Crystal Perfection of Alpha-AI2O3 as a Function of Growth Method

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ISBN 13 :
Total Pages : 42 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Crystal Perfection of Alpha-AI2O3 as a Function of Growth Method by : Charles S. Sahagian

Download or read book Crystal Perfection of Alpha-AI2O3 as a Function of Growth Method written by Charles S. Sahagian and published by . This book was released on 1966 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetic ruby and sapphire crystals grown by flame-fusion and flux methods are described and discussed in terms of growth method and growth techniques. Dislocation densities are given for all samples, and comparisons are made in an attempt to obtain correlation between the growth method used and the resulting lattice defect structure. Data are presented for crystals grown by various methods, namely, Verneuil, flux, hydrothermal, electron-beam zone refining, Czochralski, vapor deposition, and plasma torch methods. Dislocation density evaluation is based on chemical etchpit analysis, which produced average dislocation density values varying from about 1,000,000/sq cm for crystals grown by the plasma torch method to about 1000/sq cm for crystals grown by the electron-beam method. Crystals grown by the other methods mentioned about show dislocation densities lying between these values. A brief description is presented of the chemical etching techniques and apparatus used at AFCRL. (Author).

Crystal Dislocations: Their Impact on Physical Properties of Crystals

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Publisher : MDPI
ISBN 13 : 303897465X
Total Pages : 317 pages
Book Rating : 4.0/5 (389 download)

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Book Synopsis Crystal Dislocations: Their Impact on Physical Properties of Crystals by : Peter Lagerlof

Download or read book Crystal Dislocations: Their Impact on Physical Properties of Crystals written by Peter Lagerlof and published by MDPI. This book was released on 2019-01-09 with total page 317 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Crystal Dislocations: Their Impact on Physical Properties of Crystals" that was published in Crystals

Advances in Gas Turbine Technology

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Publisher : BoD – Books on Demand
ISBN 13 : 9533076119
Total Pages : 542 pages
Book Rating : 4.5/5 (33 download)

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Book Synopsis Advances in Gas Turbine Technology by : Ernesto Benini

Download or read book Advances in Gas Turbine Technology written by Ernesto Benini and published by BoD – Books on Demand. This book was released on 2011-11-04 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas turbine engines will still represent a key technology in the next 20-year energy scenarios, either in stand-alone applications or in combination with other power generation equipment. This book intends in fact to provide an updated picture as well as a perspective vision of some of the major improvements that characterize the gas turbine technology in different applications, from marine and aircraft propulsion to industrial and stationary power generation. Therefore, the target audience for it involves design, analyst, materials and maintenance engineers. Also manufacturers, researchers and scientists will benefit from the timely and accurate information provided in this volume. The book is organized into five main sections including 21 chapters overall: (I) Aero and Marine Gas Turbines, (II) Gas Turbine Systems, (III) Heat Transfer, (IV) Combustion and (V) Materials and Fabrication.

The Growth of Single Crystals

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ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis The Growth of Single Crystals by : Charles S. Sahagian

Download or read book The Growth of Single Crystals written by Charles S. Sahagian and published by . This book was released on 1966 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: Single crystals of over 100 different electronically active materials have been synthesized using a variety of methods, including growth by flame-fusion, flux, melt, gel diffusion, low-temperature solution, vapor, as well as synthesis by ultra-high-pressure techniques. These crystals, including a large number of doped specimens, emphasize oxides, garnets, silicates, ferrites, fluorides, as well as a large variety of other electromagnetic materials. Charts are presented giving summary data on single crystals grown, percentage and kind of dopants, growth methods and apparatus, crystal dimensions and other physical characteristics, primary research interest or use, crystal system, class, space group, and pertinent references. Several of the growth methods and recent Laboratory accomplishments are described. (Author).

25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 22, Issue 3

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Publisher : John Wiley & Sons
ISBN 13 : 0470295147
Total Pages : 746 pages
Book Rating : 4.4/5 (72 download)

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Book Synopsis 25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 22, Issue 3 by : Mrityunjay Singh

Download or read book 25th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - A, Volume 22, Issue 3 written by Mrityunjay Singh and published by John Wiley & Sons. This book was released on 2009-09-28 with total page 746 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is part of the Ceramic Engineering and Science Proceeding (CESP) series. This series contains a collection of papers dealing with issues in both traditional ceramics (i.e., glass, whitewares, refractories, and porcelain enamel) and advanced ceramics. Topics covered in the area of advanced ceramic include bioceramics, nanomaterials, composites, solid oxide fuel cells, mechanical properties and structural design, advanced ceramic coatings, ceramic armor, porous ceramics, and more.

Ceramic Microstructures

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Publisher : Springer Science & Business Media
ISBN 13 : 9780412431401
Total Pages : 618 pages
Book Rating : 4.4/5 (314 download)

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Book Synopsis Ceramic Microstructures by : W.E. Lee

Download or read book Ceramic Microstructures written by W.E. Lee and published by Springer Science & Business Media. This book was released on 1994-10-31 with total page 618 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text deals with the effect of processing on the microstructure and properties of advanced structural and electroceramic materials. It fulfils the need for a well illustrated book explaining the relation between microstructure and properties in structural ceramics, featuring high quality micrographs and characterization techniques.

Proceedings of the Tenth U.S.-Japan Conference on Composite Materials

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Publisher : DEStech Publications, Inc
ISBN 13 : 9781932078138
Total Pages : 1136 pages
Book Rating : 4.0/5 (781 download)

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Book Synopsis Proceedings of the Tenth U.S.-Japan Conference on Composite Materials by : Fu-Kuo Chang

Download or read book Proceedings of the Tenth U.S.-Japan Conference on Composite Materials written by Fu-Kuo Chang and published by DEStech Publications, Inc. This book was released on 2002 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presentations by advanced materials specialists from around the world. Of special interest in this volume are the presentations on application areas such as automotive and civil engineering, nanomaterials, ceramic/metal composites, smart materials, and composite structures.

Ceramics and Composites Processing Methods

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Publisher : John Wiley & Sons
ISBN 13 : 0470553448
Total Pages : 598 pages
Book Rating : 4.4/5 (75 download)

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Book Synopsis Ceramics and Composites Processing Methods by : Narottam P. Bansal

Download or read book Ceramics and Composites Processing Methods written by Narottam P. Bansal and published by John Wiley & Sons. This book was released on 2012-04-17 with total page 598 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines the latest processing and fabrication methods There is increasing interest in the application of advanced ceramic materials in diverse areas such as transportation, energy, environmental protection and remediation, communications, health, and aerospace. This book guides readers through a broad selection of key processing techniques for ceramics and their composites, enabling them to manufacture ceramic products and components with the properties needed for various industrial applications. With chapters contributed by internationally recognized experts in the field of ceramics, the book includes traditional fabrication routes as well as new and emerging approaches in order to meet the increasing demand for more reliable ceramic materials. Ceramics and Composites Processing Methods is divided into three sections: * Densification, covering the fundamentals and practice of sintering, pulsed electric current sintering, and viscous phase silicate processing * Chemical Methods, examining colloidal methods, sol-gel, gel casting, polymer processing, chemical vapor deposition, chemical vapor infiltration, reactive melt infiltration, and combustion synthesis * Physical Methods, including directional solidification, solid free-form fabrication, microwave processing, electrophoretic deposition, and plasma spraying Each chapter focuses on a particular processing method or approach. Collectively, these chapters offer readers comprehensive, state-of-the-science information on the many approaches, techniques, and methods for the processing and fabrication of advanced ceramics and ceramic composites. With its coverage of the latest processing methods, Ceramics and Composites Processing Methods is recommended for researchers and students in ceramics, materials science, structural materials, biomedical engineering, and nanotechnology.

Investigation of Crystal Imperfections by Means of Laser Light Scattering

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Publisher :
ISBN 13 :
Total Pages : 70 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Investigation of Crystal Imperfections by Means of Laser Light Scattering by : Richard Conger Powell

Download or read book Investigation of Crystal Imperfections by Means of Laser Light Scattering written by Richard Conger Powell and published by . This book was released on 1967 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of light scattering as a method for studying imperfections in crystals is discussed. A unique apparatus using a laser as a light source for ultramicroscopy and angular scattering experiments is described. The results obtained utilizing this apparatus for investigations of imperfections in ruby crystals are presented and discussed. These investigations were done as a function of crystal growth direction, annealing, boule morphology, polarization, chromium concentration, gamma-irradiation, and temperature. The results of this work demonstrate the usefulness of this new equipment as a convenient, nondestructive technique for characterizing imperfections in crystals of relatively large size. They also indicate the existence of both randomly distributed scatterers and oriented scattering regions in ruby crystals and show how these scattering centers are altered by changes in the various parameters studied in this investigation. (Author).

Energy Research Abstracts

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Publisher :
ISBN 13 :
Total Pages : 712 pages
Book Rating : 4.:/5 (3 download)

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Book Synopsis Energy Research Abstracts by :

Download or read book Energy Research Abstracts written by and published by . This book was released on 1990 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Additive and Traditionally Manufactured Components

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Publisher : Elsevier
ISBN 13 : 0128219181
Total Pages : 656 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Additive and Traditionally Manufactured Components by : Joshua Pelleg

Download or read book Additive and Traditionally Manufactured Components written by Joshua Pelleg and published by Elsevier. This book was released on 2020-04-30 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: Additive and Traditionally Manufactured Components: A Comparative Analysis of Mechanical Properties looks at the mechanical properties of materials produced by additive manufacturing (AM) and compares them with conventional methods. Since the production of objects by AM techniques can used in a broad array of materials, the alloys presented are the ones most commonly produced by AM - Al alloys, Ti alloys and steel. The book explores the six main types of techniques: Fused Deposition Method (FDM), Powder Bed Fusion (PBF), Inkjet Printing, Stereolithography (SLA), Direct Energy Deposition (DED) and Laminated Object Manufacturing (LOM), and follows with the techniques being utilized for fabrication. Testing of AM fabricated specimens, including tension, compression and hardness is included, along with a comparison of those results to specimens obtained by conventional fabrication methods. Topics covered include static deformation, time dependent deformation (creep), cyclic deformation (fatigue) and fracture in specimens. The book concludes with a review of the mechanical properties of nanoscale specimens obtained by AM.

Advanced Materials and Processes for Gas Turbines

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Publisher : Minerals, Metals, & Materials Society
ISBN 13 :
Total Pages : 338 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Advanced Materials and Processes for Gas Turbines by : Gerhard E. Fuchs

Download or read book Advanced Materials and Processes for Gas Turbines written by Gerhard E. Fuchs and published by Minerals, Metals, & Materials Society. This book was released on 2003 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials issues for the design of industrial gas turbines/Henderson MB., Hannis J., McColvin G. and Ogle G., pp. 3.

Dislocations in Solids

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Publisher : Elsevier
ISBN 13 : 9780444514837
Total Pages : 668 pages
Book Rating : 4.5/5 (148 download)

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Book Synopsis Dislocations in Solids by : Frank R.N. Nabarro

Download or read book Dislocations in Solids written by Frank R.N. Nabarro and published by Elsevier. This book was released on 2004-12 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first volume to appear under the joint editorship of J.P. Hirth and F.R.N. Nabarro. While Volume 11 concentrated on the single topic of dislocations and work hardening, the present volume spreads over the whole range of the study of dislocations from the application by Kléman and his colleagues of homotopy theory to classifying the line and point defects of mesomorphic phases to Chaudhri's account of the experimental observations of dislocations formed around indentations. Chapter 64, by Cai, Bulatove, Chang, Li and Yip, discusses the influence of the structure of the core of a dislocation on its mobility. The power of modern computation allows this topic to be treated from the first principles of electron theory, and with empirical potentials for more complicated problems. Advances in electron microscopy allow these theoretical predictions to be tested. In Chapter 65, Xu analyzes the emission of dislocations from the tip of a crack and its influence on the brittle to ductile transition. Again, the treatment is predominantly theoretical, but it is consistently related to the very practical example of alpha iron. In a dazzling interplay of experiment and abstract mathematics, Kléman, Lavrentovich and Nastishin analyze the line and point structural defects of the many mesomorphic phases which have become known in recent years. Chapter 67, by Coupeau, Girard and Rabier, is essentially experimental. It shows how the various modern techniques of scanning probe microscopy can be used to study dislocations and their interaction with the free surface. Chapter 68, by Mitchell and Heuer, considers the complex dislocations that can form in ceramic crystals on the basis of observations by transmission electron microscopy and presents mechanistic models for the motion of the dislocations in various temperature regimes. While the underlying aim of the study of dislocations in energetic crystals by Armstrong and Elban in Chapter 69 is to understand the role of dislocations in the process of detonation, it has the wider interest of studying dislocations in molecular crystals which are ``elastically soft, plastically hard, and brittle''. Chaudhri in Chapter 70 discusses the role of dislocations in indentation processes, largely on the basis of the elastic analysis by E.H. Yoffe. The special case of nanoindentations is treated only briefly.

High Temperature Aluminides and Intermetallics

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Publisher : Elsevier
ISBN 13 : 1483292576
Total Pages : 759 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis High Temperature Aluminides and Intermetallics by : S.H. Whang

Download or read book High Temperature Aluminides and Intermetallics written by S.H. Whang and published by Elsevier. This book was released on 2013-10-22 with total page 759 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of proceedings is concerned with an increasingly important area, that of intermetallics and high temperature aluminides, which has recently been attracting a great deal of attention. Nearly 150 papers presented at the meeting held in San Diego in September 1991 are reproduced here. They cover a wide range of related topics such as the bonding characteristic and alloying behaviour of TiA1 intermetallic compounds and the cleavage fracture of ordered intermetallic alloys. All the papers have been reviewed according to the standards set by Materials Science and Engineering. This book will be of interest to metallurgists and materials scientists working with composites who are interested in the latest developments in this fast–moving field.

Nanoparticle Technology Handbook

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Publisher : Elsevier
ISBN 13 : 0444641114
Total Pages : 906 pages
Book Rating : 4.4/5 (446 download)

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Book Synopsis Nanoparticle Technology Handbook by : Makio Naito

Download or read book Nanoparticle Technology Handbook written by Makio Naito and published by Elsevier. This book was released on 2018-03-06 with total page 906 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanoparticle Technology Handbook, Third Edition, is an updated and expanded authoritative reference providing both the theory behind nanoparticles and the practical applications of nanotechnology. This third edition features twenty new chapters, providing a reference much broader in scope than the previous edition. Over 140 experts in nanotechnology and/or particle technology contributed to this new edition. The book not only includes the theory behind nanoparticles, but also the practical applications of nanotechnology. It examines future possibilities and new innovations and contains important knowledge on nanoparticle characterization and the effect of nanoparticles on the environment and humans. Nanoparticle technology is a new and revolutionary technology, which is increasingly used in electronic devices and nanomaterials. It handles the preparation, processing, application and characterization of nanoparticles and has become the core of nanotechnology as an extension of conventional fine particle/powder technology. Nanoparticle technology plays an important role in the implementation of nanotechnology in many engineering and industrial fields, including electronic devices, advanced ceramics, new batteries, engineered catalysts, functional paint and ink, drug delivery system, biotechnology, etc., making use of the unique properties of nanoparticles, which are completely different from those of bulk materials. - Introduces all aspects of nanoparticle technology, from the fundamentals to applications - Cover basic information on preparation through to the characterization of nanoparticles in a systematic way - Features information on nanostructures, which play an important role in practical applications - Includes the effects of nanoparticles on human health and the environment - Includes applications of nanoparticles in diverse fields, including applications in new areas, such as electronics cosmetics, etc. - Offers up-to-date information given by specialists in each field

Preferred Orientation in Deformed Metal and Rocks

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Publisher : Elsevier
ISBN 13 : 1483289346
Total Pages : 631 pages
Book Rating : 4.4/5 (832 download)

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Book Synopsis Preferred Orientation in Deformed Metal and Rocks by : Hans Rudolf Wenk

Download or read book Preferred Orientation in Deformed Metal and Rocks written by Hans Rudolf Wenk and published by Elsevier. This book was released on 2013-10-22 with total page 631 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an introduction to the texture analysis of deformed materials and explores methods of determining and interpreting the preferred orientation of crystals in deformed polycrystalline aggregates.**The book reviews: 1) the techniques, procedures, and theoretical basis for the accumulation and analysis of orientation data; 2)the processes by which polycrystals deform and the microstructural mechanisms responsible for the development of the preferred orientation; 3) the textures in specific systems and application of principles to the solution of specific problems.**With a combination of metallurgic and geologic applications, Preferred Orientation in Deformed Metals and Rocks: An Introduction to Modern Texture Analysis will be an important source book for students and researchers in materials science, solid state physics, structural geology, and geophysics.**FROM THE PREFACE: Determination and interpretation of the preferred orientation of crystals in deformed polycrystalline aggregates (in this volume also referred to as texture) has been of longstanding concern to both materials scientists and geologists. A similar theoretical background--such as the dislocation theory of crystal plasticity--has been the basis of understanding flow in metals and rocks; and similar determinative techniques--including microscopy and x-ray diffraction--have been used to study textures and microstructures. Whereas many of the fundamental principles have been established early this century by scientists such as Jeffery, Sachs, Sander, Schmid, Schmidt, and Taylor, only in recent years has knowledge reached a level that provides a quantitative framework which has replaced a largely phenomenological approach. This is expressed in the sudden new emphasis on textural studies, as documented by the large number of recent publications.**This volume contains material to serve as an introduction for those who wish to enter this field as well as reviews for those who are already engaged in advanced research....**The book is divided into three parts. The first (Chapters 2*b17) deals with techniques, procedures, and theoretical bases for the accumulation and analysis of orientation data. The second (Chapters 8*b112) introduces processes by which polycrystals deform and the microstructural mechanisms responsible for the development of the preferred orientation. All those chapters emphasize basic principles and apply to metals as well as to minerals. The third part (Chapters 13*b126) illustrates textures in specific systems and the application of the principles set out in the earlier chapters to the solution of specific problems. Readers of these chapters will quickly become aware that metals have been more exhaustively studied than minerals; but they will also realize that, because of their structural symmetry, metals are in general much simpler than rocks and that the intepretation of metal textures is less involved. An extensive list of relevant references provides access to much of the original literature on textures....

Scientific and Technical Aerospace Reports

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Publisher :
ISBN 13 :
Total Pages : 256 pages
Book Rating : 4.:/5 (3 download)

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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 1991 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: