ABSTRACT Frictional energy dissipation accounts for ~30% of global primary energy consumption, highlighting the critical need for superlubricating materials (COF 300°C) fail to achieve superlubrication. This failure is attributed to two primary factors. On the one hand, the coating undergoes thermal degradation, the number of polar functional groups such as hydroxyl and epoxy groups decreases, and it is difficult to form surface hydroxylation at the friction interface. On the other hand, the degree of curing is strengthened, which inhibits the formation of EP transfer layer on the surface of the grinding ball.
Liu et al. (2026) studied this question.