Laser Surface Processing And Characterization
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Laser Surface Processing And Characterization
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Author : I.W. Boyd
language : en
Publisher: Elsevier
Release Date : 1992-03-09
Laser Surface Processing And Characterization written by I.W. Boyd and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-03-09 with Technology & Engineering categories.
The contributions in this volume reflect not only the growing understanding of the underlying mechanisms controlling the various reactions in laser surface processing, but also the potential of several developing applications of direct processing. The most notable trend in the field currently is the technique of laser ablation, which is reported in almost a quarter of the papers in this volume. Whilst by no means a new phenomenon, attention has until recent years remained in the area of lithography and UV-sensitive materials. The growth in interest lies in the use of the technique to grow multi-component thin films and multi-layers. A number of papers on the topic of process diagnostics and in-situ measurements are also included. The theme of these annual meetings is centred around the physical and chemical modification of thin films and surfaces induced by the action of photon, ion, neutral, or electron beams in a variety of environments. Consequently these proceedings provide a comprehensive and unified presentation of the latest developments in this field.
Laser Surface Processing And Characterization
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Author : I. W. (ed.). Boyd
language : en
Publisher:
Release Date : 1992
Laser Surface Processing And Characterization written by I. W. (ed.). Boyd and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Laser Surface Processing And Characterization
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Author :
language : en
Publisher:
Release Date : 1992
Laser Surface Processing And Characterization written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with categories.
Advances In Laser Surface Treatment Of Engineering Ceramics
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Author : Pratik P. Shukla
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2011-08
Advances In Laser Surface Treatment Of Engineering Ceramics written by Pratik P. Shukla and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-08 with categories.
Laser surface treatment of engineering ceramics offers many advantages in comparison with conventional processing techniques. Having said that, it is still difficult to laser process engineering ceramics without using any pre-or-post heating methods due to the general nature of the ceramics. This book identifies the broader effects of various laser surface treatment conditions, characterization techniques, assessment and identification of a method to determine the fracture toughness property, K1c, and the development of a thermal FEM of laser surface treated engineering ceramics. In addition, the contributions of laser-beam brightness as a parameter of laser processing and the influence thereof on the engineering ceramics have been identified from a fundamental viewpoint. The outcome of this book could be the adoption and further development of laser assisted ceramic processing techniques such as joining (welding) and in applications where laser beam surface modification and characterization techniques for engineering ceramics are necessary.
Viability And Characterization Of The Laser Surface Treatment Of Engineering Ceramics
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Author : Pratik P. Shukla
language : en
Publisher:
Release Date : 2011
Viability And Characterization Of The Laser Surface Treatment Of Engineering Ceramics written by Pratik P. Shukla and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Laser Processing And Analysis Of Materials
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Author : Walter W. Duley
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Laser Processing And Analysis Of Materials written by Walter W. Duley and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
It has often been said that the laser is a solution searching for a problem. The rapid development of laser technology over the past dozen years has led to the availability of reliable, industrially rated laser sources with a wide variety of output characteristics. This, in turn, has resulted in new laser applications as the laser becomes a familiar processing and analytical tool. The field of materials science, in particular, has become a fertile one for new laser applications. Laser annealing, alloying, cladding, and heat treating were all but unknown 10 years ago. Today, each is a separate, dynamic field of research activity with many of the early laboratory experiments resulting in the development of new industrial processing techniques using laser technology. Ten years ago, chemical processing was in its infancy awaiting, primarily, the development of reliable tunable laser sources. Now, with tunability over the entire spectrum from the vacuum ultraviolet to the far infrared, photo chemistry is undergoing revolutionary changes with several proven and many promising commercial laser processing operations as the result. The ability of laser sources to project a probing beam of light into remote or hostile environments has led to the development of a wide variety of new analytical techniques in environmental and laboratory analysis. Many of these are reviewed in this book.
Surface Processing Laser Lamp Plasma
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Author : J. Perrière
language : en
Publisher: Elsevier Science
Release Date : 1999-03-01
Surface Processing Laser Lamp Plasma written by J. Perrière and has been published by Elsevier Science this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-03-01 with Science categories.
This book contains both the invited and the contributed papers presented at the Symposium "Surface Processing: Laser, Lamp, Plasma" held during the annual Spring Meeting of the European Materials Research Society in Strasbourg, France, June 16-19 1998. Surface processing of materials using laser, lamp or plasma is one of the most active fields of research in Europe and, as such, requires to be periodically reviewed at International Conference level. This year, the expanded surface processing symposium lasted for 3.5 days and, as an international forum, addressed not only fundamental questions in the field but also progress and new perspectives in various applications. The major subjects discussed during the meeting included fundamental process studies, modelling of growth mechanisms and surface modification, characterization of synthesised or modified materials, material modification at a nanometric scale, development of in-situ analytical techniques and applications towards device fabrication. About 200 papers were presented by some 120 participants.
Laser Processing Surface Treatment And Film Deposition
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Author : J. Mazumder
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Laser Processing Surface Treatment And Film Deposition written by J. Mazumder and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Synthesis of nonequilibrium metallic phases has been an area of great interest to the materials processing community since early 1960. Inherent rapid cooling rates in laser processing are being used to engineer non-equilibrium microstructures which cannot be rivaled by other processes. This lecture will discuss the phenomena involved and its application in designing materials with tailored properties. What is non-equilibrium Synthesis? This is a synthesis method to produce binary or higher order materials where kinetics of the pro cess affects the transport of the constituent elements during phase transformation resulting in a composition or crystallographic configuration which is different from what is observed when the elements arranges themselves with the lowest possible Gibbs Free energy, which is the equilibrium condition. Figure 1 illustrates the phenomena. Phase diagram under equilibrium condition is illustrated by the solid line whereas the no-equilibrium phase diagram is represented by the dotted line. One can observe the shrinkage of the phase field under non-equilibrium condition. Any alloy composition between the solidus lines of the equilibrium and non-equilibrium phase diagram will be a non equilibrium alloys with extended solid solution.
Laser Surface Treatment Of Metals
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Author : C.W. Draper
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Laser Surface Treatment Of Metals written by C.W. Draper and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Medical categories.
Proceedings of the NATO Advanced Study Institute, San Miniato, Italy, September 2-13, 1985
Processing And Characterization Of Laser Synthesized Overcoats For Surface Engineering
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Author : Karthikeyan Nagarathnam
language : en
Publisher:
Release Date : 1994
Processing And Characterization Of Laser Synthesized Overcoats For Surface Engineering written by Karthikeyan Nagarathnam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with categories.
Surface modification of engineering materials using lasers by means of alloying and cladding have opened up numerous applications in recent years to selectively improve the tribological and high temperature corrosion properties without affecting the bulk-properties of the substrate. The present investigation has been focused on developing such laser-synthesized cost-effective coatings. The major emphasis has been given to identify the effects of key laser processing parameters such as laser power, process speed, and powder feed rate on the microstructure, compositional homogeneity, coating geometry, mechanical properties, tribological characteristics and high temperature oxidation behavior. The coatings include Fe-Cr-W-C and Fe-W-Co-Cr-V-C alloy systems on low carbon steel substrate for wear resistance applications at low to medium temperatures and Fe-Cr-Al-Y coatings on stainless steel substrates for high temperature applications ($>$1000$rmspcirc C).$ The Fe-Cr-W-C coatings were found to solidify via hypoeutectic (primary fcc-$gamma$ phase and interdendritic $gamma$ and Cr-rich $rm Msb7Csb3$ phase (hypoeutectic) or hypereutectic (primary Cr-rich carbides and eutectic network) solidification modes depending on the alloy composition. In-situ TEM study of the Fe-Cr-W-C coatings (at $570rmspcirc C)$ provided systematic understanding of the fundamental phase change characteristics with fcc-$gamma$ phase changing to a bcc-$alpha$ phase and stability of Cr-rich $rm Msb7Csb3$ carbides with adequate hardness after about 3.2 hours. The tribological tests revealed that the major friction mechanism is due to plowing and the wear resistance is attributed to the fine grained carbide network in a strained $gamma$-matrix. The high speed tool coatings were found to contain primary $gamma$ phase and $alpha$-ferrite in the matrix, with V-rich (MC) and W-rich $rm (Msb6C$ and $rm Msb2C)$ carbides in the grain boundaries and in the eutectic and cause secondary hardening after thermal treatment at $550spcircrm C$ for 2 hours due to martensitic and secondary carbide precipitation reactions. Fe-Cr-Al-Y coatings were found to provide excellent high temperature oxidation protection at $1200spcircrm C$ for about 100 hours with the formation of $alpha$-$rm Alsb2Osb3$ and thermally stable $alpha$-phase comprising Fe, Cr and Al in the matrix regions. Based on several experimental findings, Laser Processing Maps for Surface Engineering Applications (LPMSEA) which are useful for engineers in the industry and academic researchers were developed.