Determination of the atomic short-range order in a Tb-Cu amorphous alloy by X-ray and neutron diffraction

1984 ◽  
Vol 14 (10) ◽  
pp. 2239-2257 ◽  
Author(s):  
P Chieux ◽  
R de Kouchkovsky ◽  
B Boucher
1985 ◽  
Vol 46 (C8) ◽  
pp. C8-87-C8-92 ◽  
Author(s):  
R. Bellissent ◽  
J. Bigot ◽  
Y. Calvayrac ◽  
S. Lefebvre ◽  
A. Quivy

1982 ◽  
Vol 25 (11) ◽  
pp. 6995-7002 ◽  
Author(s):  
E. Dartyge ◽  
H. Bouchiat ◽  
P. Monod

1996 ◽  
Vol 51 (12) ◽  
pp. 1179-1184 ◽  
Author(s):  
H. Uhlig ◽  
M. Frieß ◽  
J. Dürr ◽  
R. Bellissent ◽  
H.-P. Lamparter ◽  
...  

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.


1985 ◽  
Vol 15 (5) ◽  
pp. L99-L103 ◽  
Author(s):  
S Lefebvre ◽  
A Quivy ◽  
J Bigot ◽  
Y Calvayrac ◽  
R Bellissent

2008 ◽  
Vol 354 (30) ◽  
pp. 3572-3579 ◽  
Author(s):  
U. Hoppe ◽  
R.K. Brow ◽  
N.P. Wyckoff ◽  
A. Schöps ◽  
A.C. Hannon

1987 ◽  
Vol 42 (5) ◽  
pp. 507-510 ◽  
Author(s):  
E. Bühler ◽  
P. Lamparter ◽  
S. Steeb

By means of X-ray diffraction in transmission the molten MgxZn(1oo-x)-alloys (x = 0, 8, 15, 30, 40, 50, 60, 70, 73, 80, 90, 100) were investigated and the total structure factor S (Q) , the total pair correlation function, the number of nearest neighbours as well as the atomic distances were evaluated. For 30 ≦ x ≦ 80 a premaximum in S (Q) was observed which is caused by chemical short range order. The comparison of the premaximum of the Mg70Zn30-melt with that of the corresponding amorphous alloy shows that within the melt the chemical short range order amounts to about 40% of that of the amorphous alloy.


1993 ◽  
Vol 156-158 ◽  
pp. 165-168 ◽  
Author(s):  
H. Uhlig ◽  
L. Rohr ◽  
H.-J. Güntherodt ◽  
P. Fischer ◽  
P. Lamparter ◽  
...  

1986 ◽  
Vol 19 (3) ◽  
pp. 164-167 ◽  
Author(s):  
E. Bubeck ◽  
V. Gerold

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.


1988 ◽  
Vol 43 (2) ◽  
pp. 177-180 ◽  
Author(s):  
N. Mattern ◽  
W. Matz ◽  
H. Hermann

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.


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