Download or read book Characterizing Defects In Metals Using PALS written by Jason Calloo and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Machines with moving parts develop wear and tear after some time of operation. Sometimes defects are on the surface, and thus are visible with the naked eye or with a microscope. However, some defects are seated below the surface and are unnoticeable by the human eye or by a microscope. One way of probing materials for these defects is by way of Positron Annihilation Lifetime Spectroscopy (PALS). This sensitive technique was applied to characterize atomic-scale defects in aluminum and copper samples, as well as steel bearing raceways of different levels of usage. Measurements on aluminum and copper were performed before and after annealing near the melting point. Results show that average positron lifetime decreases significantly after annealing. Then steel bearing raceways were subjected to PALS measurements before and after mechanical testing. Results show an average increase in the positron lifetime of tested bearings as compared to the as-fabricated bearing.

Download or read book Characterizing Defects in Steel Aluminum and Copper by Way of Positron Annihilation Lifetime Spectroscopy written by Jason Lavaska Calloo and published by . This book was released on 2011 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Machines with moving parts develop wear and tear after some time of operation. Sometimes defects are on the surface, and thus are visible with the naked eye or with a microscope. However, some defects are seated below the surface and are unnoticeable by the human eye or by a microscope. One way of probing materials for these defects is by way of Positron Annihilation Lifetime Spectroscopy (PALS). This sensitive technique was applied to characterize atomic-scale defects in aluminum and copper samples, as well as steel bearing raceways of different levels of usage. Measurements on aluminum and copper were performed before and after annealing near the melting point. Results show that average positron lifetime decreases significantly after annealing. Then steel bearing raceways were subjected to PALS measurements before and after mechanical testing. Results show an average increase in the positron lifetime of tested bearings as compared to the as-fabricated bearing.

Download or read book Processing and Characterization of Materials written by Snehanshu Pal and published by Springer Nature. This book was released on 2021-09-01 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book includes selected conference proceedings of Conference on Processing and Characterization of Materials (CPCM-2020). The content of the book includes processing of and characterization of materials, sustainable energy materials, defense materials, functionally graded materials, and composites which has significant impact on cutting-edge applications. The book also includes surface engineering, computational methods and materials, waste utilization, and corrosion and environmental degradation of materials. Design, research, and development studies, experimental investigations, theoretical analysis, and fabrication techniques relevant to the application of materials in various assemblies, ranging from individual components to complete structure are presented in the book. The book is useful for graduate students, researchers, and industry professionals alike.

Download or read book Metal Oxide Defects written by Vijay Kumar and published by Elsevier. This book was released on 2022-11-19 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide Defects: Fundamentals, Design, Development and Applications provides a broad perspective on the development of advanced experimental techniques to study defects and their chemical activity and catalytic reactivity in various metal oxides. This book highlights advances in characterization and analytical techniques to achieve better understanding of a wide range of defects, most importantly, state-of-the-art methodologies for controlling defects. The book provides readers with pathways to apply basic principles and interpret the behavior of metal oxides. After reviewing characterization and analytical techniques, the book focuses on the relationship of defects to the properties and performance of metal oxides. Finally, there is a review of the methods to control defects and the applications of defect engineering for the design of metal oxides for applications in optoelectronics, energy, sensing, and more. This book is a key reference for materials scientists and engineers, chemists, and physicists. - Reviews advances in characterization and analytical techniques to understand the behavior of defects in metal oxide materials - Introduces defect engineering applied to the design of metal oxide materials with desirable properties - Discusses applications of defect engineering to enhance the performance of materials for a wide range of applications, with an emphasis on optoelectronics

Download or read book Nondestructive Materials Characterization written by Norbert G. H. Meyendorf and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: With an emphasis on aircraft materials, this book describes techniques for the material characterization to detect and quantify degradation processes such as corrosion and fatigue. It introduces readers to these techniques based on x-ray, ultrasonic, optical and thermal principles and demonstrates the potential of the techniques for a wide variety of applications concerning aircraft materials, especially aluminum and titanium alloys. The advantages and disadvantages of various techniques are evaluated.

Download or read book Defect Characterization of Pyroelectric Materials written by and published by . This book was released on 2002 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two methods for identify point defects applicable to the study of technologically relevant pyroelectric oxide materials have been investigated, namely Positron Annihilation Lifetime Spectroscopy (PALS) and Electron Paramagnetic Resonance (EPR). For this study a PALS spectrometer was constructed. Preliminary PALS and EPR results on powder and ceramic materials are presented. An operational positron annihilation lifetime spectrometer has been constructed and tested. The resolution function width of approximately 205 ps with a count rate of 130 counts S( -1) from a 370 kBq( -1) source was achieved. Two independent analysis algorithms were tested using simulated lifetime spectra. Systematic studies were performed on a series of polycrystalline pure metal samples. This work confirmed the need for accurate source annihilation correction and allowed a methodology to be developed. Further, this procedure allowed the variation in backscatter source contribution with atomic number to be studied. The spectrometer was then used to study two pyroelectric Pb based perovskite oxide ceramic samples, a La doped PZT sample, (Pb, La)(Zr, Ti)O3, and an undoped Pb(Sc(0.5), Ta(0.5))O3 (PST) sample. Fits using maximum entropy method and source corrected fitting using non-linear least square where found to be similar. A second vacancy defect contribution was clearly observed in both samples. Electron paramagnetic resonance measurements were extended from earlier single crystal PbTiO3 work to powder Pb(Zr, Ti)O3 samples. A series of Mn doped samples was studied. The spectrum was found to contain contributions from both Mn(4+) and Mn(2+) charge states.

Download or read book Ultrasonic Materials Characterization written by Harold Berger and published by . This book was released on 1980 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Analytical and Diagnostic Techniques for Semiconductor Materials Devices and Processes written by Bernd O. Kolbesen and published by The Electrochemical Society. This book was released on 2003 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: .".. ALTECH 2003 was Symposium J1 held at the 203rd Meeting of the Electrochemical Society in Paris, France from April 27 to May 2, 2003 ... Symposium M1, Diagnostic Techniques for Semiconductor Materials and Devices, was part of the 202nd Meeting of the Electrochemical Society held in Salt Lake City, Utah, from October 21 to 25, 2002 ..."--p. iii.

Download or read book Research Anthology on Synthesis Characterization and Applications of Nanomaterials written by Management Association, Information Resources and published by IGI Global. This book was released on 2021-03-19 with total page 1917 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of nanotechnologies continues to grow, as nanomaterials have proven their versatility and use in many different fields and industries within the scientific profession. Using nanotechnology, materials can be made lighter, more durable, more reactive, and more efficient leading nanoscale materials to enhance many everyday products and processes. With many different sizes, shapes, and internal structures, the applications are endless. These uses range from pharmaceutics to materials such as cement or cloth, electronics, environmental sustainability, and more. Therefore, there has been a recent surge of research focused on the synthesis and characterizations of these nanomaterials to better understand how they can be used, their applications, and the many different types. The Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials seeks to address not only how nanomaterials are created, used, or characterized, but also to apply this knowledge to the multidimensional industries, fields, and applications of nanomaterials and nanoscience. This includes topics such as both natural and manmade nanomaterials; the size, shape, reactivity, and other essential characteristics of nanomaterials; challenges and potential effects of using nanomaterials; and the advantages of nanomaterials with multidisciplinary uses. This book is ideally designed for researchers, engineers, practitioners, industrialists, educators, strategists, policymakers, scientists, and students working in fields that include materials engineering, engineering science, nanotechnology, biotechnology, microbiology, drug design and delivery, medicine, and more.

Download or read book Physical Methods for Materials Characterisation written by Peter E. J. Flewitt and published by CRC Press. This book was released on 2017-12-06 with total page 796 pages. Available in PDF, EPUB and Kindle. Book excerpt: This completely revised and expanded new edition covers the full range of techniques now available for the investigation of materials structure and accurate quantitative determination of microstructural features within materials. It continues to provide the best introductory resource for understanding the interrelationship between microstructure and physical, mechanical, and chemical properties, as well as selection and application of techniques for both basic and applied studies. In particular, changes have been made to reflect developments in analysis of nanoscale and biological materials.

Download or read book Materials for Energy Conversion Devices written by C C Sorrell and published by Taylor & Francis US. This book was released on 2005-10-30 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the finite capacity and pollution problems of fossil fuels grow more pressing, new sources of more sustainable energy are being developed. Materials for energy conversion devices summarises the key research on new materials which can be used to generate clean and renewable energy or to help manage problems from existing energy sources. The book discusses the range of materials that can be used to harness and convert solar energy in particular, including the properties of oxide materials and their use in producing hydrogen fuel. It covers thermoelectric materials and devices for power generation, ionic conductors and new types of fuel cell. There are also chapters on the use of such materials in the immobilisation of nuclear waste and as electrochemical gas sensors for emission control. With its distinguished editors and international team of contributors, Materials for energy conversion devices is a standard reference for all those researching and developing a new generation of materials and technologies for our energy need. Detailed coverage of solar energy and thermoelectric conversion Comprehensive survey of new developments in this exciting field Edited by leading experts in the field with contributions from an international team of authors

Download or read book Characterization of Defects in Materials written by Richard W. Siegel and published by . This book was released on 1987 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Processing and Characterization of Multicomponent Polymer Systems written by Jose James and published by CRC Press. This book was released on 2019-03-21 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years have witnessed the sheer growth of macromolecular concepts and nanotechnology-based innovations in polymer science. Processing and Characterization of Multicomponent Polymer Systems is a collection of contributions from materials science experts across the globe. The fabrication and characterization of polymeric systems are still important in the study of materials science, and the quality measurements of newly designed polymeric stuffs demand systematic and new characterization protocols. The volume highlights some of the latest innovations and principles of nanostructured polymeric materials and polymer nanocomposites. It is devoted to novel architectures at the nano-level with an emphasis on new synthesis and characterization methods. Organized into several sections, the chapters cover a selection of topics on: Biocomposites and nanocomposites Interpenetrating polymeric networks and nanostructured materials Theoretical protocols for polymers and clusters Special topics in polymer processing and polymer coating. This survey will be an important resource for those involved in the field of polymer materials design for advanced technologies, including scientists, engineers, and budding researchers working in the area of polymer science and nanotechnology.

Download or read book Physicochemical Aspects of Metal Organic Frameworks written by Ali Maleki and published by Springer Nature. This book was released on 2023-03-03 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a both detailed and comprehensive look at metal–organic frameworks (MOFs), a relatively new class of materials with a broad application potential. The beginning chapters focus on introducing the requisite fundamental knowledge of MOFs with respect to their classification, synthesis, functionalization approaches, and various other physiochemical facets such as structural morphology and coordination chemistry. The remaining chapters cover an array of diverse applications, from areas such as energy storage and environmental remediation, to drug delivery, biosensing, and tissue engineering. Featuring chapters dedicated to the design of novel MOF structures, as well as theoretical calculations via density functional theory and machine learning techniques, this book targets a wide readership of both academic and industrial researchers interested in an in-depth understanding of the latest MOF structure–function relationships, as well as their deployment in a wide variety of coordinated engineering applications.

Download or read book Amorphous Nanomaterials written by Lin Guo and published by John Wiley & Sons. This book was released on 2021-06-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: A valuable overview covering important fundamental and applicative aspects of amorphous nanomaterials! Amorphous nanomaterials are very important in non-crystalline solids, which have emerged as a new category of advanced materials. Compared to the crystalline counterpart, amorphous nanomaterials with isotropic nature always exhibit fast ion diffusion, relieved strain, and higher reactivity, enabling such materials to exhibit high performance in mechanics and catalysis, as well as other interesting properties. Amorphous Nanomaterials: Preparation, Characterization, and Applications covers the fundamental concept, synthesis, characterization, properties, and applications of nanoscaled amorphous materials. It starts with the introduction of amorphous materials, then gives a global view of the history, structure, and growth mechanism of amorphous nanomaterials. Subsequently, some powerful techniques to characterize amorphous materials, such as X-ray absorption fine structure spectroscopy, spherical aberration electron microscope, in-situ-Transmission Electron Microscope, Electron Energy Loss Spectroscopy, and some other defect characterization technologies are included. Furthermore, the emerging innovative methods to fabricate well-defined, regularshaped amorphous nanomaterials, including zero-, one-, two-, and three-dimensional amorphous nanomaterials are systematically introduced. The fascinating properties and applications related to amorphous nanomaterials including the applications in electrocatalysis, batteries, supercapacitors, photocatalysis, mechanics, etc., are presented. It will greatly help the researchers to find professional answers related to amorphous materials. Great topic: amorphous nanomaterials are a very large and important field in both academia and industry Comprehensive: in-depth discussion of various important aspects, from both a fundamental and an applied point of view, on the chemistry, physics and technological importance of the amorphous nanomaterials are presented Vitally needed: the understanding of the fundamentals of amorphous nanomaterials is a prerequisite for devising new applications of such materials Highly relevant: amorphous nanomaterials have found specific applications in chemistry, catalysis, physics, sensing, batteries, supercapacitors, and engineering Amorphous Nanomaterials is a vital resource for materials scientists, inorganic and physical chemists, solid state chemists, physicists, catalytic and analytical chemists, as well as organic chemists.

Download or read book Modern Manufacturing Processes written by Kaushik Kumar and published by Woodhead Publishing. This book was released on 2020-05-22 with total page 249 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Manufacturing Processes draws on the latest international research on traditional and non-traditional practices, to provide valuable advice on the digitization and automation of the manufacturing industry. In addition to providing technical details for the correct implementation of the latest tools and practices, the impacts on productivity and design quality are also examined. The thorough classification of manufacturing processes will help readers to decide which technology is most effective for their requirements, and comparisons between modern and traditional methods will clarify the case for upgrading. This comprehensive assessment of technologies will include additive manufacturing, and industry 4.0, as well as hybrid methods where exceptional results have been gained through the use of traditional technology. This collection of work by academics at the cutting edge of manufacturing research will help readers from a range of backgrounds to understand and apply these new technologies. - Explains how the correct implementation of modern manufacturing processes can help a factory gain the characteristics of an industry 4.0 business - Explores what the main technical and business drivers for new manufacturing processes are today - Provides detailed classifications and comparisons of traditional, non-traditional, and hybrid manufacturing processes

Download or read book Solid State Additive Manufacturing written by Amlan Kar and published by CRC Press. This book was released on 2023-12-01 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: The text focuses on discussing the solid-state deformation behavior of materials in additive manufacturing processes. It highlights the process optimization and bonding of different layers during layer-by-layer deposition of different materials in Solid-State. It covers the design, process, and advancement of solid-state additive manufacturing methods. Covers the fundamentals of materials processing, including the stress–strain–temperature correlation in solid-state processing and manufacturing Discusses solid-state additive manufacturing methods, and optimization strategies for the fabrication of additive manufacturing products Showcases the mechanisms associated with improvement in mechanical properties of Solid-State additive manufacturing products Provides a comprehensive discussion on microstructural stability and homogeneity in mechanical properties Presents hybrid solid-state process for fabrication of multilayer components and composite materials Provides a detailed review of laser-based post-processing techniques The text focuses on the Solid-State additive manufacturing techniques for the fabrication of industrially relevant products. It gives in-depth information on the fundamental aspects, hybridization of the processes, fabrication of different materials, improvement in product performance, and Internet of Things enabled manufacturing. The text covers crucial topics, including hybrid Solid-State additive manufacturing, cold spray additive manufacturing, online defect detection of products, and post-processing of additively manufactured components. These subjects are significant in advancing additive manufacturing technology and ensuring the quality and efficiency of the produced components. It will serve as an ideal reference text for senior undergraduate and graduate students, and researchers in fields such as mechanical engineering, aerospace engineering, manufacturing engineering, and production engineering.