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Structure Property Correlations In Metallic Glass And Amorphous Carbon Films
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Book Synopsis Structure-property Correlations in Metallic Glass and Amorphous Carbon Films by : Sachin Vijay Muley
Download or read book Structure-property Correlations in Metallic Glass and Amorphous Carbon Films written by Sachin Vijay Muley and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Structure-property correlations are invaluable expertise to advance materials' technologies since well-designed materials offer a serious competitive edge, and robust failure analyses complement process improvements. This thesis invokes structure-property interrelationships with a focus on improving materials' performance for industrial adoption of various technologically important systems. In chapter 4, we studied the structure and properties of Zr-Cu-Al thin films synthesized by magnetron sputtering as a function of deposition parameters. In chapter 5, we investigated the structure, mechanical properties and scratch behavior in single-layered and multilayered amorphous carbon thin films made by NCD Technologies' proprietary vapor deposition method. In chapter 6, we presented a case study to identify the failure mode of upper copper weld wheels in an industrial production line which had a much shorter lifetime than the lower electrode. Vapor deposition forms metallic glasses with novel thermodynamic and kinetic stabilities unachievable through conventional routes. In chapter 4, kinetic stability in Zr-Cu-Al metallic glass thin films, indicated by their glass transition temperature, was widely varied by changing deposition rate at constant temperature. The most kinetically stable film's reduced modulus was 22[percent] higher than a glass of the same composition quenched from the liquid by melt spinning, suggesting increased density and improved thermodynamic stability. Fluctuation electron microscopy and angular correlations studies performed using coherent electron nanodiffraction attributed enhanced stability in glasses to increased nanoscale structural order at the medium range length scale, especially of icosahedral nature. Our results indicated that increased nanoscale icosahedral order contributed to resistance of glass to both glass transition and mechanical deformation. In chapter 5, the elastic modulus and hardness in single-layered amorphous carbon films were improved up to as much as 35 and 30 [percent] respectively by varying the applied bias voltage and pulse width. Film structure measured by Raman spectroscopy showed that the maxima in mechanical properties due to bias voltage was correlated to highest sp3 fraction, highest sp2 disorder and overall lowest disorder. Based on single-layer results, multilayers were developed. Nanoindentation and scratch-testing revealed that while multilayering preserved high hardness and improved friction behavior irrespective of the recipe, the scratch volume was strongly correlated with hardness.
Book Synopsis Metallic Glasses by : Behrooz Movahedi
Download or read book Metallic Glasses written by Behrooz Movahedi and published by BoD – Books on Demand. This book was released on 2016-08-17 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic glasses and amorphous materials have attracted much more attention in the last two decades. A noncrystalline solid produced by continuous cooling from the liquid state is known as a glass. From the other point of view, a noncrystalline material, obtained by any other process, for example, vapor deposition or solid-state processing methods such as mechanical alloying, but not directly from the liquid state, is referred to as an amorphous material. At this moment, bulk metallic glasses (BMG) are appearing as a new class of metallic materials with unique physical and mechanical properties for structural and functional usage. Extreme values of strength, fracture toughness, magnetic properties, corrosion resistance, and other properties have been registered in BMG materials.
Book Synopsis Exploring Strategies to Tune the Structure and Properties of Metallic Glasses by : Vrishank Ramprasad Jambur
Download or read book Exploring Strategies to Tune the Structure and Properties of Metallic Glasses written by Vrishank Ramprasad Jambur and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic glasses have garnered significant attention due to their unique properties, offering promising applications in various fields. However, their widespread use has been limited by factors such as a limited composition space with good glass forming ability and poor ductility. In order to optimize their performance, understanding the intricate relationships between their structure, mechanical properties, and processing methods is of the highest importance. This thesis delves into different strategies to fine-tune the structure and properties of metallic glasses through the use of minor alloying and vapor deposition techniques. In the third chapter, we focus on a novel approach to controlling the properties of thin film metallic glasses through ion beam assisted deposition. Our results demonstrate the potential of ion beam-assisted deposition as a viable and promising method for engineering metallic glasses with increased hardness and kinetic stability. We also highlight the key role of surface mobility in allowing glasses to access more stable states through the vapor deposition processes. Expanding the scope of our study, the fourth chapter explores the application of vapor deposition to oxide glasses. We investigate how vapor deposition can be effectively utilized to control the properties of amorphous SiO2 films, providing valuable insights into the structure-mechanical property relationships in this industrially important glass with several anomalous thermo-mechanical behaviors. In the fifth chapter, we investigate the influence of minor alloying on the mechanical properties of metallic glasses. Contrary to conventional approaches that focus solely on topological ordering, our research reveals that chemical bonding plays an equally important role in determining the mechanical behavior of metallic glasses. By examining the impact of various minor alloying elements on mechanical properties, we gain a deeper understanding of the interplay between chemical and topological factors in controlling the mechanical properties of glasses. Continuing the exploration of structure - mechanical property correlations, the last chapter delves into factors determining the plasticity of metallic glasses, where we find that plastic deformation in metallic glasses is influenced by several structural features that span across different length scales. Through these interconnected chapters, this thesis presents a comprehensive understanding of diverse strategies to tune the structure and properties of metallic glasses. This work paves the way for further advancements in the design and development of metallic glasses and other glassy materials with tailored properties, opening up new avenues for exciting applications in the future.
Book Synopsis Bulk Metallic Glasses by : C. Suryanarayana
Download or read book Bulk Metallic Glasses written by C. Suryanarayana and published by CRC Press. This book was released on 2017-11-22 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the fast pace of research in the field, the Second Edition of Bulk Metallic Glasses has been thoroughly updated and remains essential reading on the subject. It incorporates major advances in glass forming ability, corrosion behavior, and mechanical properties. Several of the newly proposed criteria to predict the glass-forming ability of alloys have been discussed. All other areas covered in this book have been updated, with special emphasis on topics where significant advances have occurred. These include processing of hierarchical surface structures and synthesis of nanophase composites using the chemical behavior of bulk metallic glasses and the development of novel bulk metallic glasses with high-strength and high-ductility and superelastic behavior. New topics such as high-entropy bulk metallic glasses, nanoporous alloys, novel nanocrystalline alloys, and soft magnetic glassy alloys with high saturation magnetization have also been discussed. Novel applications, such as metallic glassy screw bolts, surface coatings, hyperthermia glasses, ultra-thin mirrors and pressure sensors, mobile phone casing, and degradable biomedical materials, are described. Authored by the world’s foremost experts on bulk metallic glasses, this new edition endures as an indispensable reference and continues to be a one-stop resource on all aspects of bulk metallic glasses.
Book Synopsis Electronic Structure and Stability of Metallic Glasses by : Jan Tauc
Download or read book Electronic Structure and Stability of Metallic Glasses written by Jan Tauc and published by . This book was released on 1980 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The work was concentrated on deepening our understanding of the properties of electrons in metallic glasses and amorphous thin films and their role in determining the atomic arrangement in these materials. It includes a photoemission study of Nb-Ni glasses, an analysis of an electronic contribution to the free energy of a binary liquid that determines the atomic correlations, EXAFS studies of the structure of Pb-Ge quenched glasses and amorphous thin films, optical studies of amorphous Au-Si system, and a study of the magneto-optic effect in Fe80B20 metallic glass. (Author).
Book Synopsis An Introduction to Metallic Glasses and Amorphous Metals by : Zbigniew H. Stachurski
Download or read book An Introduction to Metallic Glasses and Amorphous Metals written by Zbigniew H. Stachurski and published by Elsevier. This book was released on 2021-07-28 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: An Introduction to Metallic Glasses and Amorphous Metals gives a background on the physics of materials, describing relevant experimental techniques. The book presents the necessary background in physics, thermodynamics, and the mechanics of solids, before moving on to cover elasticity, plasticity, fracture and the anelastic behavior of metallic glasses, relating these properties to chemical composition, atomic arrangement, microstructure, and methods of preparation. In addition, it compares the structure-property relationships specific to metallic glasses with polycrystalline metals and alloys and describes the properties and characteristics of metallic glasses. The general features and behavior of metallic glasses are also analyzed and summarized. The book includes full derivations of theory and equations and presents a compendium of experimental methods used in materials science to characterize and study metallic glasses and amorphous solids. The title is a comprehensive resource for any researcher interested in the materials science of metallic glasses and amorphous materials. Presents the fundamental materials science needed to understand amorphous metals, metallic glasses and alloys Details manufacturing techniques for metallic glasses Gives the mechanical properties of metallic glasses Illustrates concepts with detailed tables and graphs Contains a compendium of experimental methods for use with amorphous metals and metallic glasses
Download or read book Metallic Glasses written by Hu Huang and published by BoD – Books on Demand. This book was released on 2018-09-19 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metallic glasses are very promising engineering and functional materials due to their unique mechanical, chemical, and physical properties, attracting increasing attention from both scientific and industrial communities. However, their practical applications are greatly hindered due to three main problems: dimensional limit, poor tension plasticity, and difficulty in machining and shaping. Therefore, further investigation of these issues is urgently required. This book provides readers with recent achievements and developments in the properties and processing of metallic glasses, including mainly thermoplastic forming of metallic glasses (Chapter 2), atomic-level simulation of mechanical deformation of metallic glasses (Chapter 3), metallic glass matrix composites (Chapter 4), and tribo-electrochemical applications of metallic glasses (Chapters 5 and 6).
Book Synopsis Glasses and Amorphous Materials by : Jerzy Zarzycki
Download or read book Glasses and Amorphous Materials written by Jerzy Zarzycki and published by . This book was released on 1991 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Process Structure and Property Correlations in Sol-gel Derived Lithium Niobate Thin Films by : Vikram Joshi
Download or read book Process Structure and Property Correlations in Sol-gel Derived Lithium Niobate Thin Films written by Vikram Joshi and published by . This book was released on 1993 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Properties of Amorphous Carbon by : S. R. P. Silva
Download or read book Properties of Amorphous Carbon written by S. R. P. Silva and published by IET. This book was released on 2003 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: World experts in amorphous carbon have been drawn together to produce this comprehensive commentary on the current state and future prospects of amorphous carbon, a highly functional material. Amorphous carbon has a wide range of properties that are primarily controlled by the different bond hybridisations possible in such materials. This allows for the growth of an extensive range of thin films that can be tailored for specific applications. Films can range from those with high transparency and which are hard and diamond-like, through to those which are opaque, soft and graphitic-like. Application areas including field emission cathodes, MEMs, electronic devices, medical and optical coatings are now close to market.
Book Synopsis The Structure and Properties of Diamond-like Amorphous Carbon Thin Films by : Joyce Anne Thompson
Download or read book The Structure and Properties of Diamond-like Amorphous Carbon Thin Films written by Joyce Anne Thompson and published by . This book was released on 1980 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Properties and Characterization of Amorphous Carbon Films by : J.J. Pouch
Download or read book Properties and Characterization of Amorphous Carbon Films written by J.J. Pouch and published by Trans Tech Publications Ltd. This book was released on 1991-01-01 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous, hydrogenated carbon (AHC) films can be deposited on various substrates using several techniques, e.g. plasma deposition and ion beam deposition. The resulting films can be hard, wear resistant and transparent.
Book Synopsis Structural Analysis of Metallic Glasses with Computational Homology by : Akihiko Hirata
Download or read book Structural Analysis of Metallic Glasses with Computational Homology written by Akihiko Hirata and published by Springer. This book was released on 2016-04-05 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the application of computational homology for structural analysis of metallic glasses. Metallic glasses, relatively new materials in the field of metals, are the next-generation structural and functional materials owing to their excellent properties. To understand their properties and to develop novel metallic glass materials, it is necessary to uncover their atomic structures which have no periodicity, unlike crystals. Although many experimental and simulation studies have been performed to reveal the structures, it is extremely difficult to perceive a relationship between structures and properties without an appropriate point of view, or language. The purpose here is to show how a new approach using computational homology gives a useful insight into the interpretation of atomic structures. It is noted that computational homology has rapidly developed and is now widely applied for various data analyses. The book begins with a brief basic survey of metallic glasses and computational homology, then goes on to the detailed procedures and interpretation of computational homology analysis for metallic glasses. Understandable and readable information for both materials scientists and mathematicians is also provided.
Book Synopsis Structure-property Correlations in a Complex Low-melting Phosphoborosilicate Glass System for Thick-film Use by : John William Hoffman
Download or read book Structure-property Correlations in a Complex Low-melting Phosphoborosilicate Glass System for Thick-film Use written by John William Hoffman and published by . This book was released on 1998 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics of Amorphous Metals by : Nikolai P. Kovalenko
Download or read book Physics of Amorphous Metals written by Nikolai P. Kovalenko and published by John Wiley & Sons. This book was released on 2008-09-08 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery of bulk metallic glasses has led to a large increase in the industrial importance of amorphous metals, and this is expected to continue. This book is the first to describe the theoretical physics of amorphous metals, including the important theoretical development of the last 20 years. The renowned authors stress the universal aspects in their description of the phonon or magnon low-energy excitations in the amorphous metals, e.g. concerning the remarkable consequences of the properties of these excitations for the thermodynamics at low and intermediate temperatures. Tunneling excitations - another universal aspect of amorphous systems and responsible for many of their properties - is also intensively treated. Although the book is focused on analytical approaches, it also describes the numerical calculation of the atomic structure, the electronic excitations, and the itinerant magnetic properties of amorphous metallic alloys, while considering modern applications. While both theorists and experimentalist interested in amorphous metals will profit from this book, it will also be useful supplementary reading in courses on solid-state physics and material sciences.
Book Synopsis Tetrahedrally Bonded Amorphous Carbon Films I by : Bernd Schultrich
Download or read book Tetrahedrally Bonded Amorphous Carbon Films I written by Bernd Schultrich and published by Springer. This book was released on 2018-03-10 with total page 769 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the status quo of the structure, preparation, properties and applications of tetrahedrally bonded amorphous carbon (ta-C) films and compares them with related film systems. Tetrahedrally bonded amorphous carbon films (ta-C) combine some of the outstanding properties of diamond with the versatility of amorphous materials. The book compares experimental results with the predictions of theoretical analyses, condensing them to practicable rules. It is strictly application oriented, emphasizing the exceptional potential of ta-C for tribological coatings of tools and components.
