3 edition of Relaxation processes in glasses found in the catalog.
|Statement||guest editor, D. E. Day.|
|Contributions||Day, D. E.|
|LC Classifications||TP845 .R64 1973|
|The Physical Object|
|Pagination||viii, 327 p. :|
|Number of Pages||327|
|LC Control Number||73088161|
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The authors describe the electric, magnetic and other relaxational processes in a wide spectrum of materials: liquid crystals, molecular magnets, polymers, high-Tc superconductors and glasses. The book summarizes the phenomenological fundamentals and the experimental methods used.
The task of compiling a book devoted to disordered systems has benefited much from a seminar organized by the W.-E. Heraeus Foundation in Bad Honnef in Aprilwhere we had the opportunity to discuss the project with most of the authors.
Glass Transitions and Relaxation Phenomena in Orientational Glasses and Supercooled Plastic Crystals. Buy Relaxation Processes in Molecular Excited States (Physics and Chemistry of Materials with C:) on FREE SHIPPING on qualified orders. relaxation processes in glasses of the ge–as–s system modulus G, and the temperature T R for Ge 32 As 8 S 60 glass are observed at 30 K higher than those for the.
Specifically, the dynamic processes are the primitive relaxation in the Coupling Model which is the precursor of the Johari-Goldstein β-relaxation, and the caged atoms dynamics characterized by. The internal friction in Ge x As40 − x S60 glasses is investigated in the temperature range K-T g at infralow frequencies (10−3−10−1 Hz).
It is shown that the concentration dependence of the internal friction of these materials changes as a result of the transformation of the dominant kinetic unit in dissipative processes of the relaxation and nonrelaxation by: 2. We review nuclear magnetic resonance (NMR) studies of secondary relaxation processes in glasses.
The main focus is work on molecular glasses, where the secondary relaxation is usually associated with spatially highly restricted by: The task of compiling a book devoted to disordered systems has benefited much from a seminar organized by the W.-E.
Heraeus Foundation in Bad Honnef in Aprilwhere we had the opportunity to discuss the project with most of the authors. Glass Transitions and Relaxation Phenomena in Orientational Glasses and Supercooled Plastic Crystals.
Title: Relaxation in Glasses and Proteins: Authors: Friedrich, J.; KöHler, W. Publication: Dynamical Processes in Condensed Molecular Systems.
Edited by KLAFTER J ET AL. CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): A relaxation process, with the associated phenomenology of sound attenuation and sound velocity dispersion, is found in a simulated harmonic Lennard-Jones glass.
We propose to identify this process with the so called microscopic (or instantaneous) relaxation process observed in real glasses. After a brief description in chapter 2 of the different relaxation processes occurring in liquid glass-formers and their evolution across the glass transition, chapters 3 and 4 encompass the core or the article with a review of the major macroscopic and microscopic approaches employed in recent years to study physical aging in glasses.
Glass: Science and Technology, Volume 3: Viscosity and Relaxation provides notable developments in the field of glasses. This book contains seven chapters that specifically tackle the scientific and engineering aspects of glass viscosity, viscoelasticity, relaxation.
A relaxation process, with the associated phenomenology of sound attenuation and sound velocity dis-persion, is found in a simulated harmonic Lennard-Jones glass. We propose to identify this process with the so-calledmicroscopic (or, instantaneous) relaxation process observed in real glasses and supercooled liquids.
The internal friction in Ge x As40 − x S60 glasses is investigated in the temperature range K-T g at infralow frequencies (10−3−10−1 Hz). It is shown that the concentration dependence of the internal friction of these materials changes as a result of the transformation of the dominant kinetic unit in dissipative processes of the relaxation and nonrelaxation types.
Fast and slow relaxation processes in glasses. β-Relaxation governs protein stability in sugar-glass matrices we find firm evidence that protein stability in these glasses is directly linked to high frequency β relaxation processes of the sugar matrix. Specifically, we observe that when the β relaxation time, τ β, of sugar-glasses is increased with antiplasticizing additives.
Modern Manufacturing Processes is an ideal book for practitioners and researchers in materials and mechanical engineering. Author Bios MUAMMER KOÇ, P H D, is Professor and Program Coordinator of Sustainable Development Division at College of Science and Engineering, Hamid bin Khalifa University, Qatar.
Glasses with photonic properties have great potential and are expected to play a significant role in the next generation of multimedia systems. Fundamentals of glass materials are explained in the first chapter, and the book then proceeds to a discussion of gradient index glass, laser glasses, nonlinear optical glasses and magneto-optical glasses.
Most glass-forming systems are composed of basic units interacting with each other with a nontrivial anharmonic potential. Naturally, relaxation and diffusion in glass formers is a many-body problem.
Results from recent experimental studies are presented to show the effects of many-body relaxation and diffusion manifested on the dynamic properties of glass formers. A universal secondary relaxation process, known as the Johari-Goldstein (J-G) β-relaxation process, appears in glass involves all parts of the molecule and is particularly important in glassy systems because of its very close relationship with the α-relaxation r, the absence of a J-G β-relaxation mode in colloidal glasses raises questions regarding its.
The longitudinal (or spin-lattice) relaxation time T 1 is the decay constant for the recovery of the z component of the nuclear spin magnetization, M z, towards its thermal equilibrium value.In general, =, − [, − ()] − /In specific cases: If M has been tilted into the xy plane, then () = and the recovery is simply =, (− − /)i.e.
the magnetization recovers to 63% of its equilibrium.