TRIBOLOGICAL BEHAVIOR AND LUBRICATION MECHANISM OF FINE PARTICLES IN THE BASE OIL SN500. J. eng. sustain. dev. [Internet]. 2019 Sep. 1 [cited 2024 Apr. 29];23(5):108-16. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/207