Densification Of Rapid Carbothermal Synthesized And Commercial Boron Carbide By Spark Plasma Sintering

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Densification of Rapid Carbothermal Synthesized and Commercial Boron Carbide by Spark Plasma Sintering

Author : Muhammet Fatih Toksoy
Publisher :
ISBN 13 :
Total Pages : 165 pages
Book Rating : 4.:/5 (93 download)

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Book Synopsis Densification of Rapid Carbothermal Synthesized and Commercial Boron Carbide by Spark Plasma Sintering by : Muhammet Fatih Toksoy

Download or read book Densification of Rapid Carbothermal Synthesized and Commercial Boron Carbide by Spark Plasma Sintering written by Muhammet Fatih Toksoy and published by . This book was released on 2014 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron carbide is a structural ceramic material with exceptionally good physical and chemical properties. Thus, boron carbide is proposed for applications in extreme conditions. However synthesizing and sintering of boron carbide is extremely difficult due to its high melting point and strong covalent bonding. Secondary phases, non-uniform composition, complex stoichiometry and powder morphology are problems in most commercial powders as a result of synthesis and powder preparation procedures. Achieving more than 90% TD is difficult due to strong covalent bonding structure and low plasticity of boron carbide. Very high sintering temperatures that approach the melting point are needed for densification. This dissertation seeks to establish an improved understanding on Spark Plasma Sintering (SPS) behaviors of boron carbide and effects of powder properties on final products. Rapid carbothermal reduction (RCR) method was utilized to synthesize boron carbide powder. Submicron boron carbide powders with narrow particle size distribution were synthesized. Free carbon was significantly reduced and near B4C stoichiometry was achieved. Commercial boron carbide powders were also modified by processing in the RCR reactor. Free carbon was reduced to trace amounts; powder morphology and stoichiometry was modified. Commercial, synthesized and modified boron carbide powders were analyzed and characterized using X-Ray diffraction (XRD), electron microscopy, particle size analysis and chemical analyses. Synthesized boron carbide powder had smaller particle size, lower free carbon levels and increased concentration of twinning compared to commercial samples. Standard sintering procedure for boron carbide was established for SPS. Powders were sintered to different temperatures with various dwell times to analyze sintering behavior of boron carbide on SPS without any additives. Synthesized boron carbide powders reached +99% TD at lower temperature and shorter dwell times compared to commercial boron carbide samples. Highly dense materials were produced with limited grain growth. Dense samples were analyzed by XRD and electron microscopy. Knoop hardness tests were applied to dense boron carbide samples. Hardness results showed an improvement with RCR synthesized powders. Results were correlated and powder-sintering-final properties relations were established.

Advances in Ceramic Armor IX, Volume 34, Issue 5

Author : Jerry C. LaSalvia
Publisher : John Wiley & Sons
ISBN 13 : 1118807499
Total Pages : 156 pages
Book Rating : 4.1/5 (188 download)

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Book Synopsis Advances in Ceramic Armor IX, Volume 34, Issue 5 by : Jerry C. LaSalvia

Download or read book Advances in Ceramic Armor IX, Volume 34, Issue 5 written by Jerry C. LaSalvia and published by John Wiley & Sons. This book was released on 2013-11-04 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ceramic Engineering and Science Proceedings Volume 34, Issue 5 - Advances in Ceramic Armor IX A collection of 14 papers from The American Ceramic Society's 37th International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 27-February 1, 2013.This issue includes papers presented in the Armor Ceramics Symposium on topics such as Manufacturing; High-Rate Real-Time Characterization; Microstructural Design; Nondestructive Characterization; and Phenomenology and Mechanics of Ceramics Subjected to Ballistic Impact.

Advances in Ceramic Armor X, Volume 35, Issue 4

Author : Jerry C. LaSalvia
Publisher : John Wiley & Sons
ISBN 13 : 1119040612
Total Pages : 172 pages
Book Rating : 4.1/5 (19 download)

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Book Synopsis Advances in Ceramic Armor X, Volume 35, Issue 4 by : Jerry C. LaSalvia

Download or read book Advances in Ceramic Armor X, Volume 35, Issue 4 written by Jerry C. LaSalvia and published by John Wiley & Sons. This book was released on 2015-01-20 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of 14 papers from the Armor Ceramics symposium held during The American Ceramic Society's 38th International Conference on Advanced Ceramics and Composites, held in Daytona Beach, Florida, January 26-31, 2014.

Carbide, Nitride and Boride Materials Synthesis and Processing

Author : A.W. Weimer
Publisher : Springer Science & Business Media
ISBN 13 : 9400900716
Total Pages : 675 pages
Book Rating : 4.4/5 (9 download)

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Book Synopsis Carbide, Nitride and Boride Materials Synthesis and Processing by : A.W. Weimer

Download or read book Carbide, Nitride and Boride Materials Synthesis and Processing written by A.W. Weimer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 675 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbide, Nitride and Boride Materials Synthesis and Processing is a major reference text addressing methods for the synthesis of non-oxides. Each chapter has been written by an expert practising in the subject area, affiliated with industry, academia or government research, thus providing a broad perspective of information for the reader. The subject matter ranges from materials properties and applications to methods of synthesis including pre- and post-synthesis processing. Although most of the text is concerned with the synthesis of powders, chapters are included for other materials such as whiskers, platelets, fibres and coatings. Carbide, Nitride and Boride Materials Synthesis and Processing is a comprehensive overview of the subject and is suitable for practitioners in the industry as well as those looking for an introduction to the field. It will be of interest to chemical, mechanical and ceramic engineers, materials scientists and chemists in both university and industrial environments working on or with refractory carbides, nitrides and borides.

Evaluating the Effect of Powder Oxygen Content on the Microstructure and Mechanical Properties of Silicon Carbide Densified by Spark Plasma Sintering

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Author : Vincent Alexander DeLucca
Publisher :
ISBN 13 :
Total Pages : 146 pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Evaluating the Effect of Powder Oxygen Content on the Microstructure and Mechanical Properties of Silicon Carbide Densified by Spark Plasma Sintering by : Vincent Alexander DeLucca

Download or read book Evaluating the Effect of Powder Oxygen Content on the Microstructure and Mechanical Properties of Silicon Carbide Densified by Spark Plasma Sintering written by Vincent Alexander DeLucca and published by . This book was released on 2017 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Silicon carbide (SiC) is an important material in industry due to its favorable mechanical, thermal, chemical, and electrical properties. While it has been mainly used as an abrasive material in the past, more modern applications like armor and other structural applications, often require densified ceramic bodies. SiC powders can be densified in a number of ways, but one common method is solid-state sintering, either with or without applied pressure. It is well known that in the presence of oxygen, pure SiC will form a passivating oxide layer of silica (SiO2) on its surface. This poses a problem in sintering as SiO2 can inhibit the densification of solid state sintered SiC. This thesis examines the effects of varying oxygen content levels in silicon carbide powders on the microstructure and mechanical properties of the resulting densified bodies after solid state sintering via the spark plasma sintering (SPS) method. Two commercial SiC powders were obtained, characterized, and treated to introduce a range of different oxygen content levels. These powders were then densified via the spark plasma sintering method using boron carbide and carbon additives to produce dense samples. Three series of samples were made using each powder, one varying the amount of carbon added as a particulate, one varying the amount of carbon added as a liquid resin, and one where the oxygen content of the powder was directly manipulated by HF washing, aging, or heat treating. The dense SiC samples were then characterized to determine the effect of the powder's oxygen content on the microstructure and mechanical properties. The samples were examined using scanning electron microscopy (SEM), electron backscatter diffraction (EBSD), Knoop microhardness testing, and nondestructive ultrasonic evaluation techniques including acoustic spectroscopy and conventional NDE methods. SEM and EBSD analysis revealed that changes in the powder oxygen content can result in a number of microstructural effects. At intermediate oxygen levels, exaggerated grain growth can occur resulting in large plate-like grains, accompanied by a transformation from the 6H to 4H SiC polytype. At higher oxygen levels, densification may be inhibited and at very high oxygen contents formation of an oxygen rich secondary phase can occur. Varying the oxygen content of the SiC powder also significantly affects the mechanical properties of the dense ceramic. Ultrasonic measurements of the elastic properties showed a clear decrease in the elastic moduli as the oxygen content is increased. Knoop microhardness measurements show similar behavior with a reduction in hardness with increased powder oxygen content.

Time-resolved In-situ Analysis of Densification of Nano-boron Carbide Under Superimposed Electric and Thermal Fields with Energy Dispersive X-ray Diffraction

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Author : Hulya Bicer
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (945 download)

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Book Synopsis Time-resolved In-situ Analysis of Densification of Nano-boron Carbide Under Superimposed Electric and Thermal Fields with Energy Dispersive X-ray Diffraction by : Hulya Bicer

Download or read book Time-resolved In-situ Analysis of Densification of Nano-boron Carbide Under Superimposed Electric and Thermal Fields with Energy Dispersive X-ray Diffraction written by Hulya Bicer and published by . This book was released on 2016 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Boron carbide (B4C) is characterized by high melting temperature, high hardness, and low density. Such exceptional properties make B4C is an important covalent solid which is considered the foremost material of choice for high-technology applications. However, low diffusivity caused by the highly directional and stiff character of the covalent bond makes the thermally activated sintering of B4C difficult. Highly covalent bonded ceramics are sintered with hot pressing and spark plasma sintering (SPS) to achieve high densities. However, these two techniques are limited to simple shape components and costly, involving expensive equipment. Pressureless sintering of B4C is desired to avoid expensive die designs and post sintering diamond machining, but very high sintering temperatures close to melting point is necessary to obtain high densities. Recently introduced flash sintering technique is a low voltage two electrode method which enhances the densification of ceramics. The sintering time and temperature can be reduced substantially with flash sintering that provide essential energy savings. In this study, the feasibility of flash sintering of nanoparticulate boron carbide is investigated. Firstly, we analyze the thermal expansion of boron carbide under different constant electric field strength to obtain fundamental data to provide insight into understanding of flash sintering. The electric field strength has an effect on the non-linear thermal expansion coefficients of B4C, and expansion becomes more non-linear with the increase of applied e-field. Secondly, the variety of non-isothermal and isothermal flash sintering experiments have been performed to achieve densification of B4C. By using low voltage, densities up to 95% of the theoretical density have been accomplished at temperatures as low as 711oC and short times on the order of few minutes. The very low process densification temperatures and time clearly indicate that mass transport in this nanoparticulate system under the action of both thermal and electrical fields are of an electrochemical origin. The implementation of ultrahigh energy EDXRD method in flash sintering of B4C enables us to monitor the evolution of nanoparticulate matter at the unit cell scale that is otherwise not possible with conventional Bragg-Brentano-method. EDXRD analysis reveals the transient anomalous unit cell expansion which is consistent with the flash sintering phenomena, and we demonstrate that flash sintering of B4C is possible with help of new coupling mechanism called the galvanomechanical effect. Moreover, we investigate the effect of different flash sintering conditions on densification of B4C.

Processing of Boron Carbide

Author : Namtae Cho
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (713 download)

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Book Synopsis Processing of Boron Carbide by : Namtae Cho

Download or read book Processing of Boron Carbide written by Namtae Cho and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The processing of boron carbide powder including sintering optimization, green body optimization and sintering behavior of nano-sized boron carbide was investigated for the development of complex shaped body armor. Pressureless sintered B4C relative densities as high as 96.7% were obtained by optimizing the soak temperature, and holding at that temperature for the minimum time required to reach terminal density. Although the relative densities of pressureless sintered specimens were lower than that of commercially produced hot-pressed B4C, their (Vickers) hardness values were comparable. For 4.45cm diameter and 1.35cm height disk shaped specimens, pressureless sintered to at least 93.0% relative density, post-hot isostatic pressing resulted in vast increases in relative densities (e.g. 100.0%) and hardness values significantly greater than that of commercially produced hot-pressed B4C. The densification behavior of 20-40nm graphite-coated B4C nano-particles was studied using dilatometry, x-ray diffraction and electron microscopy. The higher than expected sintering onset from a nano-scale powder (15008C) was caused by remnant B2O3 not removed by methanol washing, keeping particles separated until volatilization and the carbon coatings, which imposed particle to particle contact of a substance more refractory than B4C. Solid state sintering (1500-18508C) was followed by an arrest in contraction attributed to formation of eutectic liquid droplets of size more than 10X the original nano-particles. These droplets, induced to form well below known B4C-graphite eutectic temperatures by the high surface energy of nano-particles, are interpreted to have quickly solidified to form a vast number of voids in particle packing, which in turn, impeded continued solid state sintering. Starting at 22008C, a permanent liquid phase formed which facilitated a rapid measured contraction by liquid phase sintering and/or compact slumping.

Boron and Refractory Borides

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Author : G.V. Samsonov
Publisher : Springer Science & Business Media
ISBN 13 : 3642666205
Total Pages : 666 pages
Book Rating : 4.6/5 (426 download)

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Book Synopsis Boron and Refractory Borides by : G.V. Samsonov

Download or read book Boron and Refractory Borides written by G.V. Samsonov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 666 pages. Available in PDF, EPUB and Kindle. Book excerpt: V. I. MATKOVICH During the meeting of the International Symposium on Boron held in October, 1972 in Tbilisi, U.S.S.R., the idea was proposed to assemble a review of boron and refractory borides by the specialists present. The advantages of such a work were immediately apparent. Such diverse applications of borides as in protective armor, nuclear reactors, coat ings, reinforcement, etc. can hardly all be presented in sufficient detail by a single author. On the other hand it was also recognized that with so much specialization, some areas of interest may not be covered. Within the last decade or two a number of areas have been developed in which the use of refractory borides is growing and improvements are being actively explored. Thus, a number of borides have considerable potential as reinforcing material for plastics or light metals, though only boron fibers have been firmly established up to the present. Ap plication of flakes and films for two-dimensional reinforcement appears attractive, although the high cost of materials and development repre sents a considerable barrier. A number of borides have been used to manufacture lightweight protec tive armor. In this area relatively fast changes seem to be taking place as improvements in performance and weight are made. Boron carbide has found considerable use in this application and new developments exploit the light weight of beryllium borides.

Ultra-High Temperature Ceramics

Author : William G. Fahrenholtz
Publisher : John Wiley & Sons
ISBN 13 : 111892441X
Total Pages : 601 pages
Book Rating : 4.1/5 (189 download)

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Book Synopsis Ultra-High Temperature Ceramics by : William G. Fahrenholtz

Download or read book Ultra-High Temperature Ceramics written by William G. Fahrenholtz and published by John Wiley & Sons. This book was released on 2014-10-10 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first comprehensive book to focus on ultra-high temperature ceramic materials in more than 20 years Ultra-High Temperature Ceramics are a family of compounds that display an unusual combination of properties, including extremely high melting temperatures (>3000°C), high hardness, and good chemical stability and strength at high temperatures. Typical UHTC materials are the carbides, nitrides, and borides of transition metals, but the Group IV compounds (Ti, Zr, Hf) plus TaC are generally considered to be the main focus of research due to the superior melting temperatures and stable high-melting temperature oxide that forms in situ. Rather than focusing on the latest scientific results, Ultra-High Temperature Ceramics: Materials for Extreme Environment Applications broadly and critically combines the historical aspects and the state-of-the-art on the processing, densification, properties, and performance of boride and carbide ceramics. In reviewing the historic studies and recent progress in the field, Ultra-High Temperature Ceramics: Materials for Extreme Environment Applications provides: Original reviews of research conducted in the 1960s and 70s Content on electronic structure, synthesis, powder processing, densification, property measurement, and characterization of boride and carbide ceramics. Emphasis on materials for hypersonic aerospace applications such as wing leading edges and propulsion components for vehicles traveling faster than Mach 5 Information on materials used in the extreme environments associated with high speed cutting tools and nuclear power generation Contributions are based on presentations by leading research groups at the conference "Ultra-High Temperature Ceramics: Materials for Extreme Environment Applications II" held May 13-19, 2012 in Hernstein, Austria. Bringing together disparate researchers from academia, government, and industry in a singular forum, the meeting cultivated didactic discussions and efforts between bench researchers, designers and engineers in assaying results in a broader context and moving the technology forward toward near- and long-term use. This book is useful for furnace manufacturers, aerospace manufacturers that may be pursuing hypersonic technology, researchers studying any aspect of boride and carbide ceramics, and practitioners of high-temperature structural ceramics.

MAX Phases and Ultra-high Temperature Ceramics for Extreme Environments

Author : It-Meng Low
Publisher : Engineering Science Reference
ISBN 13 : 9781466640665
Total Pages : 0 pages
Book Rating : 4.6/5 (46 download)

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Book Synopsis MAX Phases and Ultra-high Temperature Ceramics for Extreme Environments by : It-Meng Low

Download or read book MAX Phases and Ultra-high Temperature Ceramics for Extreme Environments written by It-Meng Low and published by Engineering Science Reference. This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This book investigates a new class of ultra-durable ceramic materials, which exhibit characteristics of both ceramics and metals, and will explore recent advances in the manufacturing of ceramic materials that improve their durability and other physical properties, enhancing their overall usability and cost-effectiveness"--

XXII Convegno Nazionale IGF - Acta Fracturae

Author :
Publisher : Gruppo Italiano Frattura
ISBN 13 : 8895940474
Total Pages : 466 pages
Book Rating : 4.8/5 (959 download)

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Book Synopsis XXII Convegno Nazionale IGF - Acta Fracturae by :

Download or read book XXII Convegno Nazionale IGF - Acta Fracturae written by and published by Gruppo Italiano Frattura. This book was released on with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Handbook of Advanced Ceramics and Composites

Author : Yashwant Mahajan
Publisher : Springer
ISBN 13 : 9783030163464
Total Pages : 1527 pages
Book Rating : 4.1/5 (634 download)

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Book Synopsis Handbook of Advanced Ceramics and Composites by : Yashwant Mahajan

Download or read book Handbook of Advanced Ceramics and Composites written by Yashwant Mahajan and published by Springer. This book was released on 2020-11-26 with total page 1527 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook presents an authoritative account of the potential of advanced ceramics and composites in strategic applications, including defense, national security, aerospace, and energy security (especially nuclear energy). It highlights how their unique combination of superior properties such as low density, high strength, high elastic modulus, high hardness, high temperature capability, and excellent chemical and environmental stability are optimized in technologies within these fields. The handbook is organized according to application type. It allows readers to learn about strategies that have been used in different fields and to transfer them to their own. The book addresses a wide variety of ceramics and their composites, including PZT ceramics, carbon nanotubes, aerogels, silica radomes, relaxor ferroelectrics, and many others.

Spark Plasma Sintering: Current Status, New Developments and Challenges

Author : Giacomo Cao
Publisher : Elsevier
ISBN 13 : 0128177446
Total Pages : 334 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Spark Plasma Sintering: Current Status, New Developments and Challenges by : Giacomo Cao

Download or read book Spark Plasma Sintering: Current Status, New Developments and Challenges written by Giacomo Cao and published by Elsevier. This book was released on 2019-06-17 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spark Plasma Sintering: Current Status, New Developments and Challenges: A Review of the Current Trends in SPS looks at the progress made in the field of SPS. It includes a review of the scientific mechanisms, materials synthesis and industry applications for this processing technique. Chapters are written by leading experts in the field, encompassing topics surrounding the densification mechanism and microstructure evolution, the classification of high-performance materials, a review of numerical simulation, discussions of new technology advances, such as HP-SPS, flash sintering and related challenges. This book will be useful for researchers, engineers and students within the materials science and engineering fields. Provides significant information on the most relevant research topics currently being addressed by the SPS community Highlights the application of SPS techniques Reviews critical issues that still need to be overcome when utilizing SPS technology

Field-Assisted Sintering

Author : Eugene A. Olevsky
Publisher : Springer
ISBN 13 : 3319760327
Total Pages : 432 pages
Book Rating : 4.3/5 (197 download)

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Book Synopsis Field-Assisted Sintering by : Eugene A. Olevsky

Download or read book Field-Assisted Sintering written by Eugene A. Olevsky and published by Springer. This book was released on 2018-08-09 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents the first ever scientific monograph including an in-depth analysis of all major field-assisted sintering techniques. Until now, the electromagnetic field-assisted technologies of materials processing were lacking a systematic and generalized description in one fundamental publication; this work promotes the development of generalized concepts and of comparative analyses in this emerging area of materials fabrication. This book describes modern technologies for the powder processing-based fabrication of advanced materials. New approaches for the development of well-tailored and stable structures are thoroughly discussed. Since the potential of traditional thermo-mechanical methods of material treatment is limited due to inadequate control during processing, the book addresses ways to more accurately control the resultant material's structure and properties by an assisting application of electro-magnetic fields. The book describes resistance sintering, high-voltage consolidation, sintering by low-voltage electric pulses (including spark plasma sintering), flash sintering, microwave sintering, induction heating sintering, magnetic pulse compaction and other field-assisted sintering techniques. Includes an in-depth analysis of all major field-assisted sintering techniques; Explains new techniques and approaches for material treatment; Provides detailed descriptions of spark plasma sintering, microwave sintering, high-voltage consolidation, magnetic pulse compaction, and various other approaches when field-assisted treatment is applied.

Spark Plasma Sintering of Materials

Author : Pasquale Cavaliere
Publisher : Springer
ISBN 13 : 303005327X
Total Pages : 781 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis Spark Plasma Sintering of Materials by : Pasquale Cavaliere

Download or read book Spark Plasma Sintering of Materials written by Pasquale Cavaliere and published by Springer. This book was released on 2019-02-18 with total page 781 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes spark plasma sintering (SPS) in depth. It addresses fundamentals and material-specific considerations, techniques, and applications across a broad spectrum of materials. The book highlights methods used to consolidate metallic or ceramic particles in very short times. It highlights the production of complex alloys and metal matrix composites with enhanced mechanical and wear properties. Emphasis is placed on the speed of the sintering processes, uniformity in product microstructure and properties, reduced grain growth, the compaction and sintering of materials in one processing step, various materials processing, and high energy efficiency. Current and potential applications in space science and aeronautics, automation, mechanical engineering, and biomedicine are addressed throughout the book.

Defect and Microstructure Analysis by Diffraction

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Author : Robert L. Snyder
Publisher : International Union of Crystal
ISBN 13 : 9780198501893
Total Pages : 785 pages
Book Rating : 4.5/5 (18 download)

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Book Synopsis Defect and Microstructure Analysis by Diffraction by : Robert L. Snyder

Download or read book Defect and Microstructure Analysis by Diffraction written by Robert L. Snyder and published by International Union of Crystal. This book was released on 1999 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defect and Microstructure Analysis by Diffraction is focused on extracting information on the real structure of materials from their diffraction patterns. The primary features of a powder diffraction pattern are determined by the "idealized" periodic nature of the crystal structure. With theadvent of computer automation the techniques for carrying out qualitative, quantitative and structure analysis based on the primary pattern features rapidly matured. In general, the deviations of a particular specimen, from the ideal or perfect crystal structure, cause diffraction peak profiles tobroaden and sometimes to become asymmetric. Thus, information on the real structure or microstructure of a specimen can be obtained from a careful study of the diffraction line profiles. The evolving techniques for microstructure analysis from diffraction patterns such as micro-strain, crystallitesize, macro-strain and preferred orientation analysis require an ever more detailed understanding of the effects of crystallographic mistakes on peak assymmetry and the effect of the distribution of small crystallites on the tails of diffraction peaks. This book provides a comprehensive analysis ofthe fundamental theory and techniques for microstructure analysis from diffraction patterns and summarizes the current state of the art. This complete survey lays the foundation for the next and last major development in this field: the extraction of the full information in a powder pattern by thesimulation of the full experimental pattern. The goal of this branch of science is to extract all of the information locked in the powder diffraction pattern including: the types and densities of stacking faults, the strain field produced by each, the anisotropic crystallite size and orientation,along with the size and strain distributions of each phase in a specimen. This book provides a complete summary of the developments of the twentieth century and points the way.

Ultra-High Temperature Materials II

Author : Igor L. Shabalin
Publisher : Springer
ISBN 13 : 9402413022
Total Pages : 755 pages
Book Rating : 4.4/5 (24 download)

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Book Synopsis Ultra-High Temperature Materials II by : Igor L. Shabalin

Download or read book Ultra-High Temperature Materials II written by Igor L. Shabalin and published by Springer. This book was released on 2019-04-24 with total page 755 pages. Available in PDF, EPUB and Kindle. Book excerpt: This exhaustive work in three volumes and over 1300 pages provides a thorough treatment of ultra-high temperature materials with melting points over 2500 °C. The first volume focuses on Carbon and Refractory Metals, whilst the second and third are dedicated solely to Refractory compounds and the third to Refractory Alloys and Composites respectively. Topics included are physical (crystallographic, thermodynamic, thermo physical, electrical, optical, physico-mechanical, nuclear) and chemical (solid-state diffusion, interaction with chemical elements and compounds, interaction with gases, vapours and aqueous solutions) properties of the individual physico-chemical phases of carbon (graphite/graphene), refractory metals (W, Re, Os, Ta, Mo, Nb, Ir) and compounds (oxides, nitrides, carbides, borides, silicides) with melting points in this range. It will be of interest to researchers, engineers, postgraduate, graduate and undergraduate students alike. The reader is provided with the full qualitative and quantitative assessment for the materials, which could be applied in various engineering devices and environmental conditions at ultra-high temperatures, on the basis of the latest updates in the field of physics, chemistry, materials science and engineering.