Precipitation and dissolution processes in age-hardenable Al alloys — a comparison of positron annihilation and X-ray small-angle scattering investigations I. Al—Zn(x) (x = 3, 4.5, 6, 10, and 18 at%)

1979 ◽  
Vol 55 (2) ◽  
pp. 509-518 ◽  
Author(s):  
G. Dlubek ◽  
O. Kabisch ◽  
O. Brümmer ◽  
H. Löffler
1988 ◽  
Vol 97 ◽  
pp. 227-230 ◽  
Author(s):  
P. Lamparter ◽  
S. Steeb ◽  
D.M. Kroeger ◽  
S. Spooner

1977 ◽  
Vol 10 (1) ◽  
pp. 37-44 ◽  
Author(s):  
C. Cabos ◽  
P. Delord ◽  
J. Rouviere

The structure of micellar solutions is determined from X-ray small-angle scattering measurements on an absolute scale. The most probable structure is chosen by comparison with spherical cylindrical and lamellar models. This method is applied to two-component micelles and it is possible to follow the variation of micellar dimensions when the concentration of each component is varying.


1981 ◽  
Vol 4 (4) ◽  
pp. 225-231 ◽  
Author(s):  
J. Pleštil ◽  
J. Mikeš ◽  
K. Dušek ◽  
Ju. M. Ostanevich ◽  
A. B. Kunchenko

1989 ◽  
Vol 66 (2) ◽  
pp. 625-628 ◽  
Author(s):  
P. Goudeau ◽  
A. Naudon ◽  
G. Bomchil ◽  
R. Herino

1983 ◽  
Vol 16 (1) ◽  
pp. 42-46 ◽  
Author(s):  
O. Glatter ◽  
P. Laggner

The possibilities of obtaining structural information from X-ray small-angle scattering experiments with `white' polychromatic synchrotron radiation using line collimation are investigated by numerical simulation. Theoretical scattering curves of geometrical models were smeared with the appropriate wavelength distributions and slit-length functions, afflicted by statistical noise, and then evaluated by identical methods as normally used for experimental data, as described previously [program ITP; Glatter (1977). J. Appl. Cryst. 10, 415–421]. It is shown that even for a wavelength distribution of 50% half width, the information content is not limited to the parameters derived from the central part of the scattering curves, i.e. the radius of gyration and the zero-angle intensity, but also allows qualitative information on particle shape via the distance distribution function p(r). By a `hinge-bending model' consisting of two cylinders linked together at different angles it is demonstrated that changes in the radius of gyration amounting to less than 5% can be detected and quantified, and the qualitative changes in particle shape be reproduced.


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