degree of loading of the bearings, gave a fairly accurate assessment consistent with the results of testing on a special stand for testing bearings.…”

“…The object of the design is a sliding bearing based on metal polymers, ceramic polymers, composite materials using quasicrystals. [3][4][5][6].…”

Development of the Composition and Modes of Spraying Antifriction Coating Reinforced with Quasicrystals for the Manufacture of Sliding Bearings

“…For this purpose, samples were made with a coating of a metallic composite material based on copper with a quasicrystal content of 14% by weight. The samples were steel rings with a diameter of 28 mm with a coating applied on the end part ( Figure 5) [5,6]. Tests for wear resistance were carried out in a pair with a counterbody from steel 30×13 on an I-47 testing machine according to MM 1.595 5 315 for one hour at an axial load of 30 MPa and a movement speed of 0.1 m / s in a dry environment.…”