scholarly journals Thermodynamic analysis of ternary system Ga-In-Sb

2008 ◽  
Vol 62 (3) ◽  
pp. 153-159 ◽  
Author(s):  
Lidija Gomidzelovic ◽  
Dragana Zivkovic ◽  
Ivan Mihajlovic
Keyword(s):  
General Solution ◽  
Ternary System ◽  
Temperature Interval ◽  
Thermodynamic Analysis ◽  
Interaction Parameters ◽  
Ternary Interaction ◽  
Gibbs Energies

The results of thermodynamic analysis of ternary system Ga-In-Sb are presented in these work. Thermodynamic analysis was carried out by applying general solution predicting method in sections from Ga, In and Sb corner, respectively, with following ratios 1:3, 1:1, 3:1 in the temperature interval 873 to 1673 K. Based on this, excess molar Gibbs energies and activity of all components in specified temperature interval were calculated. Also, using the obtained data and MLAB software, ternary interaction parameters for Ga-In-Sb system were determined.

scholarly journals Cu-Al-Zn system: Calculation of thermodynamic properties in liquid phase

2013 ◽  
Vol 67 (1) ◽  
pp. 157-164 ◽  
Author(s):  
Lidija Gomidzelovic ◽  
Ivan Mihajlovic ◽  
Ana Kostov ◽  
Dragana Zivkovic
Keyword(s):  
Mathematical Modeling ◽  
Liquid Phase ◽  
General Solution ◽  
Thermodynamic Properties ◽  
Ternary System ◽  
Shape Memory ◽  
Ternary Interaction ◽  
General Solution Model ◽  
Shape Memory Materials ◽  
System Calculation

In the paper are presented the results of thermodynamic analysis of Cu-Al-Zn ternary system, which belongs to a group of copper-based shape memory materials. General solution model was used for calculation of thermodynamic properties in the temperature interval from 1373 to 2173 K, in sections from Cu, Al and Zn corner, respectively, with following ratios of 1:3, 1:1 and 3:1. Also, on the basis of the obtained results, ternary interaction parameters were determined using Mathematical Modeling System (MLAB).

Numerical Prediction of the Thermodynamic Properties of Ternary Al-Ni-Pd Alloys

2016 ◽  
Vol 35 (1) ◽  
pp. 37-45
Author(s):  
Maryana Zagula-Yavorska ◽  
Jolanta Romanowska ◽  
Sławomir Kotowski ◽  
Jan Sieniawski
Keyword(s):  
Thermodynamic Properties ◽  
Ternary System ◽  
Boundary Conditions ◽  
Mole Fraction ◽  
Thermodynamic Functions ◽  
Binary Systems ◽  
Interaction Parameters ◽  
Ternary Interaction ◽  
The Third ◽  
Gibbs Triangle

AbstractThermodynamic properties of ternary Al-Ni-Pd system, such as exGAlNPd, µAl(AlNiPd),µNi(AlNiPd) and µPd(AlNiPd) at 1,373 K, were predicted on the basis of thermodynamic properties of binary systems included in the investigated ternary system. The idea of predicting exGAlNiPd values was regarded as calculation of values of the exG function inside a certain area (a Gibbs triangle) unless all boundary conditions, that is values of exG on all legs of the triangle are known (exGAlNi, exGAlPd, exGNiPd). This approach is contrary to finding a function value outside a certain area, if the function value inside this area is known. exG and LAl,Ni,Pd ternary interaction parameters in the Muggianu extension of the Redlich–Kister formalism were calculated numerically using the Excel program and Solver. The accepted values of the third component xx differed from 0.01 to 0.1 mole fraction. Values of LAlNiPd parameters in the Redlich–Kister formula are different for different xx values, but values of thermodynamic functions: exGAlNiPd, µAl(AlNiPd), µNi(AlNiPd) and µPd(AlNiPd) do not differ significantly for different xx values. The choice of xx value does not influence the accuracy of calculations.

scholarly journals Thermodynamic calculations in ternary titanium-aluminium-manganese system

2008 ◽  
Vol 73 (4) ◽  
pp. 499-506 ◽  
Author(s):  
Ana Kostov ◽  
Dragana Zivkovic
Keyword(s):  
Experimental Data ◽  
Thermodynamic Properties ◽  
Ternary System ◽  
Thermodynamic Analysis ◽  
Experimental Results ◽  
Thermodynamic Calculations ◽  
Thermodynamic Optimization ◽  
Gibbs Energies ◽  
Different Temperatures ◽  
Titanium Aluminium

Thermodynamic calculations in the ternary Ti-Al-Mn system are shown in this paper. The thermodynamic calculations were performed using the FactSage thermochemical software and database, with the aim of determining thermodynamic properties, such as activities, coefficient of activities, partial and integral values of the enthalpies and Gibbs energies of mixing and excess energies at two different temperatures: 2000 and 2100 K. Bearing in mind that no experimental data for the Ti-Al-Mn ternary system have been obtained or reported. The obtained results represent a good base for further thermodynamic analysis and may be useful as a comparison with some future critical experimental results and thermodynamic optimization of this system.

scholarly journals Determination of the thermodynamic properties for Cr.Co.Me (Me = Mo, Al) systems by using the general solution model for predicting

1999 ◽  
Vol 64 (12) ◽  
pp. 765-774 ◽  
Author(s):  
Dragana Zivkovic ◽  
Zivan Zivkovic
Keyword(s):  
General Solution ◽  
Thermodynamic Properties ◽  
Ternary System ◽  
Ternary Systems ◽  
Solution Model ◽  
Molar Excess ◽  
Gibbs Energies ◽  
General Solution Model ◽  
Excess Gibbs Energies

The results of the determination of the thermodynamic properties for ternary systems Cr.Co.Me (Me = Mo, Al) using a new general solution model for the predictions are presented in this work. For five sections (with mole ratio Co :Me = 2:8, 4:6, 5:5, 6:4, 8:2) investigated in each ternary system at temperature of 2000 K, integral molar excess Gibbs energies and partial molar thermodynamic properties of chromium were calculated.

scholarly journals Thermodynamic analysis and characterization of alloys in the Au-In-Sb system

2007 ◽  
Vol 61 (3) ◽  
pp. 157-163 ◽  
Author(s):  
Lidija Gomidzelovic ◽  
Dragana Zivkovic ◽  
Desimir Markovic ◽  
Bata Marjanovic
Keyword(s):  
Ternary System ◽  
Optical Microscopy ◽  
Temperature Interval ◽  
Thermodynamic Analysis ◽  
Edx Analysis ◽  
Predicting Methods

The results of thermodynamic analysis and the characterization of alloys in the ternary system Au-In-Sb are presented in this study. Thermodynamic analysis was carried out by applying the Toop and Muggianu predicting methods in sections from the Au, In and Sb corner, respectively, with the following ratios 1:3 and 3:1. in the temperature interval from 873 to 1673 K. Characterization of the alloys in section Au-In-Sb was perfor?med using optical microscopy, SEM/EDX analysis and by hardness measurements of the investigated alloys.

Solid-gas equilibrium in the binary system lithium iodide-water

1981 ◽  
Vol 46 (13) ◽  
pp. 3157-3165 ◽  
Author(s):  
Jiřina Hejtmánková ◽  
Čestmír Černý ◽  
Luděk Jettmar
Keyword(s):  
Binary System ◽  
Water Vapour ◽  
Temperature Interval ◽  
Thermodynamic Functions ◽  
Dynamic Method ◽  
Heats Of Formation ◽  
Lithium Iodide ◽  
Gibbs Energies ◽  
Flow Apparatus ◽  
The Absolute

An investigation has been made of the equilibria of hydration in the system solid lithium iodide-water vapour in the temperature interval covering the range of existence of the solid hydrates, using a dynamic method in a flow apparatus. From measured equilibrium pressures, the changes of the thermodynamic functions accompanying these reactions were determined and the values of the heats of formation, of the Gibbs energies of formation and of the absolute entropies of the solid mono-, di- and trihydrate of lithium iodide at 298.15 K were calculated.

Thermodynamic analysis of phase equilibria in the Cr–Mo–B ternary system

Calphad ◽  
2010 ◽  
Vol 34 (3) ◽  
pp. 263-270 ◽  
Author(s):  
Masayuki Tojo ◽  
Tatsuya Tokunaga ◽  
Hiroshi Ohtani ◽  
Mitsuhiro Hasebe
Keyword(s):  
Ternary System ◽  
Phase Equilibria ◽  
Thermodynamic Analysis
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