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Small‐angle neutron scattering of single crystals of aged aluminium–13 at.% magnesium alloy
Author(s) -
Dauger A.,
Fumeron M.,
Guillot J. P.,
Roth M.
Publication year - 1979
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889879012966
Subject(s) - aluminium , materials science , scattering , neutron scattering , neutron diffraction , neutron , alloy , bragg's law , crystallography , small angle neutron scattering , diffraction , small angle scattering , magnesium , molecular physics , condensed matter physics , optics , chemistry , physics , nuclear physics , metallurgy
X‐ray, neutron and electron diffraction experiments have revealed the existence of internally ordered Guinier–Preston zones in Al‐(8 to 15 at.%)Mg alloys; diffuse satellites oriented along (100) directions are observed near Bragg peaks and give rise to modulated contrasts by TEM. A small‐angle neutron scattering experiment has been carried out on single crystals and a model is proposed for the interpretation of the observed pattern. The existence of concentration modulations is related to alignments of spherical GP zones along (100) directions.