Electronic Resource
Copenhagen
:
International Union of Crystallography (IUCr)
Applied crystallography online
8 (1975), S. 535-537
ISSN:
1600-5767
Source:
Crystallography Journals Online : IUCR Backfile Archive 1948-2001
Topics:
Geosciences
,
Physics
Notes:
Neutron small-angle scattering in polycrystalline Al–Mg alloys aged nine months at 0°C has revealed the existence of Guinier–Preston zones in an Al–11.5% Mg alloy, but no G. P. zones in an Al–7% Mg alloy. The evaluation of the data for the 11.5% Mg alloy gives the following parametric values: mean radius of the zones, 19 Å; mean distance between them, 56 Å; Mg concentration in the zones, about 19% in the matrix, about 8%. A qualitative model is proposed for the process of dissolution of the zones by annealing at 100°C.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1107/S002188987501120X
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