On the limitations of the Borie–Sparks method to determine short-range-order coefficients from diffraction experiments

1986 ◽  
Vol 19 (3) ◽  
pp. 164-167 ◽  
Author(s):  
E. Bubeck ◽  
V. Gerold
Keyword(s):  
Experimental Data ◽  
Solid Solution ◽  
Neutron Diffraction ◽  
Size Effects ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Atomic Size ◽  
X Ray ◽  
Crucial Problem

In order to determine short-range order in a solid solution from diffuse X-ray or neutron diffraction experiments the separation of atomic size effects from the experimental data is a crucial problem. It is demonstrated by a model calculation that a clear improvement of the separation method proposed by Borie & Sparks is obtained if the range of measurement is extended to include the first Brillouin zone.

Neutron Diffraction Study on the Short-Range Order in ZrO0.30Interstitial Solid Solution

1985 ◽  
Vol 54 (7) ◽  
pp. 2543-2551 ◽  
Author(s):  
Yasuaki Sugizaki ◽  
Sadae Yamaguchi ◽  
Shinya Hashimoto ◽  
Makoto Hirabayashi ◽  
Yoshikazu Ishikawa
Keyword(s):  
Solid Solution ◽  
Neutron Diffraction ◽  
Diffraction Study ◽  
Short Range ◽  
Short Range Order ◽  
Neutron Diffraction Study ◽  
Range Order

A Diffraction Study of Amorphous Si0.40C 0.24N0.36

1996 ◽  
Vol 51 (12) ◽  
pp. 1179-1184 ◽  
Author(s):  
H. Uhlig ◽  
M. Frieß ◽  
J. Dürr ◽  
R. Bellissent ◽  
H.-P. Lamparter ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Chemical Bonding ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Contrast Variation ◽  
X Ray ◽  
Structure Factors ◽  
Amorphous Si

Abstract In the present work, amorphous Si0.40C0.24N0.36 samples were investigated. X-ray and neutron diffraction experiments were performed, in order to evaluate the structure factors by the method of contrast variation. The structure can be described as crosslinked Si-N-C matrices. Within these matrices SiN4 tetrahedra are predominant. Direct Si-Si contact does not occur. We report on the short range order and the nature of chemical bonding.

Structure of potassium germanophosphate glasses by X-ray and neutron diffraction. Part 1: Short-range order

2008 ◽  
Vol 354 (30) ◽  
pp. 3572-3579 ◽  
Author(s):  
U. Hoppe ◽  
R.K. Brow ◽  
N.P. Wyckoff ◽  
A. Schöps ◽  
A.C. Hannon
Keyword(s):  
Neutron Diffraction ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
X Ray

Short range order in amorphous Ni50Ta50 alloys by means of X-ray and neutron diffraction

1993 ◽  
Vol 156-158 ◽  
pp. 165-168 ◽  
Author(s):  
H. Uhlig ◽  
L. Rohr ◽  
H.-J. Güntherodt ◽  
P. Fischer ◽  
P. Lamparter ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
X Ray

Partial Atomic Distribution Functions of Liquid Fe75B25

1988 ◽  
Vol 43 (2) ◽  
pp. 177-180 ◽  
Author(s):  
N. Mattern ◽  
W. Matz ◽  
H. Hermann
Keyword(s):  
Neutron Diffraction ◽  
Short Range ◽  
Short Range Order ◽  
Distribution Functions ◽  
Range Order ◽  
Experimental Results ◽  
Partial Structure ◽  
X Ray ◽  
Atomic Distribution ◽  
Structure Factors

Abstract Partial structure factors and atomic distribution functions for liquid Fe75 B25 were determined for the Fe-Fe and Fe-B pairs by means of X-ray and neutron diffraction. The experimental results show a strong chemical short-range order in the melt which is similar to that of amorphous Fe75B25.

Short Range Structure of Amorphous Ni50Ta50-Alloys by Means of X-Ray- and Neutron-Diffraction

1992 ◽  
Vol 47 (7-8) ◽  
pp. 826-832 ◽  
Author(s):  
H. Uhlig ◽  
L. Rohr ◽  
H.-J. Güntherodt ◽  
P. Fischer ◽  
P. Lamparter ◽  
...  
Keyword(s):  
Neutron Diffraction ◽  
Short Range ◽  
Short Range Order ◽  
Nearest Neighbor ◽  
Range Order ◽  
Partial Structure ◽  
X Ray ◽  
Coordination Numbers ◽  
Binding Behavior ◽  
Structure Factors

Abstract Amorphous Ni50Ta50-samples with their high crystallization temperature of 985 K were investigated. To evaluate the three partial structure factors of amorphous Ni50Ta50 one X-ray diffraction experiment was performed with Ni50Ta50 and two neutron diffraction experiments with Co10Ni40Ta50 and with Ni50Ta50, respectively. The Bhatia-Thornton partial structure factor SCC(Q) indicates rather strong chemical short range order which also explains the premaximum observed in the Faber-Ziman partial SNiNi(Q)-function. The nearest neighbor distance is 2.82 Å for Ni-Ni, 2.91 Å for Ta-Ta, and is shortest for Ni-Ta, 2.44 Å. The coordination numbers are NNiNi = 4.9, NTaTa = 8.2, and NNiTa = 6.0. We report on the chemical short range order and the possible binding behavior in a-Ni50Ta50 and compare the present results with those reported in the literature on a-Ni40Ti60 as well as on a-Ni55Ta45

Nahordnung in binären Schmelzen und Mischkristallen / Short Range Order in Binary Melts and Binary Solid Solubilities

1977 ◽  
Vol 32 (11) ◽  
pp. 1222-1228 ◽  
Author(s):  
Alfred Boos ◽  
Peter Lamparter ◽  
Siegfried Steeb
Keyword(s):  
Solid Solution ◽  
Order Parameter ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Range Order Parameter ◽  
Refined Model ◽  
Binary Solid Solution ◽  
X Ray ◽  
Angle Scattering

AbstractThe X-Ray or neutron-intensity scattered from binary melts can be described in a similar way as that from a binary solid solution, namely as a sum of three contributions. One of these contributions describes the short range order scattering which consists of small angle scattering for segregated melts and which leads to premaxima for melts containing compound-like agglomerates. A method is shown to reveal the short range order parameter for the so-called simple model of the melts. A second method leads to the evaluation of the concentration of the agglomerates existing in com­ pound-forming melts for the so-called refined model of the melts.

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