About the article
A.N. BOLOTOV, Dr. Sc., G.B. BURDO, Dr. Sc.
The dynamics of changes in the contact potential difference between metal surfaces lubricated with magnetic oil and its components has been studied. It is shown that the lubricating properties of the studied liquids correlate with the magnitude of the change in the contact potential difference after their application. In order to predict the operational properties of friction units lubricated with magnetic oil, specific physical and chemical features of processes occurring on solid surfaces after applying magnetic lubricant have been studied in detail. Estimates of the energy changes occurring on the surface after applying magnetic oil to it were made based on the work of the electron output. The effect of dispersed magnetite particles on the output operation was studied using a two-component magnetic oil. Magnetite particles adhere to the surface under the action of Van der Waals or dipole interaction and partially shield it. It follows from the data obtained that the addition of magnetic particles to the triethanolamine liquid does not lead to a significant change in the output operation over the entire time range. At the same time, magnetite particles covered with a layer of adsorbed fatty acid molecules increase the work of the electron output.
magnetic fluid, surface, electron work function, operational properties.