Open AccessIncreasing the anti-friction properties of carbon-containing materials at high temperatures
Author(s) -
M. N. Roshchin
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/548/5/052015
Subject(s) - materials science , lubrication , friction coefficient , tribology , tellurium , atmospheric temperature range , coefficient of friction , polytetrafluoroethylene , composite material , carbon fibers , selenium , range (aeronautics) , metallurgy , thermodynamics , composite number , physics
The article is devoted to high-temperature tribological testing of carbon-containing materials during friction on 40X13 steel in the temperature range from +20 to +800°C in atmospheric conditions. The choice of temperature and test environment is determined by the prospects of creating spacecraft drives for operation without lubrication in extreme conditions. The researches have shown that the modified friction surface of CCCM in the environment of tellurium, selenium and polytetrafluoroethylene combined with steel 40X13 reduces the coefficient of friction. At a load of 1.0 MPa, sliding speeds of 0.05; 0.16; 0.25 m/s and a temperature range of +20°C - +600°C, the friction coefficient does not exceed the value of 0.3. At a temperature of 600°C, a load of 1.0 MPa, and a speed of 0.16 m/s, the friction coefficient of the samples treated in tellurium, selenium, and polytetrafluoroethylene environments is 1.8 and 4.8 times lower than that of CCCM, respectively.