Structural Study of a Decagonal Al75Fe15Ni10 Alloy by Anomalous X-ray Scattering (AXS) Method

1991 ◽  
Vol 46 (7) ◽  
pp. 605-608 ◽  
Author(s):  
E. Matsubara ◽  
Y. Waseda ◽  
A. P. Tsai ◽  
A. Inoue ◽  
T. Masumoto
Keyword(s):  
Structural Study ◽  
Radial Distribution ◽  
Distribution Functions ◽  
Radial Distribution Functions ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

A structural study of an as-quenched decagonal Al75Fe15Ni10 alloy has been carried out by anomalous x-ray scattering (AXS) as well as ordinary x-ray diffraction. The environmental radial distribution functions (RDFs) for Fe and Ni determined by the AXS measurements turned out to resemble each other and to be similar to the ordinary RDF obtained by ordinary x-ray diffraction. These results clearly show that the Ni and Fe atoms are homogeneously distributed and occupy the same sites in the decagonal structure of Al75Fe15Ni10.

What can x-ray scattering tell us about the radial distribution functions of water?

2000 ◽  
Vol 113 (20) ◽  
pp. 9149-9161 ◽  
Author(s):  
Jon M. Sorenson ◽  
Greg Hura ◽  
Robert M. Glaeser ◽  
Teresa Head-Gordon
Keyword(s):  
Radial Distribution ◽  
Distribution Functions ◽  
Radial Distribution Functions ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Anomalous X-ray Scattering on Amorphous Al87Y8Ni5 and Al90Y10 Alloys

1989 ◽  
Vol 44 (9) ◽  
pp. 814-820 ◽  
Author(s):  
E. Matsubara ◽  
Y. Waseda ◽  
A. Inoue ◽  
T. Masumoto ◽  
Keyword(s):  
Ternary Alloy ◽  
Binary Alloy ◽  
Radial Distribution ◽  
High Strength ◽  
Distribution Functions ◽  
Radial Distribution Functions ◽  
X Ray ◽  
Good Ductility ◽  
X Ray Scattering ◽  
Ray Scattering

Abstract The structure of a new amorphous Al87Y8Ni5, indicating high strength and good ductility, was studied by anomalous X-ray scattering (AXS). For comparison, a binary amorphous Al90Y10 alloy was also investigated. The environmental radial distribution functions around Y and Ni as well as the ordinary RDF in the ternary alloy, and the environmental RDF around Y and the ordinary RDF in the binary alloy were determined. From the analysis of these RDFs it is found that the Y atoms are completely surrounded by Al in the binary alloy, and that some of these Al atoms are replaced by Ni atoms in the ternary alloy.

Anomalous X-ray Scattering Study of the Quasi-crystalline Al65Cu20Fe15 Alloy

1990 ◽  
Vol 45 (1) ◽  
pp. 50-54 ◽  
Author(s):  
E. Matsubara ◽  
Y. Waseda
Keyword(s):  
Experimental Information ◽  
Rapid Quenching ◽  
Distribution Functions ◽  
Radial Distribution Functions ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Scattering ◽  
Quenching Process ◽  
Scattering Study ◽  
Ray Scattering

AbstractThe environmental radial distribution functions (RDFs) around Cu and Fe as well as the ordinary RDF of an as-quenched Al65Cu20Fe15 alloy have been determined by anomalous x-ray scattering (AXS) and conventional x-ray diffraction techniques. The experimental information indicates that a strong directional dependence along the symmetrical axes exists for the Cu atoms but not for the Fe atoms. Almost identical RDFs were also obtained in both the as-quenched and fully-annealed states of the Al65Cu20Fe15 alloy. Thus, the small differences observed between diffraction profiles of the as-quenched and annealed samples of this alloy may be attributed to defects or strains introduced during the rapid quenching process.

scholarly journals On the calculation of x-ray scattering signals from pairwise radial distribution functions

2015 ◽  
Vol 48 (24) ◽  
pp. 244010 ◽  
Author(s):  
Asmus O Dohn ◽  
Elisa Biasin ◽  
Kristoffer Haldrup ◽  
Martin M Nielsen ◽  
Niels E Henriksen ◽  
...  
Keyword(s):  
Radial Distribution ◽  
Distribution Functions ◽  
Radial Distribution Functions ◽  
X Ray ◽  
X Ray Scattering ◽  
Ray Scattering

Model Calculation for the Fe80B20 Alloy Glass

1982 ◽  
Vol 37 (6) ◽  
pp. 611-612 ◽  
Author(s):  
T. Fujiwara ◽  
H. S. Chen ◽  
Y. Waseda
Keyword(s):  
Neutron Diffraction ◽  
Model Calculation ◽  
Radial Distribution ◽  
Short Distance ◽  
Random Packing ◽  
Distribution Functions ◽  
Radial Distribution Functions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Model Structures

Abstract Three partial radial distribution functions [RDF’s] are calculated by means of relaxed dense-random packing models for a Fe80B20 glass. The model structures reproduce fairly well recently reported experimental partial RDF's derived from x-ray diffraction and neutron diffraction using isotopic substitutional methods. Most significantly, both the model calculated by means of relaxed dense-random packing models GBB (r), the appearance of a subpeak on the short distance side of the first peak.

scholarly journals Phase densities and lamellar morphologies of semicrystalline polyethylenesviaabsolute small-angle X-ray scattering measurements

2015 ◽  
Vol 48 (5) ◽  
pp. 1498-1506 ◽  
Author(s):  
Monika Basiura-Cembala ◽  
Kurt Erlacher ◽  
Jan Skov Pedersen ◽  
Bart Goderis
Keyword(s):  
Amorphous Phase ◽  
Small Angle ◽  
Volume Fraction ◽  
Distribution Functions ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Scattering ◽  
Model Independent ◽  
The Absolute ◽  
Ray Scattering

With the crystalline volume fraction from small-angle X-ray scattering (SAXS) and the density of the crystalline phase from wide-angle X-ray diffraction, the amorphous phase density of two representative polyethylenes was calculated as a function of temperature using the absolute total SAXS scattering power or invariant. The density of the amorphous phase in semicrystalline polyethylene is crystallinity independent and is lower than melt-extrapolated values reported in the literature. Model-independent SAXS-based crystallinity values can be calculated with the aid of the densities of the crystalline and amorphous phase and the absolute SAXS invariant. Such model-independent crystallinity values can be used in SAXS curve-shape analysis procedures to obtain the average thickness of the crystalline and amorphous layers also in the case of non-ideal lamellar semicrystalline polymer morphologies for which the number-average long period cannot be retrieved from the maxima in correlation functions or interface distribution functions.

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