Neutron- and X-ray-Diffraction Study on the Structure of Amorphous Co25Ti75

1987 ◽  
Vol 42 (1) ◽  
pp. 7-12 ◽  
Author(s):  
A. Müller ◽  
E. Bühler ◽  
P. Lamparter ◽  
S. Steeb
Keyword(s):  
Diffraction Study ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Diffraction Experiment ◽  
X Ray Diffraction ◽  
X Ray ◽  
Coordination Numbers ◽  
Structure Factors ◽  
Melt Spin

Amorphous Co25Ti75 could be produced using the melt-spin-technique. A neutron- and a X-ray-diffraction experiment was performed. Assuming SNC ≡ 0 the partial Bhatia Thornton structure factors SNN and SCC as well as the partial coordination numbers were calculated. The discussion yields the atomic distances and the chemical short range order parameters.

Neutron- and X-Ray-Diffraction Study on the Structure of Amorphous Cu50Ti50

1987 ◽  
Vol 42 (4) ◽  
pp. 421-425
Author(s):  
A. Müller ◽  
E. Bühler ◽  
P. Lamparter ◽  
S. Steeb ◽  
R. Bellissent ◽  
...  
Keyword(s):  
Diffraction Study ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Isotopic Substitution ◽  
Diffraction Experiment ◽  
X Ray Diffraction ◽  
X Ray ◽  
Coordination Numbers ◽  
Structure Factors

Using the method of isotopic substitution from two neutron- and one X-ray-diffraction experiment the three partial Bhatia Thornton- as well as Faber Ziman-structure factors were determined with amorphous Cu50Ti50. The discussion yields the partial coordination numbers and atomic distances as well as the short range order parameters.

X-Ray Diffraction Study of Atomic Short-Range Order in Pt–15.0 at.% Cr Alloy

2002 ◽  
Vol 71 (10) ◽  
pp. 2456-2458 ◽  
Author(s):  
Dilip Kumar Saha ◽  
Toetsu Shishido ◽  
Ken-ichi Ohshima
Keyword(s):  
Diffraction Study ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
X Ray Diffraction ◽  
X Ray

Structural Investigation of the Metallic Glasses Mg85.5Cu14.5 and Mg70Zn30

1983 ◽  
Vol 38 (2) ◽  
pp. 142-148 ◽  
Author(s):  
E. Nassif ◽  
P. Lamparter ◽  
W. Sperl ◽  
S. Steeb
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Pair Correlation ◽  
Range Order ◽  
Order Effects ◽  
X Ray Diffraction ◽  
X Ray ◽  
Structure Factors ◽  
Similar Chemical ◽  
Total Structure

Abstract The total structure factors as well as the total pair correlation functions for amorphous Mg85.5Cu14.5 (by neutron and X-ray diffraction) and for amorphous Mg70Zn30 (by X-ray diffraction) were determined. Both alloys show similar chemical short range order effects. From the total pair correlation function of the Mg85.5Cu14.5 glass, partial coordination numbers and atomic distances could be extracted. Comparison with the structure of crystalline Mg2Cu suggests that the short range order around the copper atoms is similar in the amorphous and the crystalline phase. The densities of both amorphous alloys were measured yielding negative excess volumina.

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.

X-ray Diffraction Study of Short-range Order and Long-range Ordered Structure in Cu–87.5 at.% Pt Alloy

2003 ◽  
Vol 72 (7) ◽  
pp. 1670-1674 ◽  
Author(s):  
Dilip Kumar Saha ◽  
Toetsu Shishido ◽  
Hiroshi Iwasaki ◽  
Ken-ichi Ohshima
Keyword(s):  
Diffraction Study ◽  
Long Range ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Ordered Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Pt Alloy

scholarly journals Х-ray Study and Computer Simulation of the Structure of Amorphous-Crystalline Titanite

2022 ◽  
Vol 64 (2) ◽  
pp. 261
Author(s):  
O.V. Sidorova ◽  
L.A. Aleshina ◽  
A.D. Fofanov
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Sharp Decrease ◽  
Range Order ◽  
Simulation Methods ◽  
X Ray Diffraction ◽  
X Ray ◽  
Coordination Numbers ◽  
Metal Atoms ◽  
Ray Patterns

The structure of amorphous-crystalline titanite obtained by mechanical activation was studied by X-ray diffraction and simulation methods. The short-range order characteristics were calculated using Finbak-Warren's method. It was found that the coordination numbers of metal atoms decreased as the result of titanite grinding. The atomic configurations of short-range order of ground titanite were constructed by translation of titanite unit cell. The theoretical X-ray patterns were calculated using Debye's method and were compared with the experimental curves. The structure of ground titanite in the mill with centrifugal factor 40 g was described satisfactorily by the model of mechanical mixture of clusters containing 2016 atoms, disordered during the molecular dynamics with clusters containing 12096 atoms. The increase of grinding intensity led to the sharp decrease of sizes of small cluster.

In vacuo X-ray diffraction study of atomic short-range order in inert-gas-condensed Fe

1995 ◽  
Vol 6 (5-8) ◽  
pp. 593-596 ◽  
Author(s):  
N. Schlorke ◽  
J. Weissmüller ◽  
W. Dickenscheid ◽  
H. Gleiter
Keyword(s):  
Diffraction Study ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Inert Gas ◽  
X Ray Diffraction ◽  
X Ray
Sign in / Sign up

Export Citation Format

Share Document