An Evaluation of the Cooperative Effects of Solid Lubricants and Surface Texturing on Friction and Wear

Abstract

Under dry conditions, it has been
demonstrated that solid lubricants and
surface texturing greatly minimize wear and
friction. These two technologies have recently
been merged to maximize their benefits and
achieve better tribological performance. An
overview of the first half of this review article
discusses the state of the art for solid
lubricants and surface texturing, including
soft metals, polytetrafluoroethylene,
diamond-like carbon, and 2D layered
materials. The interaction between solid
lubricants and surface textures is then
examined, with a focus on the fundamental
mechanics. Finally, gaps in the current
comprehension of these synergies are noted,
and prospects for further study are offered.
The state-of-the-art advancement in this
research presents a comprehensive analysis of
solid lubricants, self-lubricating materials
and/or coatings, and their effective
capabilities that may be used under various
environmental situations, particularly at
higher temperatures. Examples of soft metals
include transition metallic dichalcogenides,
hexagonal boron nitride, graphite, and the
MAX phase. Other materials with layered
structures include chemically stable fluorides
and binary or ternary metallic oxides,
particularly alkaline earth chromates, and
sulphates are among the solid lubricants
taken into consideration and also, the
synergistic effects of these solid lubricants.
The constraints and potential innovations for
this paper also discuss high-temperature solid
lubricating applications along with new
insights into design concerns of
environmentally adaptive solid lubrication.