Coating sensing strategy for understanding the governing factors of tribofilm growth on diamond-like carbon

Synergism of TiO2 and Ni on the Growth of a Double-Layered Tribofilm: New Strategy for ZDDP Replacement

“…Tribological performance of polymer composites is not an intrinsic property. Although the complicated tribological processes have been far from being understood, abundant previous works demonstrated that tribofilm growth determines to a large extent the tribological performance of composites subjected to sliding under dry and boundary lubrication conditions. − Some of essential factors governing the tribofilm growth at dry polymer/metal sliding interface have been disclosed, which can provide instructions for formulating tribo-composites. − It has been commonly recognized that two-dimensional layered materials , (e.g., graphite and molybdenum disulfide (MoS 2 ) − ) in polymer matrices transfer easily onto the metallic counterface . Harris et al revealed that when poly­(ether–ether–ketone)/nanoalumina slides against a steel, breakage of polytetrafluoroethylene molecules occurs and carboxylate chain ends produced after a series of chemical actions finally chelate to both the steel and the nanoalumina surfaces.…”