Superlubricity is defined as a sliding regime in which friction or resistance to sliding vanishes. It has been shown that energy can be conserved by further reducing/removing friction in moving mechanical systems and this book includes contributions from world-renowned scientists who address some of the most fundamental research issues in overcoming friction. Superlubricity reviews the latest methods and materials in this area of research that are aimed at removing friction in nano-to-micro scale machines and large scale engineering components. Insight is also given into the atomic-scale origins of friction in general and superlubricity while other chapters focus on experimental and practical aspects or impacts of superlubricity that will be very useful for broader industrial community.* Reviews the latest fundamental research in superlubricity today* Presents 'state-of-the-art' methods, materials, and experimental techniques* Latest developments in tribomaterials, coatings, and lubricants providing superlubricity
Innovations in Graphene-Based Polymer Composites reviews recent developments in this important field of research. The book's chapters focus on processing methods, functionalization, mechanical, electrical and thermal properties, applications and life cycle assessment. Leading researchers from industry, academia and government research institutions from across the globe have contributed to the book, making it a valuable reference resource for materials scientists, academic researchers and industrial engineers working on recent developments in the area of graphene-based materials, graphene-based polymer blends and composites. Readers will gain insights into what has been explored to-date, along with associated benefits and challenges for the future. - Presents a strong emphasis on synthesis methods, functionalization, processing and properties - Includes chapters on characterization, electrical conductivity and modeling and simulation - Provides recent advances in applications, including drawbacks and future scope
Tribology of Polymers, Polymer Composites, and Polymer Nanocomposites combines fundamental knowledge with the latest findings in the area of polymer tribology. From testing of property-related mechanisms to prediction of wear using artificial neural networks, the book explores all relevant polymer types, including elastomers, epoxy-based, nylon, and more while also discussing their different types of reinforcement, such as particulates, short fibers, natural fibers, and beyond. New developments in sustainable materials, environmental effects, nanoscaled fillers, and self-lubrication are each discussed, as are applications of these materials, guidelines for when to use certain polymer systems, and functional groups of polymers. Experimental methods and modeling and prediction techniques are also outlined. The tribology of graphene-based, biodegradable, hybrid nanofiller/polymer nanocomposites and other types of polymers is discussed at length. - Synthesizes the latest cutting-edge research in the tribological behaviors and applications of polymeric materials - Covers all relevant polymer types and concepts, including elastomers and natural fibers, different types of reinforcement materials, sustainable materials, interfacial modifiers and the environmental effects of self-lubrication - Outlines modeling techniques and how filler-matrix pairings and other approaches can control wear mechanisms
Graphite, Graphene, and Their Polymer Nanocomposites presents a compilation of emerging research trends in graphene-based polymer nanocomposites (GPNC). International researchers from several disciplines share their expertise about graphene, its properties, and the behavior of graphene-based composites. Possibly the first published monograph of its kind, this book provides a comprehensive snapshot of graphite, graphene, and their PNCs, including the underlying physics and chemistry, and associated applications. Beginning with an introduction to natural and synthetic graphite, the precursors to graphene, the text describes their properties, characterization techniques, and prominent commercial applications. The focus then moves to graphene and its unique features, and techniques for its characterization. The chapters cover advances in electrochemical exfoliation of graphite, as well as exfoliation routes to produce graphene and graphite nanoplatelets for polymer composites. They also explore commercial use of graphene-based materials, such as emerging clean energy and pulse laser applications, and use as nanofillers in epoxy-based composites. The authors provide an overview of nanofillers and address two methods for GPNC preparation as well as specialized properties of GPNC. With its multidisciplinary approach, this book provides a broader scientific and engineering perspective necessary for meaningful advancements to take place.
Tribology and Applications of Self-Lubricating Materials provides insight into the complex mechanisms behind the development of self-lubricating materials, which due to their ability to transfer embedded solid lubricants to the contact surface to decrease wear rate and friction in the absence of an external lubricant, make up an important part of engineering materials used today. This book emphasizes an understanding of the tribological nature of different composites such as metal, polymer, and ceramic matrix composites and discusses the compatibility of these composites with specific lubricants. The book also offers a view of advancements in the development of self-lubricating mechanisms and covers the latest technologies in the field.
A monograph that locates graphene within the carbon chemistry alternatives available to materials engineers and explains how it is incorporated into polymer-matrix, as well as ceramic - and metal-matrix composite materials. It also investigates emerging uses of graphene in films, coatings and colloidal suspensions.
This book first introduces polymers and polymer composites which are widely used in different industrial and engineering applications where the proper selection of fiber, filler, and polymer can be tailored for particular application. The primary objective of this book is to broaden the knowledge of tribology of polymer composites in a new dimension for Industry 4.0. For instance, the book covers polymer composites used as self-lubricating material used in the automotive industry and other manufacturing equipment to reduce the effect of energy loss due to friction and wear. This book is of interest to researchers and industrial practitioners who work in the field of tribology of polymer composites, manufacturing equipment and production engineering.
Man lubricates mostly with oil. Nature lubricates exclusively with water. Pure water is a poor lubricant, but the addition of proteins, especially glycoproteins, can modify surfaces to make them far more lubricating at slow speeds. Understanding how nature does this, and the physical structures involved, is not only important for the understanding of diseases such as osteoarthritis, but also essential for the successful application of articulating implants, such as hips and knees, as well as the development of medical devices such as catheters and contact lenses. A host of important applications of water-based lubrication are already in place in the personal care and food industries, and further industrial applications of water-based lubrication could have a significant positive impact on the environment.This book is the first of its kind. It brings together the latest research in biological and biomimetic, water-based lubrication and is authored by the world's experts in the field.
The technology involved in lubrication by nanoparticles is a rapidly developing scientific area and one that has been watched with interest for the past ten years. Nanolubrication offers a solution to many problems associated with traditional lubricants that contain sulphur and phosphorus; and though for some time the production of nanoparticles was restricted by the technologies available, today synthesis methods have been improved to such a level that it is possible to produce large quantities relatively cheaply and efficiently. Nanolubricants develops a new concept of lubrication, based on these nanoparticles, and along with the authors’ own research it synthesises the information available on the topic of nanolubrication from existing literature and presents it in a concise form. Describes the many advantages and potential applications of nanotechnology in the tribological field. Offers a full review of the state-of-the-art as well as much original research that is yet unpublished. Includes sections on boundary lubrication by colloïdal systems, nanolubricants made of metal dichalcogenides, carbon-based nanolubricants, overbased detergent salts, nanolubricants made of metals and boron-based solid nanolubricants and lubrication additives. Authored by highly regarded experts in the field with contributions from leading international academics. Nanolubricants will appeal to postgraduate students, academics and researchers in mechanical engineering, chemical engineering and materials science. It should also be of interest to practising engineers with petroleum companies and mechanical manufacturers.
In most tribological applications, liquid or grease based lubricants are used to facilitate the relative motion of solid bodies to minimize friction and wear between interacting surfaces. The challenges for liquid lubricants arise in extreme environmental conditions, such as very high or low temperatures, vacuum, radiation, and extreme contact pressure. At these conditions, solid lubricants may be the alternative choice which can help to decrease friction and wear without incorporating liquid lubricants. Challenges with solid lubricants are to maintain a continuous supply of solid lubricants on the contact surfaces to act as lubricous layer between two sliding surfaces. Such a continuous supply is more easily maintained in the case of liquid lubricants when compared to solid lubricants. The most innovative development to ensure a continuous supply of solid lubricant to the contact surface during sliding is to introduce solid lubricant as reinforcement into the matrix of one of the sliding components. Composite materials are engineered or naturally occurring materials which contain two or more distinct constituents with significantly different chemical, physical and mechanical properties. Composites consist of reinforcement and matrix (metal, polymer and ceramics). Among various reinforcements, recent emerging material, solid lubricant, is found to have many favorable attributes such as good lubrication property. Self‐lubrication is the ability of a material to provide lubrication to the contact surface to decrease friction and wear rate in the absence of an external lubricant by transferring embedded solid lubricants in the composite to the interface. Self-lubricating composites (SLCs) are an important category of engineering materials that are increasingly replacing a number of conventional materials in the automotive, aerospace, and marine industries due to superior tribological properties. In SLCs, solid lubricant materials, including carbonous materials, molybdenum disulfide (MoS2), and hexagonal boron nitride (h-BN) are embedded into the matrices as reinforcements to manufacture a novel material with attractive self-lubricating properties. Several studies have been investigated the tribological properties of self-lubricating materials. This book fills that gap to have a reference book about self-lubricating materials and their properties to help scientists, engineers, and industries. This book discusses mechanisms of self-lubricating materials, self-lubricating properties and the applications for industries. The chapters will be written by authoritative expertise in the field. Additionally, this book will demonstrate fundamental study and most advanced innovations in self-lubricating materials as regards to friction and wear. The chapters also include tribological properties of composites and coatings and some practical applications of self-lubricating materials.