Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Grain Boundary Dislocations In Noncubic Crystals I The Model
Download Grain Boundary Dislocations In Noncubic Crystals I The Model full books in PDF, epub, and Kindle. Read online Grain Boundary Dislocations In Noncubic Crystals I The Model ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Grain Boundary Dislocations in Noncubic Crystals. I. The Model by : Gordon A. Bruggeman
Download or read book Grain Boundary Dislocations in Noncubic Crystals. I. The Model written by Gordon A. Bruggeman and published by . This book was released on 1976 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model is developed for the dislocation structure of grain boundaries in noncubic crystals. Important differences are noted between the grain boundary dislocation (GBD) description of boundaries in cubic and noncubic crystals. In both types of crystals the GBD's are present to preserve low-engery patterns characteristic of exact coincidence-site lattices (CSL's). In cubic crystals exact three-dimensional CSL's can be found for rotations about any axis. In noncubic crystals, however, exact three-dimensional CSL's exist only in special circumstances; in general, only near-coincidence site lattices (near-CSL's) can occur in three dimensions. When only near-coincidence is possible an additional component to the GRB array is necessary to compensate for the distortion implicit in near-coincidence. In twist boundaries this additional component alters the spacing of dislocations in the screw grid. Moreover, it is impossible to obtain a twist boundary free of GBD's. The minimum dislocation content occurs at misorientations at which exact coincidence exists in a single plane parallel to the twist axis, i.e., when an exact two-dimensional CSL exists, in which case a single set of screw GBD's parallel to the plane of exact coincidence is present. In tilt boundaries two dislocation arrays may be necessary: an array of pattern-preserving dislocations and an array of misfit dislocations. The function of the former array is to preserve the low-engery coincidence pattern on either side of the GBD; the function of the misfit array is again to compensate for the distortion inherent in near-coincidence.
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1977 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microstructure and Modeling of Edge Dislocations and Grain Boundaries in Polydiacetylenes by : Patricia Michelle Wilson
Download or read book Microstructure and Modeling of Edge Dislocations and Grain Boundaries in Polydiacetylenes written by Patricia Michelle Wilson and published by . This book was released on 1994 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The organization of polymers near defects is a general question of both scientific and technological interest. The relationship between microstructure and properties must involve a discussion of defects. But defects in macromolecular materials are not as clearly defined as in more ordered systems. Schemes to classify defects must rely on the symmetry of the phase, the dimensionality of the defect and the nature of the deformation induced. Several researchers such as Kleman (1983) and Wunderlich (1973) have classified macromolecular defects using these constraints. Defects in polymer systems have not been thoroughly studied because of difficulties in imaging the local regions around defects in organic materials with high energy electron beams. Also, defects are difficult to isolate and study in detail because most polymer systems have a intermediate amount of disorder present in the bulk structure.
Book Synopsis Electron Microscopy of Interfaces in Metals and Alloys by : L.M Clarebrough
Download or read book Electron Microscopy of Interfaces in Metals and Alloys written by L.M Clarebrough and published by Routledge. This book was released on 2021-09-01 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electron Microscopy of Interfaces in Metals and Alloys examines the structure of interfaces in metals and alloys using transmission electron microscopy. The book presents quantitative methods of analysis and reviews the most significant work on interface structure over the last 20 years. It provides the first book description of the methods used for quantitative identification of Burgers vectors of interfacial dislocations, including the geometric analysis of periodicities in interface structure and the comparison of experimental and theoretical electron micrographs. The book explores low- and high-angle grain boundaries and interphase interfaces between neighboring grains, emphasizing interfacial dislocations and rigid-body displacements to the structure and properties of interfaces. It also analyzes the use of two-beam images and diffraction patterns for analysis and studies n-beam lattice imaging. The book includes numerous worked examples of the analysis of the structure of grain boundaries and interphase interfaces, which are particularly useful to those who need to consider the nature of intercrystalline interfaces.
Book Synopsis Modeling of Dislocation - Grain Boundary Interactions in Gradient Crystal Plasticity Theories by : Erdle, Hannes
Download or read book Modeling of Dislocation - Grain Boundary Interactions in Gradient Crystal Plasticity Theories written by Erdle, Hannes and published by KIT Scientific Publishing. This book was released on 2022-07-12 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: A physically-based dislocation theory of plasticity is derived within an extended continuum mechanical context. Thermodynamically consistent flow rules at the grain boundaries are derived. With an analytical solution of a three-phase periodic laminate, dislocation pile-up at grain boundaries and dislocation transmission through the grain boundaries are investigated. For the finite element implementations, numerically efficient approaches are introduced based on accumulated field variables.
Book Synopsis High-Temperature Superconducting Materials Science and Engineering by : Donglu Shi
Download or read book High-Temperature Superconducting Materials Science and Engineering written by Donglu Shi and published by Elsevier. This book was released on 1995-02-20 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the fascinating field of high-temperature superconductivity. Basic concepts–including experimental techniques and theoretical issues–are discussed in a clear, systematic manner. In addition, the most recent research results in the measurements, materials synthesis and processing, and characterization of physical properties of high-temperature superconductors are presented. Researchers and students alike can use this book as a comprehensive introduction not only to superconductivity but also to materials-related research in electromagnetic ceramics. Special features of the book: - presents recent developments in vortex-state properties, defects characterization, and phase equilibrium - introduces basic concepts for experimental techniques at low temperatures and high magnetic fields - provides a valuable reference for materials-related research - discusses potential industrial applications of high-temperature superconductivity - includes novel processing technologies for thin film and bulk materials - suggests areas of research and specific problems whose solution can make high-Tc superconductors a practical reality
Book Synopsis Imperfections in Crystalline Solids by : Wei Cai
Download or read book Imperfections in Crystalline Solids written by Wei Cai and published by Cambridge University Press. This book was released on 2016-09-15 with total page 535 pages. Available in PDF, EPUB and Kindle. Book excerpt: An accessible textbook providing students with a working knowledge of the properties of defects in crystals, in a step-by-step tutorial style.
Book Synopsis Grain Boundary Dislocations in Plane Matching Grain Boundaries by :
Download or read book Grain Boundary Dislocations in Plane Matching Grain Boundaries written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Plane matching (PM) boundaries are defined as boundaries in which a single stack of planes of indices (hkl) in each crystal adjoining the boundary is either parallel, or nearly parallel, and where no other significant lattice matching exists. A search was made (by transmission electron microscopy) for possible intrinsic secondary grain boundary dislocation (GBD) arrays which might be present in such boundaries possessing a variety of deviations from the exact PM condition. (002), (220) and (420) PM boundaries of controlled geometry were prepared in gold thin film bicrystal specimens. Wide ranges of twist and tilt deviations from the exact PM orientation were introduced, and the orientation of the boundary plane was also varied for cases of fixed crystal misorientation. Arrays consisting of parallel GBDs were found in the (002) and (220) boundaries but not in the (420) boundaries. The Burgers vector of the GBDs was parallel to (hkl) with a magnitude given by the (hkl) interplanar spacing. Arrays were found in boundaries with twist deviations as large as 4° and tilt deviations as large as 14° and with a wide range of grain boundary plane orientations. The results suggest that discrete GBDs should be present in a variety of (002), (111) and (220) PM boundaries over a considerable range of misorientation which in certain cases may be as large as 20°. Such boundaries should therefore appear rather frequently in general polycrystalline materials in agreement with the estimates of Warrington and Boon. It is pointed out that the physical basis for the stability of such GBD structures is not understood at present.
Book Synopsis Grain Boundaries by : Louisette Priester
Download or read book Grain Boundaries written by Louisette Priester and published by Springer Science & Business Media. This book was released on 2012-11-28 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: Grain boundaries are a main feature of crystalline materials. They play a key role in determining the properties of materials, especially when grain size decreases and even more so with the current improvements of processing tools and methods that allow us to control various elements in a polycrystal. This book presents the theoretical basis of the study of grain boundaries and aims to open up new lines of research in this area. The treatment is light on mathematical approaches while emphasizing practical examples; the issues they raise are discussed with reference to theories. The general approach of the book has two main goals: to lead the reader from the concept of ‘ideal’ to ‘real’ grain boundaries; to depart from established knowledge and address the opportunities emerging through "grain boundary engineering", the control of morphological and crystallographic features that affect material properties. The book is divided in three parts: I ‘From interganular order to disorder’ deals with the concept of the perfect grain boundary, at equilibrium, and questions the maintenance of its crystalline state. II ‘From the ideal to the real grain boundary’ deals with the concept of the faulted grain boundary. It attempts to reveal the influence of the grain boundary structure on its defects, their formation and their accommodation. III ‘From free to constrained grain boundaries’ is devoted to grain boundary ensembles starting from the triple junction (the elemental configuration) to real grain boundary networks in polycrystals This part covers a new and topical development in the field. It presents for the first time an avenue for researchers working on macroscopic aspects, to approach the scale of description of grain boundaries. Audience: graduate students, researchers and engineers in Materials Science and all those scientists pursuing grain boundary engineering in order to improve materials performance.
Book Synopsis Microstructures and Structural Defects in High-temperature Superconductors by : Zhi-Xiong Cai
Download or read book Microstructures and Structural Defects in High-temperature Superconductors written by Zhi-Xiong Cai and published by World Scientific. This book was released on 1998 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an extensive introduction to the microstructures and structural defects in high-temperature superconductors in a consistent manner. It illustrates the application of modern experimental techniques as well as theoretical modeling tools in the study of these complex materials. The book also gives the reader an overview of the efforts involved in developing large-scale (high-current, high-field) applications for high-T(c) superconductors.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1977 with total page 1150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.
Book Synopsis Crystal Defects and Crystalline Interfaces by : Walter Bollmann
Download or read book Crystal Defects and Crystalline Interfaces written by Walter Bollmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is nonnal for the preface to explain the motivation behind the writing of the book. Since many good books dealing with the general theory of crystal defects already exist, a new book has to be especially justified, and here its main justification lies in its treatment of crystal line interfaces. About 1961, the work of the author, essentially based on the fundamental work of Professor F. C. Frank, started to branch away from the main flow of thought in this field and eventually led to a general geometrical theory which is presented as a whole for the first time in this book. Although nearly all that is presented has already been published in different journals and symposia, it might be difficult for the reader to follow that literature, as a new terminology and new methods of analysis had to be developed. Special emphasis is given to discussion and many diagrams are included in order that a clear view of the basic concepts be obtained. Intennediate summaries try to bring out the main points of the chapters. Instead of specific exercises, general suggestions for them are given. The part up to chapter 9 is considered more or less as introductory, so that the book can be studied without specific knowledge of crystals and crystal defects. The presentation of that part developed out of lectures given by the author at the Swiss Federal Institute of Technology (ETH) in Zurich.
Book Synopsis The Theory of Transformations in Metals and Alloys by : John Christian
Download or read book The Theory of Transformations in Metals and Alloys written by John Christian and published by Newnes. This book was released on 2002-12-10 with total page 1202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work is a classic reference text for metallurgists, material scientists and crystallographers. The first edition was published in 1965. The first part of that edition was revised and re-published in 1975 and again in 1981. The present two-part set represents the eagerly awaited full revision by the author of his seminal work, now published as Parts I and II. Professor Christian was one of the founding fathers of materials science and highly respected worldwide. The new edition of his book deserves a place on the bookshelf of every materials science and engineering department. Suitable thermal and mechanical treatments will produce extensive rearrangements of the atoms in metals and alloys, and corresponding marked variations in physical and chemical properties. This book describes how such changes in the atomic configuration are effected, and discusses the associated kinetic and crystallographic features. It deals with areas such as lattice geometry, point defects, dislocations, stacking faults, grain and interphase boundaries, solid solutions, diffusion, etc. The first part covers the general theory while the second part is concerned with descriptions of specific types of transformations.
Book Synopsis DISLOCATIONS IN CRYSTALS by : W. T. READ, Jr.
Download or read book DISLOCATIONS IN CRYSTALS written by W. T. READ, Jr. and published by . This book was released on 1953 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermo-Mechanical Processing of Metallic Materials by : Bert Verlinden
Download or read book Thermo-Mechanical Processing of Metallic Materials written by Bert Verlinden and published by Elsevier. This book was released on 2007-06-07 with total page 551 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermo-Mechanical Processing of Metallic Materials describes the science and technology behind modern thermo-mechanical processing (TMP), including detailed descriptions of successful examples of its application in the industry. This graduate-level introductory resource aims to fill the gap between two scientific approaches and illustrate their successful linkage by the use of suitable modern case studies. The book is divided into three key sections focusing on the basics of metallic materials processing. The first section covers the microstructural science base of the subject, including the microstructure determined mechanical properties of metals. The second section deals with the current mechanical technology of plastic forming of metals. The concluding section demonstrates the interaction of the first two disciplines in a series of case studies of successful current TMP processing and looks ahead to possible new developments in the field. This text is designed for use by graduate students coming into the field, for a graduate course textbook, and for Materials and Mechanical Engineers working in this area in the industry. * Covers both physical metallurgy and metals processing* Links basic science to real everyday applications* Written by four internationally-known experts in the field
Book Synopsis Dislocations in Solids by : John Price Hirth
Download or read book Dislocations in Solids written by John Price Hirth and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation New models for dislocation structure and motion are presented for nanocrystals, nucleation at grain boundaries, shocked crystals, interphase interfaces, quasicrystals, complex structures with non-planar dislocation cores, and colloidal crystals. A review of experimentally established main features of the magnetoplastic effect with their physical interpretation explains many diverse results of this type. The model has many potential applications for forming processes influenced by magnetic fields.
Book Synopsis Defect Control in Semiconductors by : K. Sumino
Download or read book Defect Control in Semiconductors written by K. Sumino and published by Elsevier. This book was released on 2012-12-02 with total page 817 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defect control in semiconductors is a key technology for realizing the ultimate possibilities of modern electronics. The basis of such control lies in an integrated knowledge of a variety of defect properties. From this viewpoint, the volume discusses defect-related problems in connection with defect control in semiconducting materials, such as silicon, III-V, II-VI compounds, organic semiconductors, heterostructure, etc.The conference brought together scientists in the field of fundamental research and engineers involved in application related to electronic devices in order to promote future research activity in both fields and establish a fundamental knowledge of defect control. The main emphasis of the 254 papers presented in this volume is on the control of the concentration, distribution, structural and electronic states of any types of defects including impurities as well as control of the electrical, optical and other activities of defects. Due to the extensive length of the contents, only the number of papers presented per session is listed below.
