Download or read book Modeling of Nucleation During Recrystallization written by and published by . This book was released on 1998 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: The number density and spatial distribution of nuclei determine the kinetics, and the evolution of microstructure and texture during recrystallization. The potential nucleation sites are the high angle boundaries that exist in the deformed microstructure. These could be either the original grain boundaries prior to deformation or boundaries created due to non-uniform plastic deformation on the microscopic scale. Discontinuous subgrain growth with or without the formation of high angle boundaries may also occur during recrystallization in the presence of long range orientation gradients existing in the deformation substructure. The paper presents Monte Carlo simulation results on the evolution of substructures for each of the above nucleation mechanisms. The evolution of recrystallized grain structure from a realistic substructure obtained by modeling the deformation of fcc polycrystals at the microstructural level is presented, and shows the collective contribution of the above nucleation mechanisms during recrystallization and grain growth. The simulations capture not only the kinetics and microstructural evolution but also the evolution of texture during recrystallization.
Download or read book Handbook of Industrial Crystallization written by Allan Myerson and published by Butterworth-Heinemann. This book was released on 2002-01-08 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystallization is an important separation and purification process used in industries ranging from bulk commodity chemicals to specialty chemicals and pharmaceuticals. In recent years, a number of environmental applications have also come to rely on crystallization in waste treatment and recycling processes.The authors provide an introduction to the field of newcomers and a reference to those involved in the various aspects of industrial crystallization. It is a complete volume covering all aspects of industrial crystallization, including material related to both fundamentals and applications. This new edition presents detailed material on crystallization of biomolecules, precipitation, impurity-crystal interactions, solubility, and design.Provides an ideal introduction for industrial crystallization newcomers Serves as a worthwhile reference to anyone involved in the fieldCovers all aspects of industrial crystallization in a single, complete volume
Download or read book Recrystallization and Related Annealing Phenomena written by F.J. Humphreys and published by Elsevier. This book was released on 2012-12-02 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: The annealing of deformed materials is of both technological importance and scientific interest. The phenomena have been most widely studied in metals, although they occur in all crystalline materials such as the natural deformation of rocks and the processing of technical ceramics. Research is mainly driven by the requirements of industry, and where appropriate, the book discusses the extent to which we are able to formulate quantitative, physically-based models which can be applied to metal-forming processes.The subjects treated in this book are all active research areas, and form a major part of at least four regular international conference series. However, there have only been two monographs published in recent times on the subject of recrystallization, the latest nearly 20 years ago. Since that time, considerable advances have been made, both in our understanding of the subject and in the techniques available to the researcher.The book covers recovery, recrystallization and grain growth in depth including specific chapters on ordered materials, two-phase alloys, annealing textures and annealing during and after hot working. Also contained are treatments of the deformed state and the structure and mobility of grain boundaries, technologically important examples and a chapter on computer simulation and modelling. The book provides a scientific treatment of the subject for researchers or students in Materials Science, Metallurgy and related disciplines, who require a more detailed coverage than is found in textbooks on physical metallurgy, and a more coherent treatment than will be found in the many conference proceedings and review articles.
Download or read book Modeling of the Recrystallization Textures of Al alloys After Hot Deformation written by and published by . This book was released on 1998 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recrystallization textures of Al-alloys can be explained by a growth selection of grains with an approximate 40°111 orientation relationship out of a limited spectrum of preferentially formed nucleus orientations. Accordingly, recrystallization textures can be modeled by the multiplication of a function f(g){sup nucl} describing the probability of nucleation of the various orientations with a function f(g){sup grow} representing their growth probability. Whereas the growth probability can be accounted for by a 40°111 transformation of the rolling texture, the nucleation probability of the respective grains is given by the distribution of potential nucleus orientations, which is known from local texture analysis for the most important nucleation sites in rolled Al-alloys, cube-bands, grain boundaries and second-phase particles. The contribution of each of these nucleation sites are determined according to an approach to calculate the number of nuclei forming at each nucleation site, which is based on microstructural investigations on the evolution of the various nucleation sites during deformation. The paper describes the model for recrystallization texture simulation in Al-alloys and gives examples of recrystallization textures of AA3004 deformed in plane strain compression at a variety of different deformation temperatures and strain rates.
Download or read book Crystal Growth For Beginners Fundamentals Of Nucleation Crystal Growth And Epitaxy Third Edition written by Ivan Vesselinov Markov and published by World Scientific. This book was released on 2016-12-29 with total page 633 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'The book is well organized and is pedagogical. By discussing crystallization in pure systems, the author introduces and describes the important concepts, physical parameters and theoretical models pertaining to nucleation and growth of crystals … If you are a young investigator or a graduate student whose research involves understanding the fundamentals of crystallization including nucleation and growth, this book will be a treat for you. Readers who have a strong background in physical chemistry or thermal physics may find the book easy to read. Nevertheless, this book should be a good reference to have on the bookshelf if you are an experienced researcher whose interest crosses the path with the general topics of crystal growth.'Acta Crystallographica Section BThe processes of new phase formation and growth are of fundamental importance in numerous rapidly developing scientific fields such as modern materials science, micro- and optoelectronics, and environmental science. Crystal Growth for Beginners combines the depth of information in monographs, with the thorough analysis of review papers, and presents the resulting content at a level understandable by beginners in science. The book covers, in practice, all fundamental questions and aspects of nucleation, crystal growth, and epitaxy.This book is a non-eclectic presentation of this interdisciplinary topic in materials science. The third edition brings existing chapters up to date, and includes new chapters on the growth of nanowires by the vapor-liquid-solid mechanism, as well as illustrated short biographical texts about the scientists who introduced the basic ideas and concepts into the fields of nucleation, crystal growth and epitaxy. All formulae and equations are illustrated by examples that are of technological importance. The book presents not only the fundamentals but also the state of the art in the subject.Crystal Growth for Beginners is a valuable reference for both graduate students and researchers in materials science. The reader is required to possess some basic knowledge of mathematics, physics and thermodynamics.
Download or read book Kinetics and Thermodynamics of Multistep Nucleation and Self Assembly in Nanoscale Materials Volume 151 written by Gregoire Nicolis and published by John Wiley & Sons. This book was released on 2012-05-22 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Advances in Chemical Physics series—the cutting edge of research in chemical physics The Advances in Chemical Physics series provides the chemical physics and physical chemistry fields with a forum for critical, authoritative evaluations of advances in every area of the discipline. Filled with cutting-edge research reported in a cohesive manner not found elsewhere in the literature, each volume of the Advances in Chemical Physics series presents contributions from internationally renowned chemists and serves as the perfect supplement to any advanced graduate class devoted to the study of chemical physics. This volume explores: Kinetics and thermodynamics of fluctuation-induced transitions in multistable systems (G. Nicolis and C. Nicolis) Dynamical rare event simulation techniques for equilibrium and nonequilibrium systems (Titus S. van Erp) Confocal depolarized dynamic light scattering (M. Potenza, T. Sanvito, V. Degiorgio, and M. Giglio) The two-step mechanism and the solution-crystal spinodal for nucleation of crystals in solution (Peter G. Vekilov) Experimental studies of two-step nucleation during two-dimensional crystallization of colloidal particles with short-range attraction (John R. Savage, Liquan Pei, and Anthony D. Dinsmore) On the role of metastable intermediate states in the homogeneous nucleation of solids from solution (James F. Lutsko) Effects of protein size on the high-concentration/low-concentration phase transition (Patrick Grosfils) Geometric constraints in the self-assembly of mineral dendrites and platelets (John J. Kozak) What can mesoscopic level in situ observations teach us about kinetics and thermodynamics of protein crystallization? (Mike Sleutel, Dominique Maes, and Alexander Van Driessche) The ability of silica to induce biomimetic crystallization of calcium carbonate (Matthias Kellermeier, Emilio Melero-GarcÍa, Werner Kunz, and Juan Manuel GarcÍa-Ruiz)
Download or read book Crystallization of Organic Compounds written by Hsien-Hsin Tung and published by John Wiley & Sons. This book was released on 2023-07-05 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Crystallization of Organic Compounds Practical resource covering applications of crystallization principles with methodologies, case studies, and numerous industrial examples for emphasis Based on the authors’ hands-on experiences as process engineers, through the use of case studies and examples of crystallization processes, ranging from laboratory development through manufacturing scale-up, Crystallization of Organic Compounds guides readers through the practical applications of crystallization and emphasizes strategies that have proven to be successful, enabling readers to avoid common pitfalls that can render standard procedures unsuccessful. Most chapters feature multiple examples that guide readers, step by step, through the crystallization of active pharmaceutical ingredients (APIs), including an analysis of the major methods of carrying out crystallization operations, their strengths and potential issues, as well as numerous examples of crystallization processes from development through manufacturing scale. Advancements in the field of crystallization have been integrated throughout the book in the newly revised Second Edition to ensure the content adequately reflects current state-of-the-art industrial know-hows and practice. The new edition also adds chapters addressing downstream operations after the crystallization, including filtration/washing and drying, together with industrial use cases. Crystallization of Organic Compounds includes detailed information on: Solubility and solid behavior, covering phase rule, polymorph, salt/co-crystal, chiral resolution and in-silico solubility prediction; and kinetics, covering seed, supersaturation, nucleation, crystal growth and model-based experimental design Critical issues in the crystallization practice, covering oiling out, seeding/wet-milling, agglomeration/aggregation, mixing scale-up and quality-by-design principles Cooling, anti-solvent, evaporation and reactive crystallization process design, covering batch and continuous operations with industrial examples Special applications, covering crystallization with ultrasound, reaction selectivity enhancement, and computation fluid dynamics, and solid dispersion With highly practical coverage of the subject, Crystallization of Organic Compounds is an essential resource for engineers and chemists involved with the development, scaling, or operation of crystallization process in the pharmaceutical and fine chemical industries, particularly those with degrees in chemical engineering and chemistry.
Download or read book Symposium on Nucleation and Crystallization in Glasses and Melts written by American Ceramic Society and published by Columbus, Ohio : American Ceramic Society. This book was released on 1962 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Recrystallization Modeling considering Second Phase Particles written by Carmen Schäfer and published by Cuvillier Verlag. This book was released on 2010-11-25 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recrystallization is a physical mechanism which significantly changes material texture and microstructure and thus, the physical properties of metallic materials. Since texture and microstructure can be changed within wide margins by respective processing, optimum processing conditions and best materials chemistry have to be found for low cost and high performance products. These requirements render empirical approaches ineffective and lead to a reorientation towards materials modeling- particular towards physical based modeling of recrystallization, which is topic of the present dissertation.
Download or read book Precision Crystallization written by Ingo Leubner and published by CRC Press. This book was released on 2009-09-28 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the fact that crystals make up an estimated 80% of chemical and pharmaceutical products, few resources exist that provide practical guidance on achieving precision control of their size and size distribution. Based on a model developed by the author and his colleagues, Precision Crystallization: Theory and Practice of Controlling Crystal Si
Download or read book Measurement of Crystal Growth and Nucleation Rates written by John Garside and published by IChemE. This book was released on 2002 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Previous ed.: published as Measurement of crystal growth rates. Germany: European Federation of Chemical Engineering, Working Party on Crystallization, 1990.
Download or read book Molecular Dynamics Modeling of Orientation induced Nucleation in Short Alkanes written by Predrag Dragutin Đurdjević and published by . This book was released on 2013 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enhancement of the primary flow-induced nucleation rate in short chain alkanes (C20 and C150) has been examined for different levels of orientation by atomistic molecular dynamics simulations. The nucleation rate has been found to change drastically by varying average molecular orientation and temperature. For example, it is possible to accelerate nucleation kinetics by three orders of magnitude at the same temperature, but varying the average level of orientation (P2 (cos [Theta])) . The size of the critical nucleus has been found to increase with the level of undercooling Tm - T decrease, consistent with the classical nucleation theory. Our atomnistic molecular dynamics simulation model is even tractable at the small levels of undercooling, thus clearly demonstrating the effects of orientation (melt anisotropy) on nucleation kinetics when thermal nucleation is expected to be negligible. Furthermore, we calculate the influence of melt anisotropy on the growth rate. As expected, the growth rate is also altered by melt anisotropy. Furthermore, the growth rate maximum always occurs at the temperature above the nucleation kinetics maximum.
Download or read book Handbook of Materials Modeling written by Sidney Yip and published by Springer Science & Business Media. This book was released on 2007-11-17 with total page 2903 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first reference of its kind in the rapidly emerging field of computational approachs to materials research, this is a compendium of perspective-providing and topical articles written to inform students and non-specialists of the current status and capabilities of modelling and simulation. From the standpoint of methodology, the development follows a multiscale approach with emphasis on electronic-structure, atomistic, and mesoscale methods, as well as mathematical analysis and rate processes. Basic models are treated across traditional disciplines, not only in the discussion of methods but also in chapters on crystal defects, microstructure, fluids, polymers and soft matter. Written by authors who are actively participating in the current development, this collection of 150 articles has the breadth and depth to be a major contributor toward defining the field of computational materials. In addition, there are 40 commentaries by highly respected researchers, presenting various views that should interest the future generations of the community. Subject Editors: Martin Bazant, MIT; Bruce Boghosian, Tufts University; Richard Catlow, Royal Institution; Long-Qing Chen, Pennsylvania State University; William Curtin, Brown University; Tomas Diaz de la Rubia, Lawrence Livermore National Laboratory; Nicolas Hadjiconstantinou, MIT; Mark F. Horstemeyer, Mississippi State University; Efthimios Kaxiras, Harvard University; L. Mahadevan, Harvard University; Dimitrios Maroudas, University of Massachusetts; Nicola Marzari, MIT; Horia Metiu, University of California Santa Barbara; Gregory C. Rutledge, MIT; David J. Srolovitz, Princeton University; Bernhardt L. Trout, MIT; Dieter Wolf, Argonne National Laboratory.
Download or read book Crystal Growth for Beginners written by Ivan V. Markov and published by World Scientific Publishing Company. This book was released on 2017-01-06 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: The processes of new phase formation and growth are of fundamental importance in numerous rapidly developing scientific fields such as modern materials science, micro- and optoelectronics, and environmental science. Crystal Growth for Beginners combines the depth of information in monographs, with the thorough analysis of review papers, and presents the resulting content at a level understandable by beginners in science. The book covers, in practice, all fundamental questions and aspects of nucleation, crystal growth, and epitaxy. This book is a non-eclectic presentation of this interdisciplinary topic in materials science. The third edition brings existing chapters up to date, and includes new chapters on the growth of nanowires by the vapor-liquid-solid mechanism, as well as illustrated short biographical texts about the scientists who introduced the basic ideas and concepts into the fields of nucleation, crystal growth and epitaxy. All formulae and equations are illustrated by examples that are of technological importance. The book presents not only the fundamentals but also the state of the art in the subject. Crystal Growth for Beginners is a valuable reference for both graduate students and researchers in materials science. The reader is required to possess some basic knowledge of mathematics, physics and thermodynamics.
Download or read book Continuum Scale Simulation of Engineering Materials written by Dierk Raabe and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 885 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book fills a gap by presenting our current knowledge and understanding of continuum-based concepts behind computational methods used for microstructure and process simulation of engineering materials above the atomic scale. The volume provides an excellent overview on the different methods, comparing the different methods in terms of their respective particular weaknesses and advantages. This trains readers to identify appropriate approaches to the new challenges that emerge every day in this exciting domain. Divided into three main parts, the first is a basic overview covering fundamental key methods in the field of continuum scale materials simulation. The second one then goes on to look at applications of these methods to the prediction of microstructures, dealing with explicit simulation examples, while the third part discusses example applications in the field of process simulation. By presenting a spectrum of different computational approaches to materials, the book aims to initiate the development of corresponding virtual laboratories in the industry in which these methods are exploited. As such, it addresses graduates and undergraduates, lecturers, materials scientists and engineers, physicists, biologists, chemists, mathematicians, and mechanical engineers.
Download or read book Handbook of Aluminum written by George E. Totten and published by CRC Press. This book was released on 2003-04-25 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: This reference provides thorough and in-depth coverage of the latest production and processing technologies encountered in the aluminum alloy industry, discussing current analytical methods for aluminum alloy characterization as well as extractive metallurgy, smelting, master alloy formation, and recycling. The Handbook of Aluminum: Volume 2 examin
Download or read book Recrystallization and Related Annealing Phenomena written by Anthony Rollett and published by Newnes. This book was released on 2017-07-24 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recrystallization and Related Annealing Phenomena, Third Edition, fulfills the information needs of materials scientists in both industry and academia. The subjects treated in the book are all active research areas, forming a major part of at least four regular international conference series. This new third edition ensures the reader has access to the latest findings, and is essential reading to those working in the forefront of research in universities and laboratories. For those in industry, the book highlights applications of the research and technology, exploring, in particular, the significant progress made recently in key areas such as deformed state, including deformation to very large strains, the characterization of microstructures by electron backscatter diffraction, the modeling and simulation of annealing, and continuous recrystallization. - Includes over 50% of new, revised, and updated material, highlighting the significant recent literature results in grain growth in non-crystallizing systems, 3D characterization techniques, quantitative modeling techniques, and all-new appendices on texture and measurements - Contains synthesized, detailed coverage from leading authors that bridge the gap between theory and practice - Includes a critical level of synthesis and pedagogy with an authored rather than edited volume
