Abstract
The issues of the friction engagement of a carbon-carbon composite with steel under conditions of temperature and composition of the atmosphere of the planet Venus are studied in the article. The statement on the admissibility of using a carbon-carbon composite in friction units in an open atmosphere is substantiated. Antifriction properties of a carbon-carbon composite are investigated for friction against steel in the speed range 0.05 - 0.25 m / s and a contact pressure of 1 MPa. Tribological tests were carried out in sliding conditions according to the pin-on-disk scheme on a high-temperature test bench with a temperature range of 300-600 ° C. It has been shown experimentally that for given parameters of friction, there is no seizure of surfaces. Based on the study, it was found that the average value of the friction coefficient is 0.25, and the experimental data spread is less than 20%.
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