SUBLIMED C-60 FILMS FOR TRIBOLOGY

Fullerenes take the form of hollow, geodesic domes, which are formed f rom a network of pentagons and hexagons. The C60 molecule has the high est possible symmetry (icosahedral) and assumes the shape of a soccer ball. At room temperature, fullerene molecules pack in a face-centered -cubic lattice bonded with weak van der Waals attractions. Fullerenes can be dissolved in solvents such as toluene and benzene and easily su blimed. The resilience, high load bearing capacity, low surface energy , high chemical stability, and spherical shape of C60 molecules and we ak intermolecular bonding offer great potential for various mechanical and tribological applications. Sublimed films of C60 have been produc ed and friction and wear performance of these films in various operati ng environments are the subject of this letter.