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Nanoscale Materials for Macroscale Applications: Design of Superlubricants from 2D Materials
Published in Klaus D. Sattler, st Century Nanoscience – A Handbook, 2020
This chapter highlights recent advances in controlling the friction and wear characteristics of sliding systems by incorporating 2D materials. Unique properties of 2D materials, such as high adhesion energy, impermeability to liquids and gases, corrosion inhibition, high mechanical strength, and easy shearing provide excellent protection of the underlying substrates and minimize their interaction-induced wear. Current advances in synthesis techniques enable 2D materials can be easily supplied into the contact interface and that can be replenished in case of wear. As a result, with 2D materials, friction and wear of the sliding systems can be minimized. Even more, the availability of 2D materials enabled eliminating frictional energy losses and led to the discovery of new macroscale superlubricity mechanisms. Three different mechanisms of superlubricity, structurally-, mechanically-, and tribochemically-activated, were demonstrated when 2D materials were used in specific configurations. Such new advances potentially will have a substantial impact on industrial applications of 2D materials pertaining to moving components.
Biocoatings and additives as promising candidates for ultralow friction systems
Published in Green Chemistry Letters and Reviews, 2021
Marcia Gabriely A. da Cruz, Tetyana M. Budnyak, Bruno V. M. Rodrigues, Serhiy Budnyk, Adam Slabon
Herein, we present a critical review on the latest advances and future perspectives on the application of biobased materials aiming at superlubricant pursuits, from the standpoint of Green Chemistry principles. Superlubricity applications are centered on carbon-based coatings, like diamond-like carbon (DLC), graphene, and related materials due to their compatibility.