Dr. Maria Zhang, and Olivia P. Kurek. “Coating Materials for Automotive Piston Rings: A Review of Tribological Performance and Engine Impact”. Frontiers in Emerging Engineering & Technologies 2, no. 06 (June 1, 2025): 8–15. Accessed August 18, 2025. https://irjernet.com/index.php/feet/article/view/118.