Small angle scattering by dislocations

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U.S. Dept. of Commerce, Technology Administration, National Institute of Standards and Technology , Gaithersburg, MD
Small-angle scattering, Dislocations in m
StatementRobb Thomson, L.E. Levine, G.G. Long
SeriesNISTIR -- 6117
ContributionsLevine, L. E, Long, G. G, National Institute of Standards and Technology (U.S.)
The Physical Object
FormatMicroform
Pagination23 p.
ID Numbers
Open LibraryOL13567543M
OCLC/WorldCa40172831

It is shown that the small-angle scattering of x rays or neutrons by dislocations in a deformed metal, which are partially ordered into wall-like structures, is characterized by several structure factors. Principally there are associated with 1) a single dislocation of dipole, 2) the dislocation configuration in the plane of the wall, Author: R Thomson, Lyle E.

Levine, Gabrielle G. Long. Get this from a library. Small angle scattering Small angle scattering by dislocations book dislocations. [Robb Thomson; L E Levine; G G Long; National Institute of Standards and Technology (U.S.)]. Small Angle X-Ray Scattering by Otto Glatter (Author) ISBN ISBN Why is ISBN important.

ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. The 13 Cited by: Small-angle scattering by dislocations. This book provides a clear, comprehensible and up-to-date description of how Small Angle Scattering (SAS) can help structural biology researchers.

SAS is an efficient technique that offers structural information on how biological macromolecules behave in solution. SAS provides distinct and complementary data for integrative structural biology 3/5(2). Ultra-small-angle X-ray scattering (USAXS) is extremely sensitive to the dislocation arrangements formed during plastic deformation.

Because of the very low contrast of dislocation scattering, combined with its very strong angular dependence and the problems associated with avoiding other, much higher contrast, processes such as accidental Bragg diffraction, attempts at observing dislocation Author: G. Long, L.

Levine, Robb Thomson. Small-angle scattering of X rays and neutrons is a widely used diffraction method for studying the structure of matter. This method of elastic scattering is used in various branches of science and technology, includ­ ing condensed matter physics, molecular biology and biophysics, polymer science, and metallurgy.

It is shown that in spite of the occurrence of double Bragg scattering effects small angle scattering of x‐rays from dislocations in cold‐worked crystals should be observable, provided face‐centered cubic crystals deformed in tension at low temperature are used.

In stage II of the stress‐strain curve the dislocation arrangement is essentially that of piled‐up by:   With the assumption of isotropic elasticity, small-angle scattering will be sensitive only to the edge components of the dislocations. The scattered intensity is dominated by scattering from dislocations that lie perpendicular to the scattering vector, q, and reaches a maximum when q is normal to the slip plane of these by: Small angle scattering by dislocations [microform] / Robb Thomson, L.E.

Levine, G.G. Long; SAS proceedings of the 15th International Small-Angle Scattering Conference: Sydney, Australia, 1 Shōkaku Sanran Dēta Kaiseki Wākushoppu: miseru-kei no kaiseki = Proceedings of the Workshop on Sm. Methods of X-Ray and Neutron Scattering in Polymer Science By R.-J.

Roe, Oxford University Press (). Small-Angle Scattering of X-Rays, A. Guinier and G. Fournet, John Wiley & Sons (). Polymers and Neutron Scattering, J.S. Higgins and H.C. Benoit, Clarendon Press-Oxford (). Small Angle X-Ray Scattering, O.

Glatter and Size: 1MB. With the assumption of isotropic elasticity, small‐angle scattering will be sensitive only to the edge components of the dislocations.

The scattered intensity is dominated by scattering from dislocations that lie perpendicular to the scattering vector, and reaches a maximum when is normal to the slip plane of these dislocations. Small-Angle X-Ray Scattering. Proceedings.

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by Brumberger, H., editor and a great selection of related books, art and collectibles available now at Small Angle scattering (SAS) techniques have been frequently used to provide information about the structure of porous materials as well as the structure of molecular species sorbed within the pore space of these materials (for a recent review see [1]).According to SAS theory, the intensity 1(h) (h is the scattering vector) scattered by a two phase system is related to the.

It is shown that the small-angle scattering of X-rays or neutrons by dislocations within a deformed metal, which are partially ordered into wall-like structures, is characterized by several factors. Principally these are associated with: (i) a single dislocation or dipole; (ii) the dislocation configuration in the plane of the wall; and (iii) the distribution of dislocations Cited by: A new method of X-ray diffraction analysis to evaluate structural changes in rolling element bearing components is demonstrated.

The basics of residual stress measurement by X-ray diffraction based on the sin2ψ method are explained. Microstructural analysis is performed on bearing components after rig testing and after use in field. The results shown in this chapter Author: Oskar Beer. Neutron small-angle scattering from dislocations W.

Schmatz 1 La Rivista del Nuovo Cimento () volume 5, pages – () Cite this articleCited by: Small-angle scattering (SAS) is a scattering technique based on deflection of collimated radiation away from the straight trajectory after it interacts with structures that are much larger than the wavelength of the radiation.

The deflection is small (°) hence the name small-angle. SAS techniques can give information about the size, shape and orientation of.

Small angle neutron scattering of hydrogen segregation at dislocations in palladium M. Maxelon, A. Pundt, W. Pyckhout-Hintzen, and R. Kirchheim Scripta Materialia,Vol Number 5, Page   Books and reviews on small angle scattering. Discussions and criticism on recent SAXS papers. 4 posts • Page 1 of 1.

Message. Author. Vainio Guest Posts: 2 Joined: Location: Hamburg. Books - Glatter &. adshelp[at] The ADS is operated by the Smithsonian Astrophysical Observatory under NASA Cooperative Agreement NNX16AC86A. The plan of this book is as follows: in a first, short chapter we present the phenomenon of small-angle scattering and investigate its physical significance.

The second chapter is devoted to a discussion of the progress realized in the theoretical study of small-angle scattering File Size: 5MB.

Small Angle Scattering and Diffraction. Edited by: Margareth K.

Details Small angle scattering by dislocations PDF

Franco and Fabiano Yokaichiya. ISBNeISBNPDF ISBNPublished Author: Margareth K. Franco, Fabiano Yokaichiya. Small-angle scattering of X-rays (SAXS) and neutrons (SANS) is an established method for the structural characterization of biological objects in a broad size range from individual macromolecules (proteins, nucleic acids, lipids) to large macromolecular complexes.

SAXS/SANS is complementary to the high resolution methods of X-ray crystallography and nuclear. Small angle scattering (SAS) is a low resolution technique, not sensitive to structure on an atomic scale; rather, it depends only on the size, shape, and contrast of inhomogeneities in the range from about nm.

Both X-rays and neutrons are useful for SAS investigations. In materials science, a dislocation or Taylor's dislocation is a linear crystallographic defect or irregularity within a crystal structure which contains an abrupt change in the arrangement of atoms. The movement of dislocations allow atoms to slide over each other at low stress levels and is known as glide or crystalline order is restored on either side of a glide dislocation.

Dislocations are the elementary carriers of plastic flow thus they define material mechanical properties Dislocations allow deformation at much lower stress than in a perfect crystal because slip does not require all bonds across the slip line to break simultaneously, but only small fraction of the bonds are broken at any given time.

T1 - Small-angle neutron scattering study of dislocations in deformed single-crystal copper. AU - Heuser, Brent J. PY - /12/1. Y1 - /12/1. N2 - Small-angle neutron scattering measurements of deformed single-crystal copper have been performed over a wave-vector transfer range of ≤Q≤ nmCited by: Small angle neutron scattering (SANS) measurements on Pd samples containing dislocations with a density of a few cm−2 reveal an additional intensity for a scattering.

Description Small angle scattering by dislocations PDF

In the small angle case, the scattering source is the local dilatation induced by the dislocations on the slip plane, and in the Bragg case, the scattering source is the change in local lattice. Neutron scattering measurements of deformed metals have an important historical significance - one of the first small-angle neutron scattering (SANS) experiments performed was the study of dislocations in copper and aluminium by Atkinson ().

These experiments were.Small-angle X-ray scattering (SAXS) is an analytical technique that measures the intensities of X-rays scattered by a sample as a function of the scattering angle.

Measurements are made at very small angles, typically in the range of deg to 5 deg. From Bragg's law it is understood that with decreasing scattering angle, increasingly larger.A somewhat different approach to determine segre- gation of deuterium to dislocations is small angle neu- tron scattering (SANS), which has been applied to the Pd-D and V-D system by various groups [11, 12, 13, 14].