Vertex Correction Contribution to the Decay Rate of Concentration Fluctuations in Binary Liquid Critical Mixtures

1972 ◽  
Vol 5 (1) ◽  
pp. 421-424 ◽  
Author(s):  
Shih-Min Lo ◽  
Kyozi Kawasaki
Keyword(s):  
Decay Rate ◽  
Concentration Fluctuations ◽  
Vertex Correction ◽  
Binary Liquid

scholarly journals Theoretical investigations on temperature dependence of thermodynamic properties and concentration fluctuations of In-Tl binary liquid alloys by optimization method

BIBECHANA ◽  
2017 ◽  
Vol 15 ◽  
pp. 11-23
Author(s):  
G K Shrestha ◽  
I S Jha ◽  
B K Singh
Keyword(s):  
Free Energy ◽  
Liquid Alloy ◽  
Entire Range ◽  
Excess Free Energy ◽  
Concentration Fluctuations ◽  
Binary Liquid ◽  
Energy Of Mixing ◽  
Different Temperatures ◽  
Free Energy Of Mixing ◽  
Best Fit

The thermodynamic properties, i.e. free energy of mixing (GM), heat of mixing (HM), entropy of mixing (SM) and activity (ai) of the component i (i , and structural property i.e. concentration fluctuations in long wave-length limit [Scc(0)] of In-Tl binary liquid alloy at a specified temperature have been investigated in the framework of quasi-lattice model on assuming the coupled effect of size ratio and entropic (or energetic) as well as enthalpic effect. These properties of In-Tl liquid alloy at 723 K have been computed theoretically by estimating the best fit value of order energy parameter (W) and size ratio () over the entire range of concentration in order to match their experimental values. The best fit value of  W at 723 K has been used to determine the values of W at different temperatures with the help of temperature derivative of W which are then used for the optimization procedure in order to calculate the corresponding values of excess free energy of mixing, partial excess free energy of mixing and activity of the components involved in the alloy at different temperatures. These parameters have been used to investigate the concentration fluctuations in long wavelength limit {Scc(0)} of In-Tl binary liquid alloy at different temperatures over the entire range of concentration which have been used to predict the various other structural properties like excess stability function (EXS), diffusion coefficient ratio (Dm/Did), short range order parameter (α1) at different temperatures.BIBECHANA 15 (2018) 11-23

Dynamics of concentration fluctuations in a heterocoordinated binary liquid alloy

1983 ◽  
Vol 28 (10) ◽  
pp. 5583-5598 ◽  
Author(s):  
M. Soltwisch ◽  
D. Quitmann ◽  
H. Ruppersberg ◽  
J. B. Suck
Keyword(s):  
Liquid Alloy ◽  
Concentration Fluctuations ◽  
Binary Liquid Alloy ◽  
Binary Liquid

scholarly journals Concentration Fluctuations in Liquid Alloys of Alkali Metals from Semiempirical Theories of Mixtures

1985 ◽  
Vol 40 (4) ◽  
pp. 425-429
Author(s):  
L. J. Gallego ◽  
J. A. Alonso ◽  
J. A. Somoza
Keyword(s):  
Alkali Metals ◽  
Concentration Fluctuations ◽  
Size Difference ◽  
Liquid Alloys ◽  
Size Mismatch ◽  
Atomic Size ◽  
Binary Liquid

The semiempirical theories of mixtures developed by van Laar, Margules, Scatchard-Hamer, Wilson and Renon and Prausnitz are used to study the concentration fluctuations of binary liquid alloys formed among the alkali metals. Examination of the fitting capabilities of these theories leads to the conclusion that those of van Laar, Scatchard-Hamer and Renon and Prausnitz are appropriate both when the atomic sizes of the component metals are similar and when there is considerable atomic size mismatch. The Margules and Wilson theories, on the contrary, appear to be restricted only to cases in which the size difference between the two types of atoms is small.

Theory of Spinodal Decomposition in Very Viscous Binary Liquid Mixtures

1990 ◽  
Vol 215 ◽  
Author(s):  
Josef Jäckle ◽  
M. Pieroth
Keyword(s):  
Spinodal Decomposition ◽  
Structural Relaxation ◽  
Liquid Mixtures ◽  
Binary Liquid Mixtures ◽  
Concentration Fluctuations ◽  
Linear Forms ◽  
Binary Liquid ◽  
Non Linear

AbstractWe have developed a theory for the evolution of concentration fluctuations after a temperature quench which takes the effect of slow structural relaxation into account. In its linear and non-linear forms, it generalizes the theories of Cahn, Hilliard and Cook, and of Langer, Bar-on and Miller.

Decay rate of concentration fluctuations in microemulsions

1999 ◽  
Vol 110 (15) ◽  
pp. 7516-7523 ◽  
Author(s):  
Makiko Nonomura ◽  
Takao Ohta
Keyword(s):  
Decay Rate ◽  
Concentration Fluctuations
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