Temperature dependence of short-range-order parameters

1978 ◽  
Vol 21 (4) ◽  
pp. 454-458
Author(s):  
G. P. Revkevich ◽  
E. I. Bodneva
Keyword(s):  
Temperature Dependence ◽  
Short Range ◽  
Short Range Order ◽  
Order Parameters ◽  
Range Order

Temperature dependence of short-range-order parameters

1978 ◽  
Vol 21 (4) ◽  
pp. 450-453
Author(s):  
G. P. Revkevich ◽  
E. I. Bodneva ◽  
A. A. Katsnel'son
Keyword(s):  
Temperature Dependence ◽  
Short Range ◽  
Short Range Order ◽  
Order Parameters ◽  
Range Order

Calculation of Pairwise Effective Potentials in the Disordered Ni-22.5at.%Fe Alloy Using Model Potential Method with Account of Size Effect

2021 ◽  
Vol 323 ◽  
pp. 125-129
Author(s):  
Valentin Silonov ◽  
Lkhamsuren Enkhtor
Keyword(s):  
Size Effect ◽  
Short Range ◽  
Short Range Order ◽  
Potential Method ◽  
Model Potential ◽  
Order Parameters ◽  
Range Order ◽  
Disorder Phase Transition ◽  
Effective Potentials ◽  
Atomic Displacements

Pairwise effective potentials in first seventeen shells of the Ni-22.5at.%Fe alloy are calculated using model potential method with account of the linear size effect. Using obtained values of pairwise effective potentials, the short range order parameters on the first seventeen shells of alloy are calculated by Krivoglaz-Clapp-Moss method. The calculated values ​​of the short-range order parameters were fitted to the experimental values ​​by varying the parameters of static atomic displacements. Reliable value of critical temperature of order-disorder phase transition in Ni-22.5at.%Fe alloy was calculated using obtained meanings of pairwise effective potentials.

THE APPROACH TO PARAMAGNETIC SATURATION

1962 ◽  
Vol 40 (12) ◽  
pp. 1693-1702 ◽  
Author(s):  
Richard Stevenson
Keyword(s):  
External Field ◽  
Magnetic Moment ◽  
Short Range ◽  
Short Range Order ◽  
Field Method ◽  
Order Parameters ◽  
Range Order ◽  
Molecular Field ◽  
Paramagnetic Materials ◽  
High Fields

The process of paramagnetic saturation in real substances is considered by means of the molecular field method and by Smart's elaboration of the Oguchi method. The magnetic moment and short-range order parameters are calculated as a function of the external field. Some qualitative rules are obtained which describe general tendencies toward saturation. The possibility arises that paramagnetic materials in high fields may change into a state of greater stability by altering their exchange couplings.

scholarly journals Temperature dependence of the short-range order of Cu65Zr35 metallic glass

2013 ◽  
Vol 32 ◽  
pp. 51-56 ◽  
Author(s):  
N. Mattern ◽  
J. Bednarcik ◽  
M. Stoica ◽  
J. Eckert
Keyword(s):  
Metallic Glass ◽  
Temperature Dependence ◽  
Short Range ◽  
Short Range Order ◽  
Range Order

Short-range Order Parameters in fcc Binary Alloys

2007 ◽  
pp. 145-158 ◽  
Author(s):  
J. S. Faulkner ◽  
Silvia Pella ◽  
Aurelian Rusanu ◽  
Yevgeniy Puzyrev
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Binary Alloys ◽  
Order Parameters ◽  
Range Order ◽  
Fcc Binary Alloys

HREM and Image Simulation of Short-Range-Order Domains in Ion Irradiated Zirconolite

2000 ◽  
Vol 6 (S2) ◽  
pp. 392-393
Author(s):  
S. X. Wang ◽  
L. M. Wang ◽  
R. C. Ewing
Keyword(s):  
High Temperature ◽  
Critical Temperature ◽  
Temperature Dependence ◽  
Short Range ◽  
Radiation Effects ◽  
Short Range Order ◽  
Fluorite Structure ◽  
Range Order ◽  
Image Simulation ◽  
Ion Species

Zirconolite (CaZrTi2O7) is an important phase proposed for immobilization of plutonium. Radiation effects in zirconolite were studied by 1 MeV Kr+ and 1.5 MeV Xe+ irradiation at various temperatures. Zirconolite became amorphous at temperatures below a critical temperature, Tc. The critical temperature was found to be a function of ion species: Tc - 654 K for 1 MeV Kr+ and 710 K for 1.5 MeV Xe+. The temperature dependence of amorphization dose is shown in FIG. 1. Above Tc, the specimen remained crystalline after prolonged irradiation (up to 3.6×l015 ions/cm2). However, the high-temperature irradiated zirconolite was transformed into the fluorite structure (as shown by the strong diffraction maxima in FIG. 2). In addition to the maxima from the fluorite structure, strong diffuse maxima were observed surrounding the Bragg position of pyrochlore superlattice (FIG. 2).

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