ABSTRACT
The size, arrangement pattern and depth of the diamond macro-pores on the influence law of the friction coefficient and mechanism analysis are researched through experiments under adequate liquid supply conditions. The results showed that the pores depth and area ratio have a great influence on the friction performance of the friction pairs surface when the diamonds’ texture of the same arrangement and the tilt angle are etched in end faces. Under the working conditions of the study, not all the Stribeck curves of end faces with the diamond macro-pores texture show a monotonic rising trend in the hydrodynamic lubrication phase, but produce a fluctuation phenomenon. With an increase in the load, the liquid film thickness between the two end faces becomes thin, and therefore the fluid lubrication state gradually transforms into the mixed friction state in the aspect of friction state, which leads to the continuous reduction of the friction coefficient under the same conditions.
