Transport properties and Stokes-Einstein relation in Al-rich liquid alloys

2016 ◽  
Vol 144 (24) ◽  
pp. 244502 ◽  
Author(s):  
N. Jakse ◽  
A. Pasturel
2015 ◽  
Vol 20 (2) ◽  
pp. 140-144
Author(s):  
Bhrigunandan Prasad Singh ◽  
Ishwar Koirala

We have used a formalism that connects thermodynamic and transport properties. The formalism has been used to calculate the Gibb’s free energy of mixing, concentration fluctuations in the long wavelength limit, diffusion coefficients and viscosity in Cu-Tl, Cu-Pb and Sn-Tl binary liquid alloys at 1573K, 1473K and 723K respectively with aid of size effect and no size effect. Our calculations show that appreciable size ratio has more effects on the transport properties as compared to thermodynamic properties of homo-coordinated liquid alloys Cu-Tl, Cu-Pb and Sn-Tl.Journal of Institute of Science and Technology, 2015, 20(2): 140-144  


2006 ◽  
Vol 600 (23) ◽  
pp. 5051-5061 ◽  
Author(s):  
R. Novakovic ◽  
E. Ricci ◽  
F. Gnecco

2021 ◽  
Vol 328 ◽  
pp. 115393
Author(s):  
S.O. Ogundeji ◽  
O.E. Awe ◽  
C.A. Madu ◽  
B.C. Anusionwu

2021 ◽  
Vol 0 (4) ◽  
pp. 35-42
Author(s):  
N.B. Babanly ◽  
◽  
M.V. Bulanova ◽  
A.N. Mustafaeva ◽  
A.N. Mammadov ◽  
...  

For the first time using a membrane zero-manometer, the vapor pressure S2 over the surface of the PbS liquidus in the ternary system Cu–Pb–S were determined in the range 1100÷1400 K and 0÷760 mm Hg. Based on the thermodynamic calculation, the boundaries of the immiscibility of liquid alloys of the Cu–S, Pb–S, and Cu–Pb–S systems were determined and analytically described. Critical temperatures and pressures for immiscibility regions of sulfur-rich liquid alloys are characterized by high values: Tcr= 1520÷1880 K; Pcr=170÷510 atm. The crystallization surfaces of lead sulfide with electronic conductivity (p-type PbS) and with hole conductivity (n-type PbS) are calculated and analytically de-scribed, as well as the corresponding values of sulfur vapor pressure over the crystallization surface of lead sulfide. All analytical dependencies for 3D modeling were obtained and visualized using the OriginLab computer program


2005 ◽  
Vol 576 (1-3) ◽  
pp. 175-187 ◽  
Author(s):  
R. Novakovic ◽  
E. Ricci ◽  
D. Giuranno ◽  
A. Passerone

1998 ◽  
Vol 63 (8) ◽  
pp. 1177-1186 ◽  
Author(s):  
Gerold Steinebrunner ◽  
Anthony J. Dyson ◽  
Barbara Kirchner ◽  
Hanspeter Huber

Self diffusion, shear viscosity and thermal conductivity of carbon dioxide are determined fully ab initio using two different intermolecular potential energy surfaces. These properties are calculated using the time-correlation formalism in classical equilibrium molecular dynamics simulations. The self diffusion constant is in addition determined from the Einstein relation. For the shear viscosity we use two different models of momentum localization: at the center of mass of the molecules, or at each atom. For the thermal conductivity we apply the formulae for rigid and flexible molecules assuming energy localization at the center of mass of the molecules. The results obtained are in good agreement with experiment. A fully ab initio calculation of transport properties allows for a prediction of these quantities even at state points where experiments are hardly possible.


2008 ◽  
Vol 602 (11) ◽  
pp. 1957-1963 ◽  
Author(s):  
R. Novakovic ◽  
D. Giuranno ◽  
E. Ricci ◽  
T. Lanata

BIBECHANA ◽  
2014 ◽  
Vol 12 ◽  
pp. 96-103
Author(s):  
B. P. Singh ◽  
B. K. Singh ◽  
I. S. Jha ◽  
G. K. Shrestha ◽  
I. Koirala ◽  
...  

We report a formalism that connects thermodynamics and transport properties such as viscosity and diffusion coefficient which has been used to calculate the concentration dependence of free energy of mixing, concentration-concentration fluctuations in the long wavelength limit and concentration dependence of diffusion and viscosity in Cu-Sb and Cu-Sn binary liquid alloys at 1190K and 1400K respectively with aid of size effect and no size effect. Our calculations show that a reasonable degree of chemical order exists in both alloys system. It can be concluded that size mismatch has more effects on the transport properties of Cu-Sb hetero-coordinated system with greater size ratio than Cu-Sn hetero-coordinated system.DOI: http://dx.doi.org/10.3126/bibechana.v12i0.11781BIBECHANA 12 (2015) 96-103


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