Abstract

To improve the durability of aerospace moving parts during sequential/alternating atmosphere conditions, a dense multilayer coating (GO-MXene)LBL10 was deposited on stainless steel substrate by spraying-assisted layerby-layer alternate assembly based on hydrogen bonding. Under different atmospheric conditions, LBL coating presents significantly different wear lives (15,000 cycles in Air, 4200 cycles in N2). Additionally, the transfer film formed after Air-1000 cycles extended wear life of nearly 7000 cycles under N2 atmosphere. And LBL coating exhibited unique dynamic response characteristics under Air-N2 alternating conditions. The outstanding performance lies in MXene's bearing capacity, interface sliding, and secondary lubrication of transfer film, offering novel insights for sustainable lubrication in reusable space-ground transportation systems.

Keywords Plus: GRAPHENE，FRICTION，FILMS，SUPERLUBRICITY

Published in SURFACE & COATINGS TECHNOLOGY，Volume527；10.1016/j.surfcoat.2026.133377，MAY 1 2026