The work is devoted to high-temperature laboratory tribological tests of the modified friction surface of CCCM. It was found that the modified friction surface of CCCM in Ni-Se-PTFE medium at friction on steel 40X13, temperature 300°C, load 1.0 MPa with an increase in speed from 0.05m/s leads to an increase in the coefficient of friction at 0.16 m/s by 11%, and at a speed of 0.25m/s by 16%. At a temperature of 700°C, a load of 1.0 MPa with an increase in speed from 0.05m/s entails an increase in the coefficient of friction at 0.16 m/s by 8%, and at a speed of 0.25m/s by 17%.