Short-range order effects in amorphous polycondensates as studied by spin polarized diffuse neutron scattering and simulation

1994 ◽  
Vol 272 (11) ◽  
pp. 1403-1419 ◽  
Author(s):  
C. Lamers ◽  
C. Sch�nfeld ◽  
S. M. Shapiro ◽  
J. Batoulis ◽  
R. Timmermann ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Order Effects ◽  
Spin Polarized ◽  
Diffuse Neutron

Diffuse neutron scattering to investigate the short range order for a single crystal of VD0.781

1995 ◽  
Vol T57 ◽  
pp. 107-111 ◽  
Author(s):  
M Pionke ◽  
W Schweika ◽  
T Springer ◽  
R Sonntag ◽  
D Hohlwein
Keyword(s):  
Neutron Scattering ◽  
Single Crystal ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Diffuse Neutron

Short-range-order determination in quenched NbC0.73 by elastic diffuse neutron scattering. Erratum

1991 ◽  
Vol 24 (2) ◽  
pp. 184-184
Author(s):  
B. Beuneu ◽  
T. Priem ◽  
C. H. de Novion ◽  
S. Lefebvre ◽  
J. Chevrier ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Order Determination ◽  
Diffuse Neutron

Diffuse neutron scattering study of the short-range order in VD0.781

1995 ◽  
Vol 213-214 ◽  
pp. 567-569 ◽  
Author(s):  
M. Pionke ◽  
W. Schweika ◽  
T. Springer ◽  
D. Hohlwein ◽  
R. Sonntag
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Scattering Study ◽  
Neutron Scattering Study ◽  
Diffuse Neutron

Diffuse neutron scattering and short-range order in Ni-19.4 at % Cr

1986 ◽  
Vol 20 (3) ◽  
pp. 385-387 ◽  
Author(s):  
B. Schönfeld ◽  
F. Klaiber ◽  
G. Kostorz ◽  
U. Zaune ◽  
G. McIntyre
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Diffuse Neutron

Diffuse Neutron Scattering Study of Short-Range Order in Fe0.8Al0.2Alloy

1989 ◽  
Vol 166 ◽  
Author(s):  
Werner Sciiweika
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Chemical Ordering ◽  
Iron Aluminum ◽  
Effective Pair ◽  
Neutron Scattering Study ◽  
Iron Aluminum Alloys ◽  
Diffuse Neutron

ABSTRACTDiffuse neutron scattering experiments have been performed on a single crystal Fe0.8Al0.2at T-1013K. The data are analysed in terms of short-range order and lattice displacements. Effective pair-interactions have been determined by the inverse Monte Carlo method.Further measurements of the temperature dependence of the diffuse scattering reveal a long-range ordered phase with the B32 structure below T∼ 650K. This new phase is related to the influence of the magnetism on the chemical ordering in the, iron-aluminum alloys.

Deuterium short-range order inPd0.975Ag0.025D0.685by diffuse neutron scattering

1983 ◽  
Vol 28 (6) ◽  
pp. 3579-3581 ◽  
Author(s):  
O. Blaschko ◽  
R. Klemencic ◽  
P. Fratzl ◽  
P. Weinzierl ◽  
G. Ernst ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Diffuse Neutron

Short-range-order determination in quenched NbC0.73 by elastic diffuse neutron scattering

1990 ◽  
Vol 23 (6) ◽  
pp. 497-508 ◽  
Author(s):  
B. Beuneu ◽  
T. Priem ◽  
C. H. de Novion ◽  
S. Lefebvre ◽  
J. Chevrier ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Scattering Data ◽  
Metal Atoms ◽  
Least Squares Fit ◽  
Order Determination ◽  
Good Agreement ◽  
Diffuse Neutron

The elastic diffuse neutron scattering of an NbC0.73 single-crystal has been measured at room temperature on two different spectrometers, the four-circle D10 at the HFR–ILL (Grenoble), and the two-axis G44 with time-of-flight analysis at the Laboratoire Léon Brillouin (Saclay). The data were treated either by Fourier transformations or by least-squares fit. The short-range-order parameters and the interatomic static displacements obtained by the various experiments and/or data treatment are in good agreement: carbon vacancies tend to be third neighbours in the f.c.c. metalloid sublattice and metal atoms relax away from the vacancy first neighbours by ~0.05 Å. It is shown that the treatment of diffuse scattering data limited to two reciprocal planes [(001) and (1{\bar 1}0)] gives satisfactory results.

Short-Range Order in Ni-Rich Ni–Ti Studied by Diffuse Neutron Scattering

1999 ◽  
Vol 175 (2) ◽  
pp. 527-536 ◽  
Author(s):  
R. Bucher ◽  
B. Schönfeld ◽  
G. Kostorz ◽  
M. Zolliker
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Diffuse Neutron

Diffuse Neutron Scattering and Short-Range Order in Alloys – Contrast Variation and Contrast Enhancement by Isotopic Replacement

1986 ◽  
Vol 82 ◽  
Author(s):  
P.P. Mueller ◽  
L. Reinhard ◽  
B. Schoenfeld ◽  
G. Kostorz ◽  
W. Buehrer ◽  
...  
Keyword(s):  
Neutron Scattering ◽  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Contrast Variation ◽  
Atomic Displacements ◽  
Cu Alloys ◽  
Zn Alloy ◽  
Ordered State ◽  
Diffuse Neutron

ABSTRACTIn Al-Cu alloys containing Guinier-Preston zones, the scattering contributions due to short-range order and atomic displacements vary differently when the scattering contrast between Al and Cu is changed. The diffuse neutron scattering of Al-Cu single crystals containing 63Cu or 65Cu is compared and evaluated to test the current methods of separating the two scattering contributions. - The nature of a sugggtted ordered state in α-brass is also studied by neutron scattering, using Cu to enhance the scattering contrast in a Cu-30 at.% Zn alloy. A broad diffuse peak is found in powdered, appropriately aged samples, confirming that the first Warren-Cowley short-range order parameter is negative.

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