Dissipative Processes In Tribology

This book discusses dissipative phenomena, in particular the origins of friction at all scales, in mechanics, physics and chemistry, encountered in all fields of tribology, from thick film lubrication to dry friction.

This text discusses dissipative phenomena, in particular the origins of friction at all scales, in mechanics, physics and chemistry, encountered in all fields of tribology, from thick film lubrication to dry friction.

The papers contained within this volume focus on the transient aspects of the preocesses in tribology highlighting the differences obtained with stationery conditions, be they experimental analytical or numerical.

This is an indespensible guide to both researchers in academia and industry who wish to perform tribological experiments more effectively. With an extensive range of illustrations which communicate the basic concepts in experimental methods tribology more effectively than text alone. An extensive citation list is also provided at the end of each chapter facilitating a more thorough navigation through a particular subject. * Contains extensive illustrations * Highlights limitations of current techniques

The word tribology was fIrst reported in a landmark report by P. Jost in 1966 (Lubrication (Tribology)--A Report on the Present Position and Industry's Needs, Department of Education and Science, HMSO, London). Tribology is the science and technology of two interacting surfaces in relative motion and of related subjects and practices. The popular equivalent is friction, wear and lubrication. The economic impact of the better understanding of tribology of two interacting surfaces in relative motion is known to be immense. Losses resulting from ignorance of tribology amount in the United States alone to about 6 percent of its GNP or about $200 billion dollars per year (1966), and approximately one-third of the world's energy resources in present' use, appear as friction in one form or another. A fundamental understanding of the tribology of the head-medium interface in magnetic recording is crucial to the future growth of the $100 billion per year information storage industry. In the emerging microelectromechanical systems (MEMS) industry, tribology is also recognized as a limiting technology. The advent of new scanning probe microscopy (SPM) techniques (starting with the invention of the scanning tunneling microscope in 1981) to measure surface topography, adhesion, friction, wear, lubricant-fIlm thickness, mechanical properties all on a micro to nanometer scale, and to image lubricant molecules and the availability of supercomputers to conduct atomic-scale simulations has led to the development of a new fIeld referred to as Microtribology, Nanotribology, or Molecular Tribology (see B. Bhushan, J. N. Israelachvili and U.

The Running-In Process in Tribology is a collection of papers presented during the 8th Leeds-Lyon Symposium on Tribology held in the Institut National des Sciences Appliquées de Lyon, France in September 1981. The symposium was attended by 87 delegates from 13 countries, which showed a great level of interest on the scientific and industrial problems of running-in. Twenty eight papers are presented in the book, covering basic thermodynamics, mechanics of continuous solids, metallurgy, polymers, profilometry, and surface physics. Major topics such as elastohydrodynamics, roughness, and thermal effects in tribology are discussed as well. Mechanical engineers and materials scientists will find the book very insightful.

Recent research has led to a deeper understanding of the nature and consequences of interactions between materials on an atomic scale. The results have resonated throughout the field of tribology. For example, new applications require detailed understanding of the tribological process on macro- and microscales and new knowledge guides the rational

These papers represent the proceedings from the 29th Leeds-Lyon Symposium on Tribology, 'Tribological Research and Design for Engineering Systems' which was held in September 2002. Over 130 delegates from 18 countries attended the symposium, and the extensive discussions generated over 150 written questions and responses, which are documented at the end of this proceedings volume. There have been many advances in the field of tribology in recent years, with progress being made in the engineering and interaction of surfaces; micro and nano-tribology; elastohydrodynamics; surface films; surface texture; tribochemistry; wear and life prediction; with both experimental and theoretical contributions. These advances were reviewed, and the impact of this understanding on the fundamentals upon total engineering activity in design, manufacture and machine operation were considered. Readership: Scientists and researchers in the field of tribology.