A novel parallelly-arranged Ti3C2Tx resin based solid-grease composite coating with super-low friction/wear

To achieve the desired performance of ultra-low friction and wear, we devised an ingenious solid-grease composite lubrication coating (TXL) that combined parallel-arranged Ti 3 C 2 T x resin coatings (TX) and lithium complex grease (LCG). The TX coating facilitated in-situ supply of Ti 3 C 2 T x and effectively inhibited crack propagation, while the LCG ensured a stable oil film bearing capacity. The Stribeck theory demonstrates that TXL consistently remained in boundary lubrication. At 253.93 MPa for 2 h, pure epoxy (EP) and TX coating failed, while TXL still enhanced anti-friction by 19.57 % and anti-wear by 64.31 % relative to EPL. Combining the dual advantages of Ti 3 C 2 T x that promotes lubrication state change and oil-based films supplied by LCG, TXL demonstrates enormous potential for long-lasting, efficient, and stable lubrication.