Ultralow Friction Behaviors of Hydrogenated Fullerene-Like Carbon Films: Effect of Normal Load and Surface Tribochemistry
作者： Z. Wang , C. B. Wang , B. Zhang , J. Y. Zhang
DOI: 10.1007/S11249-010-9739-5
关键词:
摘要: Friction and wear behaviors of hydrogenated fullerene-like (H-FLC) carbon films sliding against Si3N4 ceramic balls were performed at different contact loads from 1 to 20 N on a reciprocating tribometer in air. It was found that the exhibited non-Amontonian friction behaviors, coefficient (COF) decreased with normal load increasing: COF ~0.112 load, deceased ultralow value (~0.009) load. The main mechanism responsible for low under varying pressure is governed by transfer film formed resided interfaces. In addition, unique structures induce well elastic property H-FLC (elastic recovery 78%), which benefits high tolerance induces rate air condition. For an 0.009 tested air, time flight secondary ion mass spectrometry (ToF-SIMS) signals collected inside outside tracks indicated presence C2H3− C2H5− fragments after tribological tests surface. We think tribochemistry observed tolerance, chemical inertness carbon-containing instead graphitization steady-state coefficients friction, wear, interfacial shear stress.
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