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Author: Randall M. German
Publisher: Wiley-Interscience
ISBN: 9780471057864
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Although sintering is an essential process in the manufacture ofceramics and certain metals, as well as several other industrialoperations, until now, no single book has treated both thebackground theory and the practical application of this complex andoften delicate procedure. In Sintering Theory and Practice, leadingresearcher and materials engineer Randall M. German presents acomprehensive treatment of this subject that will be of great useto manufacturers and scientists alike. This practical guide to sintering considers the fact that while thebonding process improves strength and other engineering propertiesof the compacted material, inappropriate methods of control maylead to cracking, distortion, and other defects. It provides aworking knowledge of sintering, and shows how to avoid problemswhile accounting for variables such as particle size, maximumtemperature, time at that temperature, and other problems that maycause changes in processing. The book describes the fundamental atomic events that govern thetransformation from particles to solid, covers all forms of thesintering process, and provides a summary of many actual productioncycles. Building from the ground up, it begins with definitions andprogresses to measurement techniques, easing the transition,especially for students, into advanced topics such as single-phasesolid-state sintering, microstructure changes, the complications ofmixed particles, and pressure-assisted sintering. German draws onsome six thousand references to provide a coherent and lucidtreatment of the subject, making scientific principles andpractical applications accessible to both students andprofessionals. In the process, he also points out and avoids thepitfalls found in various competing theories, concepts, andmathematical disputes within the field. A unique opportunity to discover what sintering is all about--bothin theory and in practice What is sintering? We see the end product of this thermal processall around us--in manufactured objects from metals, ceramics,polymers, and many compounds. From a vast professional literature,Sintering Theory and Practice emerges as the only comprehensive,systematic, and self-contained volume on the subject. Covering all aspects of sintering as a processing topic, includingmaterials, processes, theories, and the overall state of the art,the book * Offers numerous examples, illustrations, and tables that detailactual processing cycles, and that stress existing knowledge in thefield * Uses the specifics of various consolidation cycles to illustratethe basics * Leads the reader from the fundamentals to advanced topics,without getting bogged down in various mathematical disputes overtreatments and measurements * Supports the discussion with critically selected references fromthousands of sources * Examines the sintering behavior of a wide variety of engineeredmaterials--metals, alloys, oxide ceramics, composites, carbides,intermetallics, glasses, and polymers * Guides the reader through the sintering processes for severalimportant industrial materials and demonstrates how to controlthese processes effectively and improve present techniques * Provides a helpful reference for specific information onmaterials, processing problems, and concepts For practitioners and researchers in ceramics, powder metallurgy,and other areas, and for students and faculty in materials scienceand engineering, this book provides the know-how and understandingcrucial to many industrial operations, offers many ideas forfurther research, and suggests future applications of thisimportant technology. This book offers an unprecedented opportunity to explore sinteringin both practical and theoretical terms, whether at the lab or inreal-world applications, and to acquire a broad, yet thorough,understanding of this important technology.
Author: Randall M. German
Publisher: Wiley-Interscience
ISBN: 9780471057864
Category : Technology & Engineering
Languages : en
Pages : 0
Get Book Here
Book Description
Although sintering is an essential process in the manufacture ofceramics and certain metals, as well as several other industrialoperations, until now, no single book has treated both thebackground theory and the practical application of this complex andoften delicate procedure. In Sintering Theory and Practice, leadingresearcher and materials engineer Randall M. German presents acomprehensive treatment of this subject that will be of great useto manufacturers and scientists alike. This practical guide to sintering considers the fact that while thebonding process improves strength and other engineering propertiesof the compacted material, inappropriate methods of control maylead to cracking, distortion, and other defects. It provides aworking knowledge of sintering, and shows how to avoid problemswhile accounting for variables such as particle size, maximumtemperature, time at that temperature, and other problems that maycause changes in processing. The book describes the fundamental atomic events that govern thetransformation from particles to solid, covers all forms of thesintering process, and provides a summary of many actual productioncycles. Building from the ground up, it begins with definitions andprogresses to measurement techniques, easing the transition,especially for students, into advanced topics such as single-phasesolid-state sintering, microstructure changes, the complications ofmixed particles, and pressure-assisted sintering. German draws onsome six thousand references to provide a coherent and lucidtreatment of the subject, making scientific principles andpractical applications accessible to both students andprofessionals. In the process, he also points out and avoids thepitfalls found in various competing theories, concepts, andmathematical disputes within the field. A unique opportunity to discover what sintering is all about--bothin theory and in practice What is sintering? We see the end product of this thermal processall around us--in manufactured objects from metals, ceramics,polymers, and many compounds. From a vast professional literature,Sintering Theory and Practice emerges as the only comprehensive,systematic, and self-contained volume on the subject. Covering all aspects of sintering as a processing topic, includingmaterials, processes, theories, and the overall state of the art,the book * Offers numerous examples, illustrations, and tables that detailactual processing cycles, and that stress existing knowledge in thefield * Uses the specifics of various consolidation cycles to illustratethe basics * Leads the reader from the fundamentals to advanced topics,without getting bogged down in various mathematical disputes overtreatments and measurements * Supports the discussion with critically selected references fromthousands of sources * Examines the sintering behavior of a wide variety of engineeredmaterials--metals, alloys, oxide ceramics, composites, carbides,intermetallics, glasses, and polymers * Guides the reader through the sintering processes for severalimportant industrial materials and demonstrates how to controlthese processes effectively and improve present techniques * Provides a helpful reference for specific information onmaterials, processing problems, and concepts For practitioners and researchers in ceramics, powder metallurgy,and other areas, and for students and faculty in materials scienceand engineering, this book provides the know-how and understandingcrucial to many industrial operations, offers many ideas forfurther research, and suggests future applications of thisimportant technology. This book offers an unprecedented opportunity to explore sinteringin both practical and theoretical terms, whether at the lab or inreal-world applications, and to acquire a broad, yet thorough,understanding of this important technology.
Author: Randall German
Publisher: Butterworth-Heinemann
ISBN: 0124016774
Category : Technology & Engineering
Languages : en
Pages : 549
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Book Description
As sintering applications march toward a $30 billion global business, the models for sintering have progressed, but generally follow behind observation. Documentation of the steps needed to build to a quantitative and predictive theory are often missed. Sintering: From Empirical Observations to Scientific Principles partitions sintering applications and observations to show critical turning points required to establish modern sintering as a predictive science. This book, written by the most cited author in his field, is laced with people, organizations, critical steps, and important formulations in a mixture of history, personalities, and applications. Exploring how insights in seemingly unrelated fields sparked progress, it is also a teaching tool to show where there is success, where there are problems, and how to organize teams to leapfrog to new applications or plateaus of use. Randall German's Sintering: From Empirical Observations to Scientific Principles is a platform for directly addressing the critical control parameters in these new research and development efforts. - Shows how the theories and understanding of sintering were developed and improved over time, and how different products were developed, ultimately leading to important knowledge and lessons for solving real sintering problems - Covers all the necessary infrastructure of sintering theory and practice, such as atomic theory, surface energy, microstructure, and measurement and observation tools - Introduces the history and development of such early sintered products as porcelain, tungsten lamp filaments, bronze bearings, steel automotive components, platinum crucibles and more
Author: Mohamed N. Rahaman
Publisher: CRC Press
ISBN: 142000705X
Category : Technology & Engineering
Languages : en
Pages : 388
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Book Description
Sintering of Ceramics provides the only comprehensive treatment of the theories and principles of sintering and their application to the production of advanced ceramics with the required target microstructure. Stemming from the author's bestselling text, Ceramic Processing and Sintering, this book includes additional material selected
Author: Suk-Joong L. Kang
Publisher: Elsevier
ISBN: 0080493076
Category : Technology & Engineering
Languages : en
Pages : 279
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Book Description
Sintering is the process of forming materials and components from a powder under the action of thermal energy. It is a key materials science subject: most ceramic materials and many specialist metal powder products for use in key industries such as electronics, automotive and aerospace are formed this way. Written by one of the leading experts in the field, this book offers an unrivalled introduction to sintering and sintering processes for students of materials science and engineering, and practicing engineers in industry. The book is unique in providing a complete grounding in the principles of sintering and equal coverage of the three key sintering processes: densification, grain growth and microstructure. Students and professional engineers alike will be attracted by the emphasis on developing a detailed understanding of the theory and practical processes of sintering, the balanced coverage of ceramic and metal sintering, and the accompanying examination questions with selected solutions. - Delivering unrivalled depth of coverage on the basis of sintering, science, including thermodynamics and polycrystalline microstructure. - Unique in its balanced coverage of the three key sintering elements - densification, grain growth and microstructure. - A key reference for students and engineers in materials science and engineering, accompanied by examination questions and selected solutions.
Author: Randall M. German
Publisher: John Wiley & Sons
ISBN: 0470368721
Category : Technology & Engineering
Languages : en
Pages : 455
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Book Description
The only handbook of mathematical relations with a focus on particulate materials processing The National Science Foundation estimates that over 35% of materials-related funding is now directed toward modeling. In part, this reflects the increased knowledge and the high cost of experimental work. However, currently there is no organized reference book to help the particulate materials community with sorting out various relations. This book fills that important need, providing readers with a quick-reference handbook for easy consultation. This one-of-a-kind handbook gives readers the relevant mathematical relations needed to model behavior, generate computer simulations, analyze experiment data, and quantify physical and chemical phenomena commonly found in particulate materials processing. It goes beyond the traditional barriers of only one material class by covering the major areas in ceramics, cemented carbides, powder metallurgy, and particulate materials. In many cases, the governing equations are the same but the terms are material-specific. To rise above these differences, the authors have assembled the basic mathematics around the following topical structure: Powder technology relations, such as those encountered in atomization, milling, powder production, powder characterization, mixing, particle packing, and powder testing Powder processing, such as uniaxial compaction, injection molding, slurry and paste shaping techniques, polymer pyrolysis, sintering, hot isostatic pressing, and forging, with accompanying relations associated with microstructure development and microstructure coarsening Finishing operations, such as surface treatments, heat treatments, microstructure analysis, material testing, data analysis, and structure-property relations Handbook of Mathematical Relations in Particulate Materials Processing is suited for quick reference with stand-alone definitions, making it the perfect complement to existing resources used by academic researchers, corporate product and process developers, and various scientists, engineers, and technicians working in materials processing.
Author: Randall M. German
Publisher: Wiley-Interscience
ISBN:
Category : Science
Languages : en
Pages : 528
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Book Description
A comprehensive guide to current practices Powder metallurgy processes increasingly dominate the production of iron and steel components for a variety of machines, appliances, automobiles, and tools. These processes yield high-quality precision components, recycle scrap metals into useful powders, and consume less energy than traditional manufacturing methods. Despite the tremendous growth in this area, however, until now there has been no guide on practical issues in the field. Powder Metallurgy of Iron and Steel fills the need for a fundamental, nonmathematical treatment of this technology. Focusing on the most useful applications and the advantages of different production techniques, this systematic, self-contained volume provides serious help in tackling production problems on the factory floor. It covers the gamut of practical topics, from injection molding and compaction processes to sintering, full-density processes, heat treatments, finishing operations, and the mechanical properties of many products, including die-compacted steels. Written by a leading authority and designer of educational programs for the industry, Powder Metallurgy of Iron and Steel: Emphasizes current practices and real engineering materials in everyday manufacturing processes Keeps the mathematics simple, boxing the calculations outside the main body of text Includes research articles and trade information from a variety of sources Features numerous pictures and flow diagrams Includes an appendix with an extensive list of definitions This important tutorial for an expanding work force is accessible to scientists and engineers alike, as well as technicians, production supervisors, designers, consultants, and marketing personnel. It is also an excellent textbook for undergraduate and industrial courses.
Author: V. A. Invenson
Publisher: Springer Science & Business Media
ISBN: 1475701063
Category : Technology & Engineering
Languages : en
Pages : 241
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Book Description
Sintering of powder metal compacts is one of the basic oper ations in powder metallurgy. The useful properties of a machine part are obtained after considerable densification of the sintered material. Although the mechanical properties of the part depend on other structural factors besides porosity, porosity is the main factor. Usually, the practical problem in sintering is to obtain a part with the desired or permissible porosity. Thus, knowledge of the laws governing densification and its final result is neces sary to control this process in the production of powder metal parts. The laws governing densification are also important for a more exact physical theory of sintering, which is still in the initial stages of its development. Such processes as the change in the density of lattice defects and the flow of crystalline substances during sintering have not yet received a complete physical inter pretation. Analysis of the laws of sintering may provide addition al material for more complete phenomenological characteristics of these processes that will be useful for further development of theoretical concepts of the flow of imperfect crystals under small loads. Although a substantial amount of experimental material has been accumulated, generalizations are still difficult.
Author: C. Jeffrey Brinker
Publisher: Academic Press
ISBN: 0080571034
Category : Technology & Engineering
Languages : en
Pages : 925
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Book Description
Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing presents the physical and chemical principles of the sol-gel process. The book emphasizes the science behind sol-gel processing with a chapter devoted to applications. The first chapter introduces basic terminology, provides a brief historical sketch, and identifies some excellent texts for background reading. Chapters 2 and 3 discuss the mechanisms of hydrolysis and condensation for nonsilicate and silicate systems. Chapter 4 deals with stabilization and gelation of sols. Chapter 5 reviews theories of gelation and examines the predicted and observed changes in the properties of a sol in the vicinity of the gel point. Chapter 6 describes the changes in structure and properties that occur during aging of a gel in its pore liquor (or some other liquid). The discussion of drying is divided into two parts, with the theory concentrated in Chapter 7 and the phenomenology in Chapter 8. The structure of dried gels is explored in Chapter 9. Chapter 10 shows the possibility of using the gel as a substrate for chemical reactions or of modifying the bulk composition of the resulting ceramic by performing a surface reaction (such as nitridation) on the gel. Chapter 11 reviews the theory and practice of sintering, describing the mechanisms that govern densification of amorphous and crystalline materials, and showing the advantages of avoiding crystallization before sintering is complete. The properties of gel-derived and conventional ceramics are discussed in Chapter 12. The preparation of films is such an important aspect of sol-gel technology that the fundamentals of film formation are treated at length in Chapter 13. Films and other applications are briefly reviewed in Chapter 14. Materials scientists and researchers in the field of sol-gel processing will find the book invaluable.
Author: Mohamed N. Rahaman
Publisher: CRC Press
ISBN: 1351990578
Category : Technology & Engineering
Languages : en
Pages : 1144
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Book Description
As the field's premiere source, this reference is extensively revised and expanded to collect hard-to-find applications, equations, derivations, and examples illustrating the latest developments in ceramic processing technology. This book is concerned primarily with the processing of polycrystalline ceramics and focuses on the widespread fabrication of ceramics by the firing of consolidated powders forms. A brief treatment of sol-gel processing is also included. Ceramic Processing and Sintering, Second Edition provides clear and intensive discussions on colloidal and sol-gel processing, sintering of ceramics, and kinetic processes in materials. From powder synthesis and consolidation to sintering and densification behavior, this latest edition emphasizes the impact of each processing procedure on ceramic properties. The second edition also contains new and extended discussions on colloid stability, polymer growth and gelation, additives in ceramic forming, diffusion and defect strucutre, normal and abnormal grain growth, microwave sintering, Rayleigh instability effects, and Ostwald ripening. Illustrating the interconnectedness between the various steps in the overall fabrication route, Ceramic Processing and Sintering, Second Edition approaches the fundamental issues of each process and show how they are applied to the practical fabrication of ceramics.
Author: Randall M. German
Publisher: CRC Press
ISBN: 1000148602
Category : Technology & Engineering
Languages : en
Pages : 552
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Book Description
Based on the sintering conference held at the Pennsylvania State University, USA, this text presents advances in the application of sintering to the most important industrial materials. It offers results on both solid-state and microphase sintering as well as microstructure evolution, and introduces new applications, processes, materials and solutions to technical problems.
