Download or read book Pressure Induced Amorphization of Materials written by Surinder M. Sharma and published by . This book was released on 1996 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure induced Amorphization in Negative Thermal Expansion Materials written by Alexander Zlojutro and published by . This book was released on 2004 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure Induced Amorphization of Materials written by Surinder M. Sharma and published by . This book was released on 1996 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure induced Sublattice Amorphization and Materials Synthesis Under High Pressures and Temperatures written by Jeffrey Hùng-Phi Nguyẽ̂n and published by . This book was released on 1996 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure Induced Amorphization and Distinct Amorphous States of Clathrate Hydrates written by Paulo H. B. Brant Carvalho and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pressure induced Amorphization written by Michael Brian Kruger and published by . This book was released on 1992 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book World Scientific Reference Of Amorphous Materials The Structure Properties Modeling And Main Applications In 3 Volumes written by and published by World Scientific. This book was released on 2020-12-28 with total page 1548 pages. Available in PDF, EPUB and Kindle. Book excerpt: Amorphous solids (including glassy and non-crystalline solids) are ubiquitous since the vast majority of solids naturally occurring in our world are amorphous. Although the field is diverse and complex, this three-volume set covers the vast majority of the important concepts needed to understand these materials and their principal practical applications. One volume discusses the most important subset of amorphous insulators, namely oxide glasses; the other two volumes discuss the most important subsets of amorphous semiconductors, namely tetrahedrally coordinated amorphous semiconductors and amorphous and glassy chalcogenides. Together these three volumes provide a comprehensive set of theoretical concepts and practical information needed to become conversant in the field of amorphous materials. They are suitable for advanced graduate students, postdoctoral research associates, and researchers wishing to change fields or sub-fields.The topics covered in these three volumes include (1) concepts for understanding the structures of amorphous materials, (2) techniques to characterize the structural, electronic, and optical properties of amorphous materials, (3) the roles of defects in affecting the electronic and optical properties of amorphous materials, and (4) the concepts for understanding practical devices and other applications of amorphous materials. Applications discussed in these volumes include transistors, solar cells, displays, bolometers, fibers, non-volatile memories, vidicons, photoresists, and optical disks.
Download or read book Pressure induced Amorphous Phases written by E. G. Ponyatovsky and published by . This book was released on 1992 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reversible Switching Between Pressure induced Amorphization and Thermal driven Recrystallization in VO2 B Nanosheets written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Pressure-induced amorphization (PIA) and thermal-driven recrystallization have been observed in many crystalline materials. However, controllable switching between PIA and a metastable phase has not been described yet, due to the challenge to establish feasible switching methods to control the pressure and temperature precisely. Here, we demonstrate a reversible switching between PIA and thermally-driven recrystallization of VO2(B) nanosheets. Comprehensive in situ experiments are performed to establish the precise conditions of the reversible phase transformations, which are normally hindered but occur with stimuli beyond the energy barrier. Spectral evidence and theoretical calculations reveal the pressure-structure relationship and the role of flexible VOx polyhedra in the structural switching process. Anomalous resistivity evolution and the participation of spin in the reversible phase transition are observed for the first time. Lastly, our findings have significant implications for the design of phase switching devices and the exploration of hidden amorphous materials.
Download or read book High Pressure Geochemistry Mineral Physics written by S. Mitra and published by Elsevier. This book was released on 2004-12-11 with total page 1271 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significant achievements have been made at the cross-roads of physics and planetary science. In the second half of the twentieth century, the discipline of planetary sciences has witnessed three major episodes which have revolutionized its approach and content: (i) the plate-tectonic theory, (ii) human landing and discoveries in planetary astronomy and (iii) the extraordinary technical advancement in high P-T studies, which have been abetted by a vast improvement in computational methods. Using these new computational methods, such as first principles including ab initio models, calculations have been made for the electronic structure, bonding, thermal EOS, elasticity, melting, thermal conductivity and diffusivity. In this monograph, the boundaries of the definitions of a petrologist, geochemist, geophysicist or a mineralogist have been willfully eliminated to bring them all under the spectrum of "high-pressure geochemistry" when they deal with any material (quintessentially a chemical assemblage) - terrestrial or extraterrestrial - under the conditions of high-pressure and temperature. Thus, a petrologist using a spectrometer or any instrument for high-pressure studies of a rock or a mineral, or a geochemist using them for chemical synthesis and characterization, is better categorized as a "high-pressure geochemist" rather than any other kind of disciplinarian. The contents of this monograph bring together, under one cover, apparently disparate disciplines like solid-earth geophysics and geochemistry as well as material science and condensed-matter physics to present a thorough overview of high pressure geochemistry. Indeed, such interdisciplinary activities led to the discovery of new phenomena such as high P-T behaviour in metal oxides (e.g. Mott transition), novel transitions such as amorphization, changes in order-disorder in crystals and the anomalous properties of oxide melts.
Download or read book High Pressure Physics written by Surinder M. Sharma and published by Springer Nature. This book was released on with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Pressure Crystallography written by Elena Boldyreva and published by Springer Science & Business Media. This book was released on 2010-08-20 with total page 603 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book is devoted to the theme of crystallographic studies at high pressure. It places emphasis on the phenomena characteristic to the compressed state of matter, as well as experimental and theoretical techniques, used to study these phenomena.
Download or read book Chemical Thermodynamics of Materials written by Svein Stølen and published by John Wiley & Sons. This book was released on 2004-06-25 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive introduction, examining both macroscopic and microscopic aspects of the subject, the book applies the theory of thermodynamics to a broad range of materials; from metals, ceramics and other inorganic materials to geological materials. Focusing on materials rather than the underlying mathematical concepts of the subject, this book will be ideal for the non-specialist requiring an introduction to the energetics and stability of materials. Macroscopic thermodynamic properties are linked to the underlying miscroscopic nature of the materials and trends in important properties are discussed. A unique approach covering both macroscopic and microscopic aspects of the subject Authors have worldwide reputations in this area Fills a gap in the market by featuring a wide range of real up-to-date examples and covering a large amount of materials
Download or read book Materials Under Extreme Conditions written by A. K. Tyagi and published by Elsevier. This book was released on 2017-01-13 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt: Materials Under Extreme Conditions: Recent Trends and Future Prospects analyzes the chemical transformation and decomposition of materials exposed to extreme conditions, such as high temperature, high pressure, hostile chemical environments, high radiation fields, high vacuum, high magnetic and electric fields, wear and abrasion related to chemical bonding, special crystallographic features, and microstructures. The materials covered in this work encompass oxides, non-oxides, alloys and intermetallics, glasses, and carbon-based materials. The book is written for researchers in academia and industry, and technologists in chemical engineering, materials chemistry, chemistry, and condensed matter physics. Describes and analyzes the chemical transformation and decomposition of a wide range of materials exposed to extreme conditions Brings together information currently scattered across the Internet or incoherently dispersed amongst journals and proceedings Presents chapters on phenomena, materials synthesis, and processing, characterization and properties, and applications Written by established researchers in the field
Download or read book Shock Induced Amorphization in Covalently Bonded Solids written by Shiteng Zhao and published by . This book was released on 2017 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pulsed lasers with a power of the order of terawatts, once deposited on a target surface, will launch a stress pulse that propagates into material. Owing to the ultrashort duration of the laser pulses, unprecedented experimental conditions which combine high pressures (and/or shear stresses), strain rates and temperatures can be generated in materials, yielding a yet unexplored regime of study: materials science at extremes. High-power, short-duration, laser-driven, shock compression and recovery experiments were carried out on four covalently bonded materials, namely, silicon (Si), germanium (Ge), boron carbide (B4C) and silicon carbide (SiC). These materials were chosen because of their high Peierls-Nabarro stress and negative Clapeyron slope. The profile of the shock waves was measured by a velocity interferometer system for any reflectors (VISAR). The shock deformation microstructure has been revealed by high resolution transmission electron microscopy and all the materials exhibit shock-induced amorphization. For Si and Ge with [001] orientation, two distinct amorphous regions were identified: (i) a bulk amorphous layer close to the surface and (ii) amorphous bands initially aligned with {111} slip planes. The VISAR measurements show that the estimated thresholds for such a crystalline-to-amorphous transition is estimated to be ~10 GPa (for silicon) and ~4 GPa (for germanium). Further increase of the shock stress leads to the crystallization of amorphous domain into nanocrystals with high density of nano-twins. For polycrystalline boron carbide, only amorphous bands inclined to the direction of shock wave propagation have been observed at a shock stress above ~45 GPa. At lower shock stress, planar faults have been seen below the shocked surface. For [0001] oriented monocrystalline silicon carbide, in addition to the amorphous bands inclined to the shock direction, some amorphous bands perpendicular to the direction of shock wave propagation were observed. We propose that the amorphization is produced by the combined effect of high magnitude hydrostatic and shear stresses under dynamic shock compression. This study reveals that amorphization is a general inelastic deformation mechanisms in covalently bonded elements and compounds subjected to shock compression. Their formation yields a decrease in the overall hydrostatic and deviatoric elastic energy. Shock-induced defects play a very important role in the onset of amorphization. Calculations of the free energy changes with pressure and shear, using the Patel-Cohen methodology, agree with the experimental results. Molecular dynamics simulation corroborates the amorphization, showing that it is initiated by the nucleation and propagation of partial dislocations. The nucleation of amorphization is analyzed by classical nucleation theory.
Download or read book Handbook of Zeolite Science and Technology written by Scott M. Auerbach and published by CRC Press. This book was released on 2003-07-31 with total page 1202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Zeolite Science and Technology offers effective analyses ofsalient cases selected expressly for their relevance to current and prospective research. Presenting the principal theoretical and experimental underpinnings of zeolites, this international effort is at once complete and forward-looking, combining fundamental
Download or read book High Pressure Phenomena written by R.J. Hemley and published by IOS Press. This book was released on 2002-11-29 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: In many respects, the science of materials has only fully utilized two of its three fundamental tools - the variables of temperature and chemical composition. Pressure, the third fundamental variable altering materials, is in many ways the most remarkable, as it spans some 60 orders of magnitude in the universe. High-pressure science has experienced tremendous growth, particularly in the last few years. With recent developments in static and dynamic compression techniques, extreme pressure and temperature conditions can now be produced and carefully controlled over a wide range. Moreover, a new generation of analytical probes, many based on third-generation synchrotron radiation sources, have been developed and can now be applied for accurate determination of the structural, dynamical, and electronic properties of matter under extreme conditions. Finally, developments in computational techniques and advances in fundamental theory tested against bountiful new experimental results are both deepening our understanding of materials as a whole and guiding subsequent experimental work with new predictions. It was for this reason that this course on high-pressure science was held at the International School of Physics "Enrico Fermi" School in July 2001. Though presented in a physics forum, the title “High-Pressure Phenomena” was chosen to reflect the broad scope of the field and the diversity of recent findings. Indeed, the field spans fundamental physics and chemistry, materials science and technology, the geosciences, planetary science and astrophysics, as well as biology. The highly interdisciplinary character of the field was central to the organization of the school, though the sheer breadth of the field meant that many topics could be treated in only a cursory fashion while others were examined more in depth. The aim of the school was to present the state-of-the-art in techniques used in modern high-pressure research, highlighting those topics where applications of these techniques are currently having a major impact.