Characterization Of Structure And Dynamics Of Metallic And Organic Glasses Using Electron Microscopy
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Characterization Of Structure And Dynamics Of Metallic And Organic Glasses Using Electron Microscopy
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Author : Debaditya Chatterjee
language : en
Publisher:
Release Date : 2023
Characterization Of Structure And Dynamics Of Metallic And Organic Glasses Using Electron Microscopy written by Debaditya Chatterjee and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.
Glassy states are commonly observed across metallic, organic, and ceramic materials. They exhibit unique mechanical, thermal, and electronic properties. Metallic glasses are stronger than regular metals while being as pliable as plastics, but their wide-spread technological adoption is hindered by our poor understanding of their atomic ordering. Organic glasses have applications ranging from electronics to pharmaceuticals. Glasses lack long-range order, and their properties are mediated by nano-scale ordering. Experimental characterization of glassy structures is incredibly challenging due to the awesome complexity of their nanostructures and a lack of characterization techniques that can probe the local ordering and structural relaxation processes with nanometer-scale spatial resolution. Characterization techniques based on transmission electron microscopy (TEM) probe the structure and dynamics of such systems with nanometer-scale spatial resolution. Structural studies on metallic and organic glasses using 4-dimensional scanning transmission electron microscopy (4D STEM) reveal varying length scales of ordering in these systems and their impact on physical properties, at unprecedented spatial resolution. Electron correlation microscopy (ECM) analysis on time-resolved in situ thermal annealed TEM data lets us study glassy dynamics and reveals spatially heterogeneous dynamics in the bulk and at the surface of metallic glass nanowires. The techniques developed, and the mechanisms of structural ordering and relaxation dynamics revealed in these investigations, have implications on the synthesis, processing, and characterization of glassy systems with controlled thermal, electronic and mechanical properties, including growth of ultrastable metallic glass phases and molecular glasses with tunable structural anisotropy for organic electronics applications, fabrication of glassy nanostructures by superplastic forming, and control of surface crystallization.
Scanning Transmission Electron Microscopy
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Author : Stephen J. Pennycook
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-03-24
Scanning Transmission Electron Microscopy written by Stephen J. Pennycook and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-24 with Technology & Engineering categories.
Scanning transmission electron microscopy has become a mainstream technique for imaging and analysis at atomic resolution and sensitivity, and the authors of this book are widely credited with bringing the field to its present popularity. Scanning Transmission Electron Microscopy(STEM): Imaging and Analysis will provide a comprehensive explanation of the theory and practice of STEM from introductory to advanced levels, covering the instrument, image formation and scattering theory, and definition and measurement of resolution for both imaging and analysis. The authors will present examples of the use of combined imaging and spectroscopy for solving materials problems in a variety of fields, including condensed matter physics, materials science, catalysis, biology, and nanoscience. Therefore this will be a comprehensive reference for those working in applied fields wishing to use the technique, for graduate students learning microscopy for the first time, and for specialists in other fields of microscopy.
Atomic Scale Characterization Of Materials Using Scanning Transmission Electron Microscopy
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Author : Jeffery Andrew Aguiar
language : en
Publisher:
Release Date : 2012
Atomic Scale Characterization Of Materials Using Scanning Transmission Electron Microscopy written by Jeffery Andrew Aguiar and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Coupling the development of emerging experimental techniques in STEM and EELS with a fundamental understanding of atomic electronic structure afforded by DFT represents the unique approach and intention of this thesis. Scanning transmission electron microscopes equipped with high-angle annular dark field (HAADF) detectors and Gatan image filters (GIF) provide images and spectra, where the image brightness is interpreted as a function of atomic mass and thickness, and elemental specific spectra provide a means for the exploration of electronic and chemical structure of materials at the angstrom size scale. Over the past 20 years, the application of EELS in STEM has enabled more accurate elemental identification and exploration of electronic and chemical structure on angstrom-length scales, and arguably has provided an unprecedented wealth of materials characterization compared to other available techniques. Many materials issues related to specific novel properties that cannot be analyzed using the traditional techniques of the past, however, still remain unanswered. These concepts require a married approach of experiment and theory to fully explain. The intent of this dissertation is the development of improved analysis techniques that derive quantitative atomic scale information in connection with unraveling the origins of materials properties linked to the electronic structure and chemistry of materials.
Ordered And Disordered Cubic Systems Pyrochlore To Fluorite Now And The Horizon
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Author : Gordon James Thorogood
language : en
Publisher: Frontiers Media SA
Release Date : 2022-02-18
Ordered And Disordered Cubic Systems Pyrochlore To Fluorite Now And The Horizon written by Gordon James Thorogood and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-02-18 with Science categories.
World Directory Of Crystallographers
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Author : Allan L. Bednowitz
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-04-17
World Directory Of Crystallographers written by Allan L. Bednowitz and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-17 with Science categories.
A brief historical account of the background leading to the publication of the first four editions of the World Directory of Crystallographers was presented by G. Boom in his preface to the Fourth Edition, published late in 1971. That edition was produced by traditional typesetting methods from compilations of biographical data prepared by national Sub-Editors. The major effort required to produce a directory by manual methods provided the impetus to use computer techniques for the Fifth Edition. The account of the production of the first computer assisted Directory was described by S.C. Abrahams in the preface of the Fifth Edition. Computer composition, which required a machine readable data base, offered several major advantages. The choice of typeface and range of characters was flexible. Corrections and additions to the data base were rapid and, once established, it was hoped updating for future editions would be simple and inexpensive. The data base was put to other Union uses, such as preparation of mailing labels and formulation of lists of crystallographers with specified common fields of interest. The Fifth Edition of the World Directory of Crystallographers was published in June of 1977, the Sixth in May of 1981. The Subject Indexes for the Fifth and Sixth Editions were printed in 1978 and 1981 respectively, both having a limited distribution.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Research In British Universities Polytechnics And Colleges
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Author :
language : en
Publisher:
Release Date : 1984
Research In British Universities Polytechnics And Colleges written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Research categories.
Fundamentals Properties And Applications Of Polymer Nanocomposites
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Author : Joseph H. Koo
language : en
Publisher: Cambridge University Press
Release Date : 2016-10-31
Fundamentals Properties And Applications Of Polymer Nanocomposites written by Joseph H. Koo and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-10-31 with Science categories.
Discusses polymer nanocomposites composed of a family of polymeric materials whose properties are capable of being tailored to meet specific applications.
Metals Abstracts Index
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Author :
language : en
Publisher:
Release Date : 1996
Metals Abstracts Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Metallurgy categories.
Technical Abstract Bulletin
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Author : Defense Documentation Center (U.S.)
language : en
Publisher:
Release Date : 1963
Technical Abstract Bulletin written by Defense Documentation Center (U.S.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1963 with Science categories.