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Modification Of Adhesion And Friction By Surface Structuring
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Book Synopsis Modification of Adhesion and Friction by Surface Structuring by : Ying Bai
Download or read book Modification of Adhesion and Friction by Surface Structuring written by Ying Bai and published by . This book was released on 2014 with total page 185 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enhanced and selective adhesion, and controlled friction between contact surfaces are highly desirable mechanical properties for high-level functional materials. There are many instances in nature where such properties have been obtained by design of near-surface architecture. Inspired by many highly functional biological systems, we have explored bio-mimetic materials with different surface patterning, with the goal of designing surfaces that have unique combinations of contact mechanical properties. In the studies presented here, we show how: (a) highly selective adhesion can be achieved by complementarity of patterned charge and shape, and (b) how friction can be modulated by spatial variation in stiffness, and how structured surfaces interact with surface roughness. We consider how adhesion selectivity can be accomplished by complementarity of shape and inter-surface forces. We have studied an example each of charge and shape complementarity for selective adhesion between extended surfaces. First, we studied theoretically how surfaces patterned with stripes of charge interact with each other, and exhibit strong selectivity on rigid surfaces. However, deformability of the surfaces plays a crucial role in modulating adhesion by accommodating mismatches. To achieve shape complementarity, we designed and fabricated patterned elastomeric surfaces with lines of channels and complementary ridges with dimensions at the micrometer scale. We show that such surfaces have highly enhanced effective adhesion for shape complementary pairs and low adhesion between surfaces with a shape mismatch. We find that the pillar/channel combinations form defects to accommodate interfacial misalignment. These defects are interfacial dislocations. Adhesion between complementary surfaces is enhanced by crack trapping and friction, and attenuated due to the energy released by dislocation structures. In addition to enhanced adhesion, we studied the deliberate control of friction through near-surface micro-structures. Friction measurements on elastomeric surfaces patterned with periodic variation in stiffness show that it undergoes an "auto-roughening" transition under shear and this process can strongly attenuate overall sliding friction. Friction reduction is due to reduction of real contact area, as the initially full contact breaks up into partial contact at the interface. Finite element analysis demonstrates how auto-roughening depends on the modulus mismatch, frictional stress and normal displacement. A surface with random roughness is used to study sliding friction against micro-channel structures under fixed normal force. In contrast to a smooth surface, against which structured surfaces all have highly reduced sliding friction, the roughened surface can exhibit significantly larger frictional force on a structured surface. The enhancement of sliding friction is governed by channel depth, spacing and applied normal force.
Book Synopsis Tailoring Surfaces: Modifying Surface Composition And Structure For Applications In Tribology, Biology And Catalysis by : Nicholas D Spencer
Download or read book Tailoring Surfaces: Modifying Surface Composition And Structure For Applications In Tribology, Biology And Catalysis written by Nicholas D Spencer and published by World Scientific. This book was released on 2011-03-08 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of this book is surface modification, with the goal of tailoring materials for a specific application. By means of this approach, ideal bulk properties of a material, such as its tensile strength (temperature stability, density, or even cost) can be combined with optimized surface properties, such as hardness, biocompatibility, low or high friction or adhesion, water repellency or wettability, or catalytic activity.The works of the author — many of his crucial papers are included — deal with the understanding and modification of surfaces and span fields including catalysis, analytical surface science, self-assembled monolayers, tribology, biomaterials, superhydrophobicity and polymer coatings.
Book Synopsis Surface effects in adhesion, friction, wear, and lubrication by : Donald H. Buckley
Download or read book Surface effects in adhesion, friction, wear, and lubrication written by Donald H. Buckley and published by Elsevier. This book was released on 1981-01-01 with total page 643 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface effects in adhesion, friction, wear, and lubrication
Book Synopsis Surface Modification and Mechanisms by : George E. Totten
Download or read book Surface Modification and Mechanisms written by George E. Totten and published by CRC Press. This book was released on 2004-04-30 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leading readers through an extensive compilation of surface modification reactions and processes for specific tribological results, this reference compiles detailed studies on various residual stresses, reaction processes and mechanisms, heat treatment methods, plasma-based techniques, and more, for a solid understanding of surface structural changes that occur during various engineering procedures. This unique book explores topics previously ignored in other texts on surface engineering and tribology, offers guidelines for the consideration and design of wear life and frictional performance, and sections on laser impingement and nanometer scale surface modification.
Book Synopsis Sliding Friction by : Bo N.J. Persson
Download or read book Sliding Friction written by Bo N.J. Persson and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sliding friction is one of the oldest problems in physics and certainly one of the most important from a practical point of view. The ability to produce durable low-friction surfaces and lubricant fluids has become an important factor in the miniaturization of moving components in many technological devices, e.g., magnetic storage, recording systems, miniature motors and many aerospace components. This book will be useful to physicists, chemists, materials scientists, and engineers who want to understand sliding friction. The book (or parts of it) could also form the basis for a modern undergraduate or graduate course on tribology.
Book Synopsis Tailoring Surfaces by : Nicholas D. Spencer
Download or read book Tailoring Surfaces written by Nicholas D. Spencer and published by World Scientific. This book was released on 2011 with total page 690 pages. Available in PDF, EPUB and Kindle. Book excerpt: The focus of the book is the modification of surfaces to tailor them for a specific purpose. Using this method of surface modification, materials chosen for their bulk properties (tensile strength, temperature stability, density, price can be optimized for any particular application, which can lead to improved hardness, biological inertness or activity, corrosion resistance, low or high friction or adhesion, water repellency or wettability, or catalytic activity. The works of the author — many of his crucial papers are included — touches upon these surface properties and spans fields including catalysis, analytical surface science, self-assembled monolayers, tribology, biomaterials, superhydrophobicity and polymer coatings.
Book Synopsis Polymer Surface Modification: Relevance to Adhesion, Volume 4 by : Kash L. Mittal
Download or read book Polymer Surface Modification: Relevance to Adhesion, Volume 4 written by Kash L. Mittal and published by CRC Press. This book was released on 2007-05-11 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book documents the proceedings of the Fifth International Symposium on this topic, held in Toronto. The book is divided into two parts: Part 1: Surface Modification Techniques; Part 2: Adhesion Improvement to Polymer Surfaces.Various ways to modify a host of polymer surfaces for a variety of purposes are covered in this book, with emphasis on
Download or read book Ice Adhesion written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2020-12-15 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book presents ways to mitigate the disastrous effects of snow/ice accumulation and discusses the mechanisms of new coatings deicing technologies. The strategies currently used to combat ice accumulation problems involve chemical, mechanical or electrical approaches. These are expensive and labor intensive, and the use of chemicals raises serious environmental concerns. The availability of truly icephobic surfaces or coatings will be a big boon in preventing the devastating effects of ice accumulation. Currently, there is tremendous interest in harnessing nanotechnology in rendering surfaces icephobic or in devising icephobic surface materials and coatings, and all signals indicate that such interest will continue unabated in the future. As the key issue regarding icephobic materials or coatings is their durability, much effort is being spent in developing surface materials or coatings which can be effective over a long period. With the tremendous activity in this arena, there is strong hope that in the not too distant future, durable surface materials or coatings will come to fruition. This book contains 20 chapters by subject matter experts and is divided into three parts— Part 1: Fundamentals of Ice Formation and Characterization; Part 2: Ice Adhesion and Its Measurement; and Part 3: Methods to Mitigate Ice Adhesion. The topics covered include: factors influencing the formation, adhesion and friction of ice; ice nucleation on solid surfaces; physics of ice nucleation and growth on a surface; condensation frosting; defrosting properties of structured surfaces; relationship between surface free energy and ice adhesion to surfaces; metrology of ice adhesion; test methods for quantifying ice adhesion strength to surfaces; interlaboratory studies of ice adhesion strength; mechanisms of surface icing and deicing technologies; icephobicities of superhydrophobic surfaces; anti-icing using microstructured surfaces; icephobic surfaces: features and challenges; bio-inspired anti-icing surface materials; durability of anti-icing coatings; durability of icephobic coatings; bio-inspired icephobic coatings; protection from ice accretion on aircraft; and numerical modeling and its application to inflight icing.
Book Synopsis Surface Modification by Solid State Processing by : Rosa M. Miranda
Download or read book Surface Modification by Solid State Processing written by Rosa M. Miranda and published by Woodhead Publishing. This book was released on 2018-11-13 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Surface Modification by Solid State Processing describes friction-based surfacing techniques for surface modification to improve resistance to corrosion and wear, also changing surface chemistry. Surface conditions are increasingly demanding in industrial applications and surface modification can reduce manufacturing and maintenance costs, leading to improved component performance, reliability and lifetime. Friction-based technologies are promising solid state processing technologies, particularly for light alloys, in the manufacturing of composite surface and functionally graded materials This title is divided into five chapters, and after an introduction the book covers friction surfacing; friction stir processing; surface reinforcements of light alloys; and characterization techniques based on eddy currents. Describes friction-based surfacing techniques for surface modification to improve resistance to corrosion and wear, and change surface chemistry Emphasizes industrial applications Describes existing and emerging techniques
Book Synopsis Polymer Adhesion, Friction, and Lubrication by : Hongbo Zeng
Download or read book Polymer Adhesion, Friction, and Lubrication written by Hongbo Zeng and published by John Wiley & Sons. This book was released on 2013-02-07 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specifically dedicated to polymer and biopolymer systems, Polymer Adhesion, Friction, and Lubrication guides readers to the scratch, wear, and lubrication properties of polymers and the engineering applications, from biomedical research to automotive engineering. Author Hongbo Zeng details different experimental and theoretical methods used to probe static and dynamic properties of polymer materials and biomacromolecular systems. Topics include the use of atomic force microscopy (AFM) to analyze nanotribology, polymer thin films and brushes, nanoparticles, rubber and tire technology, synovial joint lubrication, adhesion in paper products, bioMEMS, and electrorheological fluids.
Book Synopsis Structure-Property Relationships in Surface-Modified Ceramics by : C.J. McHargue
Download or read book Structure-Property Relationships in Surface-Modified Ceramics written by C.J. McHargue and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of ion beams for the modification of the structure and properties of the near-surface region of ceramics began in earnest in the early 19805. Since the mechanical properties of such materials are dominated by surface flaws and the surface stress state, the use of surface modification tech niques would appear to be an obvious application. As is often the case in research and development, most of the initial studies can be characterized as cataloging the response of various ceramic materials to a range of ion beam treatments. The systematic study of material and ion beam parameters is well underway and we are now designing experiments to provide specific information about the processing parameter - structure-property rela tionships. This NATO-Advanced Study Institute was convened in order to assess our current state of knowledge in this field, to identify opportunities and needs for further research, and to identify the potential of such processes for technological application. It became apparent that this class of inorganic compounds, loosely termed ceramics, presents many challenges to the understanding of ion-solid inter actions, the relationships among ion-beam parameters, materials parameters, and the resulting structures, as well as relationships between structure and properties. In many instances, this understanding will represent a major extension of that learned from the study of metals and semiconductors.
Book Synopsis Polymer Tribology by : Sujeet K. Sinha
Download or read book Polymer Tribology written by Sujeet K. Sinha and published by World Scientific. This book was released on 2009 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the new and now-expanding field of friction, wear, and other surface-related mechanical phenomena for polymers. Polymers have been used in various forms such as bulk, films, and composites in applications where their friction, wear resistance, and other surface-related properties have been effectively utilized. There are also many examples in which polymers have performed extremely well, such as in tyres, shoes, brakes, gears, bearings, small moving parts in electronics and MEMS, cosmetics/hair products, and artificial human joints. Around the world, much research is currently being undertaken to develop new polymers, in different forms, for further enhancing tribological performance and for finding novel applications. Keeping in view the importance of tribology of polymers for research and technology as well as the vast literature that is now available in research papers and review articles, this timely book brings together a wealth of research data for an understanding of the basic principles of the subject.
Book Synopsis Tribological Applications of Composite Materials by : Mohamed Thariq Hameed Sultan
Download or read book Tribological Applications of Composite Materials written by Mohamed Thariq Hameed Sultan and published by Springer Nature. This book was released on 2020-12-14 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the current advances and practices in tribological applications of composite materials under various processes, presenting the development, characterization, and morphological properties of composite materials in tribological applications. It covers a wide range of subjects, extending from fundamental research on the tribological characteristics of various multi-phase materials to the final applications of composites in wear loaded, technical components. It brings together contributions from researchers who discusses innovative experimental approaches and analytical techniques, creating a reference with comprehensive coverage of modern research techniques and the potential application of tribological composites in biomedical, aerospace, automotive, marines and construction industries. This volume will be of interest to material science researchers working in both industry and academia
Download or read book Textile Dyeing written by Peter Hauser and published by BoD – Books on Demand. This book was released on 2011-12-14 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt: The coloration of fibers and fabrics through dyeing is an integral part of textile manufacturing. This book discusses in detail several emerging topics on textile dyeing. "Textile Dyeing" will serve as an excellent addition to the libraries of both the novice and expert.
Book Synopsis Polymer Surfaces and Interfaces: Characterization, Modification and Application by : Kash L. Mittal
Download or read book Polymer Surfaces and Interfaces: Characterization, Modification and Application written by Kash L. Mittal and published by CRC Press. This book was released on 2023-01-06 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymeric materials are used for a legion of applications in a wide array of technological areas, and their proper surface/interface characteristics are of cardinal importance for their applications. Therefore, the need to characterize polymer surfaces/interfaces and their suitable modification to impart desired characteristics is quite patent. This book chronicles the proceedings of the Symposium on Polymer Surfaces and Interfaces: Characterization, Modification and Application held as a part of the Society of Plastics Engineers Annual Technical Conference, Boston, May 7--11, 1995. The articles in this book address many aspects of polymer surfaces and interfaces. Topics covered include: various ways (chemical, photochemical, laser, flame, corona) to modify polymer surfaces; modification of contact lens surfaces; various ways to analyze/characterize polymer surfaces; metal/polymer interfaces; metal/polyimide adhesion; metal/self-assembled organic monolayer interfaces; polymer alignment layers for liquid crystals; alignment of liquid crystal surfaces; polyimide alignment layers; molecular re-orientation of polymer surfaces; plasma polymerized organic coatings; epoxy/fiber interphase; epoxy underfill materials for packaging integrated circuits; transport in polymers; polymer miscibility; and cell adhesion.
Book Synopsis Responsive Polymer Surfaces by : Danqing Liu
Download or read book Responsive Polymer Surfaces written by Danqing Liu and published by John Wiley & Sons. This book was released on 2017-07-14 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adopting an integrated approach, this book covers experiments, theory, and emerging applications. In the first part surfaces are described that change from flat to either a random corrugated or to a well-structured structure, while the second part deals with those surface structures integrated in the coating surface where the structures change their shape or dimension when addressed by an external trigger. A variety of materials are addressed, including liquid crystal polymers, hydrogels, hard acrylates, and soft silicones. The whole is rounded off by a discussion of various applications, including surface controlled flows in microfluidic systems. Of interest to chemists and engineers, researchers in industry and academia, as well as those working in the paint industry and hydrodynamics.
Download or read book Plastics Additives written by J.C.J. Bart and published by IOS Press. This book was released on 2006-03-15 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Cover-to-cover reading of Plastics Additives, Advanced Industrial Analysis, is recommended for both professional analysts and plastics technologists. Professor Bart’s prose style is easy to read. A professional background in analytical chemistry is not assumed. Particularly valuable is the trove of good advice as to which approach might be best in a given situation. Every department with a serious interest in additive / property relations should invest in a copy.” -- PMAD Newsletter. This industrially relevant and up-to-date resource deals with all established and emerging analytical methods for in-polymer additive analysis of plastics formulations. Quality assurance and industrial troubleshooting all benefit from direct analysis modes. Plastics Additives comprises detailed coverage of solid-state spectroscopy, thermal analysis and pyrolysis, laser techniques, surface studies and microanalysis along with process analytics, quantitative analysis and modern method development and validation applied to additives in polymers. The book is organised for quick and easy reference and is extensively illustrated with over 200 figures, 300 flow diagrams and tables to facilitate rapid understanding of this topic, and it contains 4000 references. Emphasis is on understanding (principles and characteristics) and industrial applicability.
