Tribology of Interface Layers

Tribology of Interface Layers PDF Author: Hooshang Heshmat
Publisher: CRC Press
ISBN: 1420014765
Category : Science
Languages : en
Pages : 465

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Book Description
To this point, the field of lubrication has been conceptualized using several noncontiguous modes of operation- boundary, fluid-film, and dry and solid lubrication. Engineers and analysts have long had to deal with old evidence that many tribological devices, such as flat surface and centrally pivoted sliders, can act as viable bearings- contradict

Tribology of Interface Layers

Tribology of Interface Layers PDF Author: Hooshang Heshmat
Publisher: CRC Press
ISBN: 1420014765
Category : Science
Languages : en
Pages : 465

Get Book Here

Book Description
To this point, the field of lubrication has been conceptualized using several noncontiguous modes of operation- boundary, fluid-film, and dry and solid lubrication. Engineers and analysts have long had to deal with old evidence that many tribological devices, such as flat surface and centrally pivoted sliders, can act as viable bearings- contradict

Tribology of Interface Layers

Tribology of Interface Layers PDF Author: Hooshang Heshmat
Publisher: CRC Press
ISBN: 0824758323
Category : Technology & Engineering
Languages : en
Pages : 464

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Book Description
To this point, the field of lubrication has been conceptualized using several noncontiguous modes of operation — boundary, fluid-film, and dry and solid lubrication. Engineers and analysts have long had to deal with old evidence that many tribological devices, such as flat surface and centrally pivoted sliders, can act as viable bearings — contradicting basic hydrodynamic theory. Tribology of Interface Layers introduces a new concept wherein disparate modes are shown to actually be particular phases of a tribological continuum spanning a wide array of material lubricants. The author details these phenomena and presents a novel definition of lubricants as intermediate layers. Explores the phenomenon of continuum spectrum as applied to new powder lubrication technology The book illustrates that contrary to previous understanding, the various lubrication modes — from dry to hydrodynamic to powder lubrication — all overlap each other within a tribological spectral continuum. It also elucidates the fact that bearings, seals, dampers, and similar devices using submicron powder lubricants possess quasi-hydrodynamic characteristics akin to conventional fluid films. Similarly, powder films possess quasi-hydrodynamic features that enable them to act as conventional fluid film bearings. The field of tribology has traditionally been presented in terms of disparate regimes, but this method of classification lacked sufficient rigor. This volume explains that characterization and treatment of any one regime may require the simultaneous accounting of several different modalities that are present in a particular mode of operation. Based on experimental and theoretical work, this text shows how the interdependence of powder and hydrodynamic lubrication exemplifies that perpetuity in tribological processes. Author Hooshang Heshmat was on hand for a book signing at the 2010 STLE Meeting. Dr. Heshmat was the 2007 recipient of the Mayo D. Hersey Award, bestowed on an individual in recognition of distinguished and continuous contributions over a substantial period of time to the advancement of the science and engineering of tribology. Check out Dr. Heshmat's wikipedia page.

Coatings Tribology

Coatings Tribology PDF Author: K. Holmberg
Publisher: Elsevier
ISBN: 0080875920
Category : Science
Languages : en
Pages : 457

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Book Description
This book presents a general view on thin surface coatings used for tribological applications and it is based on the current state of understanding. The mechanisms of friction and wear in sliding and rolling contacts of coated surfaces are described. Basic information on coating techniques, tribology and surface mechanisms is given. Based on collected experimental works information is given on the properties of thin soft coatings, such as polymer, lamellar solid and soft metal coatings; thin hard coatings, such as nitride, carbide, oxide, boride and diamond and diamond-like coatings; and multi-component and multi-layer coatings. The influence of interface layers and lubricants is highlighted. The methods available for characterization of coated surfaces and for mechanical and chemical evaluation of their tribological properties are described. Tribological evaluation methods for accelerated and field testing and the need for standardization of quality assurance procedures are discussed. A methodology for the selection of thin coatings for tribological applications is presented and knowledge based expert system approaches for coating selection are reviewed. For different application examples, the basic tribological contact mechanisms are described and the possibilities for improving their tribological properties by using surface coatings are discussed. The application examples include sliding and rolling bearings, gears, tools for cutting and forming, erosion resistant applications, magnetic recording systems and bio-medical implants.

Applied Tribology

Applied Tribology PDF Author: Michael M. Khonsari
Publisher: John Wiley & Sons
ISBN: 1118700260
Category : Technology & Engineering
Languages : en
Pages : 860

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Book Description
Insightful working knowledge of friction, lubrication, and wear in machines Applications of tribology are widespread in industries ranging from aerospace, marine and automotive to power, process, petrochemical and construction. With world-renowned expert co-authors from academia and industry, Applied Tribology: Lubrication and Bearing Design, 3rd Edition provides a balance of application and theory with numerous illustrative examples. The book provides clear and up-to-date presentation of working principles of lubrication, friction and wear in vital mechanical components, such as bearings, seals and gears. The third edition has expanded coverage of friction and wear and contact mechanics with updated topics based on new developments in the field. Key features: Includes practical applications, homework problems and state-of-the-art references. Provides presentation of design procedure. Supplies clear and up-to-date information based on the authors’ widely referenced books and over 500 archival papers in this field. Applied Tribology: Lubrication and Bearing Design, 3rd Edition provides a valuable and authoritative resource for mechanical engineering professionals working in a wide range of industries with machinery including turbines, compressors, motors, electrical appliances and electronic components. Senior and graduate students in mechanical engineering will also find it a useful text and reference.

Scratching of Materials and Applications

Scratching of Materials and Applications PDF Author: Sujeet K. Kumar Sinha
Publisher: Elsevier
ISBN: 0080468047
Category : Technology & Engineering
Languages : en
Pages : 334

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Book Description
The surface characterizations of engineering materials effects their scratch/abrasion/Mar resistance, coating adhesion/strength, and abrasive wear mechanism. Scratching of Materials and Applications has chapters devoted to direct industrial application and contains some of the important works that are being conducted. Scratch testing of materials has grown extensively since the earlier days of the Mohs Scale for ranking minerals according to their relative scratch resistance. This test has been used on metals, ceramics, glasses, polymers and coatings of various types and thicknesses.The chapters are grouped according to the type of the engineering materials used. The beginning chapters relate mostly to bulk polymers, which are followed by different types of coatings (hard wear resistant to the diamond-like carbon coatings) and finally, chapters on the application of scratching technique to metals and ceramics are included at the end of the book. Thus, the book covers a fairly wide spectrum of engineering materials which are useful to engineers and researchers.* Balances theoretical science with practical application* Demonstrates real-life applications within industry* Written experts in the fields of materials, tribology and surface mechanics

Vehicle Tribology

Vehicle Tribology PDF Author: M. Godet
Publisher: Elsevier
ISBN: 0080875823
Category : Technology & Engineering
Languages : en
Pages : 537

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Book Description
Vehicle Tribology was chosen as the topic for the 17th Leeds-Lyon Symposium, as it was decided to be a timely opportunity to bring together experts of many disciplines connected with problems of emissions, particulates and energy efficiency associated with the automobile engine. The volume contains 55 papers divided into eighteen sessions.

Structure evolution in tribological interfaces studied by multilayer model alloys

Structure evolution in tribological interfaces studied by multilayer model alloys PDF Author: Cihan, Ebru
Publisher: KIT Scientific Publishing
ISBN: 3731509997
Category : Technology & Engineering
Languages : en
Pages : 194

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Book Description
Recent studies of deformation mechanisms of metals and alloys pioneer the better investigation of the friction and wear behavior of materials with well-defined initial microstructures. Within this scope, in this work, the effect of sub-surface deformations on the resulting friction and wear behavior has been searched by means of a systematic experimental study on Au-Ni metallic multilayer model alloy system.

Coatings Tribology

Coatings Tribology PDF Author: Kenneth Holmberg
Publisher: Elsevier
ISBN: 0080931464
Category : Technology & Engineering
Languages : en
Pages : 577

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Book Description
The surface coating field is a rapidly developing area of science and technology that offers new methods and techniques to control friction and wear. New coating types are continually being developed and the potential applications in different industrial fields are ever growing, ranging from machine components and consumer products to medical instruments and prostheses. This book provides an extensive review of the latest technology in the field, addressing techniques such as physical and chemical vapour deposition, the tribological properties of coatings, and coating characterization and performance evaluation techniques. Eleven different cases are examined in close detail to demonstrate the improvement of tribological properties and a guide to selecting coatings is also provided. This second edition is still the only monograph in the field to give a holistic view of the subject and presents all aspects, including test and performance data as well as insights into mechanisms and interactions, thus providing the level of understanding vital for the practical application of coatings. * An extensive review of the latest developments in the field of surface coatings* Presents both theory and practical applications* Includes a guide for selecting coatings

Engineering Tribology

Engineering Tribology PDF Author: Gwidon Stachowiak
Publisher: Butterworth-Heinemann
ISBN: 0123977762
Category : Technology & Engineering
Languages : en
Pages : 883

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Book Description
Engineering Tribology, Fourth Edition is an established introductory reference focusing on the key concepts and engineering implications of tribology. Taking an interdisciplinary view, the book brings together the relevant knowledge from different fields needed to achieve effective analysis and control of friction and wear. Updated to cover recent advances in tribology, this new edition includes new sections on ionic and mesogenic lubricants, surface texturing, and multiscale characterization of 3D surfaces and coatings. Current trends in nanotribology are discussed, such as those relating to lubricants, coatings and composites, and geotribology is introduced. Suitable as an introductory text, a refresher or an on-the-job reference, Engineering Tribology, 4th Edition is intended for final year undergraduate and postgraduate students in mechanical engineering as well as professional engineers. It is also relevant to those working in materials engineering, applied chemistry, physics and bioengineering. - Offers a comprehensive overview of the mechanisms of wear, lubrication and friction in an accessible manner designed to aid novice engineers, non-specialists and students - Provides a reader-friendly approach to the subject using illustrations to break down the typically complex problems associated with tribology - Includes end-of-chapter problems to test understanding

Polymer Tribology

Polymer Tribology PDF Author: Sujeet K. Sinha
Publisher: Imperial College Press
ISBN: 1848162049
Category : Technology & Engineering
Languages : en
Pages : 724

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Book Description
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.