Mechanical and Tribological Behavior of Unsaturated Polyester NanoCarbon Black Composite. J. eng. sustain. dev. [Internet]. 2013 Dec. 1 [cited 2024 Jul. 22];17(6):78-86. Available from: https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1026