Strain and Dislocation Gradients from Diffraction

Rozaliya Barabash,

ISBN 10: 1908979623 / ISBN 13: 9781908979629

Published by Imperial College Pr, 2014

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Bibliographic Details

• Title: Strain and Dislocation Gradients from Diffraction
• Publisher: Imperial College Pr
• Publication Date: 2014
• Language: English
• ISBN 10: 1908979623
• ISBN 13: 9781908979629
• Binding: Hardcover
• Condition: Brand New

About this title

Synopsis

Scientists and engineers in the physical sciences describe diffraction studies of mesoscale strain gradients and dislocation distributions in crystals, which lie at the heart of emerging research programs around the world. While diffraction techniques to study materials at the nanoscale and macroscale are mature, the mesoscale (0.01-10) remains elusive both for experimental characterization and for theoretical modeling. The topics include X-ray Laue diffraction microscopy in three dimensions at the advanced proton source, three-dimensional X-ray diffraction microscopy, reconstructing two-dimensional and three-dimensional X-ray orientation maps from white-beam Laue, energy-variable X-ray diffraction, and high-pressure studies with micro-diffraction. Distributed in the US by World Scientific. Annotation ©2015 Ringgold, Inc., Portland, OR (protoview.com)

From the Back Cover

This book highlights emerging diffraction studies of strain and dislocation gradients with mesoscale resolution, which is currently a focus of research at laboratories around the world. While ensemble-average diffraction techniques are mature, grain and subgrain level measurements needed to understand real materials are just emerging. In order to understand the diffraction signature of different defects, it is necessary to understand the distortions created by the defects and the corresponding changes in the reciprocal space of the non-ideal crystals.

Starting with a review of defect classifications based on their displacement fields, this book then provides connections between different dislocation arrangements, including geometrically necessary and statistically stored dislocations, and other common defects and the corresponding changes in the reciprocal space and diffraction patterns. Subsequent chapters provide an overview of microdiffraction techniques developed during the last decade to extract information about strain and dislocation gradients. X-ray microdiffraction is a particularly exciting application compared with alternative probes of local crystalline structure, orientation and defect density, because it is inherently non-destructive and penetrating.