Structure and chemical order of bulkSi1−xCxamorphous alloys

1998 ◽  
Vol 58 (16) ◽  
pp. 10357-10362 ◽  
Author(s):  
Daniele Mura ◽  
Luciano Colombo ◽  
Rita Bertoncini ◽  
Gianni Mula
Keyword(s):  
Chemical Order

LOCAL SYMMETRY AT THE 3d METAL SITE AND CHEMICAL ORDER IN AMORPHOUS AND CRYSTALLINE Ni1-xBx

1985 ◽  
Vol 46 (C8) ◽  
pp. C8-217-C8-221 ◽  
Author(s):  
M. Maurer ◽  
A. Mehdaoui ◽  
J. M. Friedt
Keyword(s):  
Local Symmetry ◽  
Chemical Order ◽  
Metal Site

scholarly journals Static Atomic Displacements in Crystalline Solid Solution Alloys

1996 ◽  
Vol 437 ◽  
Author(s):  
Gene Ice ◽  
Cullie Sparks ◽  
J. Lee Robertson ◽  
J. Ernest Epperson ◽  
Xiaogang Jiang
Keyword(s):  
Synchrotron Radiation ◽  
Crystalline Solid ◽  
Local Order ◽  
Chemical Order ◽  
X Ray ◽  
Atomic Displacements ◽  
X Ray Scattering ◽  
New Information ◽  
Z Contrast

AbstractAtom size differences induce static displacements from an average alloy lattice and play an important role in controlling alloy phase stability and properties. The details of this role however, are difficult to study; chemical order and displacements are strongly interrelated and static displacements are hard to measure. Diffuse x-ray scattering measurements with tunable-synchrotron radiation can now measure element-specific static displacements with an accuracy of ± 0.1 pm and can simultaneously measure local chemical order out to 20 shells or more. Ideal alloys for diffuse scattering analysis with synchrotron radiation, are those that have previously been the most intractable: alloys with small Z contrast, alloys with only local order and alloys with small size differences. The combination of precise characterization of local chemical order and precise measurement of static displacement provides new information that challenges existing alloy models. We report on an ongoing systematic study of static displacements in the Fe/Ni/Cr alloys and compare the observed static displacements to the static displacements predicted by current theories. The availability of more brilliant 3rd generation hard x-ray sources will greatly enhance these measurements.

The structural origin of broken chemical order in GeSe2 glass

2000 ◽  
Vol 80 (10) ◽  
pp. 1757-1772 ◽  
Author(s):  
P. Boolchand ◽  
W. J. Bresser
Keyword(s):  
Chemical Order

Neutron diffraction study of chemical order–disorder in PtMn3

1965 ◽  
Vol 19 (3) ◽  
pp. 413-416 ◽  
Author(s):  
S. S. Sidhu ◽  
K. D. Anderson ◽  
D. D. Zauberis
Keyword(s):  
Neutron Diffraction ◽  
Diffraction Study ◽  
Neutron Diffraction Study ◽  
Chemical Order

Ba7Mn5Cr2O20: charge and chemical order

2007 ◽  
pp. 1905 ◽  
Author(s):  
Sarah J. Dunstone ◽  
Joanna H. Clark ◽  
Michael A. Hayward
Keyword(s):  
Chemical Order

Effect of the chemical order on the electrocatalytic activity of model PtCo electrodes in the oxygen reduction reaction

2013 ◽  
Vol 108 ◽  
pp. 605-616 ◽  
Author(s):  
Marina V. Lebedeva ◽  
Veronique Pierron-Bohnes ◽  
Christine Goyhenex ◽  
Vasiliki Papaefthimiou ◽  
Spyridon Zafeiratos ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Electrocatalytic Activity ◽  
Reduction Reaction ◽  
Chemical Order
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