In situ measurements on stability of long-period stacking-ordered structures in Mg85Y9Zn6 alloys during heating examined by multicolor synchrotron radiation small-angle scattering

2014 ◽  
Vol 75 ◽  
pp. 66-69 ◽  
Author(s):  
Hiroshi Okuda ◽  
Toshiki Horiuchi ◽  
Michiaki Yamasaki ◽  
Yoshihito Kawamura ◽  
Shinji Kohara
Keyword(s):  
Synchrotron Radiation ◽  
Small Angle ◽  
Small Angle Scattering ◽  
In Situ Measurements ◽  
Ordered Structures ◽  
Long Period ◽  
Angle Scattering

scholarly journals Evolution of long-period stacking ordered structures on annealing as-cast Mg85Y9Zn6 alloy ingot observed by synchrotron radiation small-angle scattering

2013 ◽  
Vol 68 (8) ◽  
pp. 575-578 ◽  
Author(s):  
Hiroshi Okuda ◽  
Toshiki Horiuchi ◽  
Taisuke Tsukamoto ◽  
Shojiro Ochiai ◽  
Michiaki Yamasaki ◽  
...  
Keyword(s):  
Synchrotron Radiation ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Ordered Structures ◽  
Alloy Ingot ◽  
Long Period ◽  
Angle Scattering

Information retrieval from X-ray small-angle scattering with polychromatic (`white') synchrotron radiation

1983 ◽  
Vol 16 (1) ◽  
pp. 42-46 ◽  
Author(s):  
O. Glatter ◽  
P. Laggner
Keyword(s):  
Synchrotron Radiation ◽  
Small Angle ◽  
Particle Shape ◽  
Structural Information ◽  
Small Angle Scattering ◽  
Radius Of Gyration ◽  
X Ray ◽  
Angle Scattering ◽  
Slit Length ◽  
Hinge Bending

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.

In-situ X-Ray Small Angle Scattering during the Crystallization of Amorphous Mg76Zn24

1986 ◽  
Vol 41 (9) ◽  
pp. 1123-1128 ◽  
Author(s):  
M. Schaal ◽  
P. Lamparter ◽  
S. Steeb
Keyword(s):  
Phase Diagram ◽  
Amorphous Phase ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Crystalline Phases ◽  
X Ray ◽  
Β Phase ◽  
Angle Scattering

By X-Ray small angle scattering the relaxation and crystallization of amorphous Mg76Zn24 was investigated in-situ. Radii of gyration of the different phases developing during the annealing of the sample were determined. By comparison of the small angle scattering results with DSC-results from the literature and the phase diagram the different phases could be identified. The crystallization of amorphous Mg76Zn24 is preceded by the formation of β-phase (Mg72Zn28)-like inhomogeneities in the amorphous phase. Further annealing leads to the final crystalline phases γ-MgZn and Mg.

Microstructural Evolution of Long-Period Stacking Ordered Structures in Mg97Y2Zn1 Alloys Examined by In-Situ Small-Angle X-ray Scattering

2014 ◽  
Vol 45 (11) ◽  
pp. 4780-4785 ◽  
Author(s):  
Hiroshi Okuda ◽  
Toshiki Horiuchi ◽  
Shoki Hifumi ◽  
Michiaki Yamasaki ◽  
Yoshihito Kawamura ◽  
...  
Keyword(s):  
Microstructural Evolution ◽  
Small Angle ◽  
Ordered Structures ◽  
X Ray ◽  
Long Period ◽  
X Ray Scattering ◽  
Ray Scattering

scholarly journals Small-angle scattering on single osteons using synchrotron radiation

1984 ◽  
Vol 40 (a1) ◽  
pp. C399-C400
Author(s):  
A. Ascenzi ◽  
A. Bigi ◽  
M. H. J. Koch ◽  
A. Ripamonti ◽  
N. Roveri
Keyword(s):  
Synchrotron Radiation ◽  
Small Angle ◽  
Small Angle Scattering ◽  
Angle Scattering
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