Thermodynamic assessment of the binary system (Bi–Zn)

Djaballah, Y.; Bennour, Linda; Bouharkat, F.; Belgacem‐Bouzida, A.

doi:10.1088/0965-0393/13/3/006

Cited by 15 publications

(25 citation statements)

References 21 publications

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“…1 and 2 both the miscibility gap and spinodal curves, obtained after the assessments of [14,16] and [15] respectively, can be observed. In Fig.…”

Section: Resultsmentioning

confidence: 91%

“…In this work we have used the assessments of two different authors: Vizdal et al [16], after Malakhov [14], and Djaballah et al [15].…”

Section: Determination Of the Gibbs Energies Using The Calphad Methodsmentioning

confidence: 99%

“…4. The zoom of the miscibility gap occurring in the liquid region; simulations' pictures present variations of the asymptotic morphology at different temperatures and compositions for the Gibbs energy obtained by [15]. Note that the cubic anisotropy that is seen in some of the simulations is a low resolution effect with no physical meaning.…”

Section: Phase Field Simulationsmentioning

confidence: 98%

“…2. The zoom of the miscibility gap occurring in the liquid region as well as its spinodal region obtained from Gibbs energy by [15]; points in squares present variations of the simulated asymptotic morphology at different temperatures and compositions shown in Fig. 4. transitions, one of the first applications of phase field method was developed by Cahn-Hilliard [6] which describes the process of phase separation, by which the two components of a binary solution spontaneously separate.…”

Section: Introductionmentioning

confidence: 99%

“…It was also possible to determine the asymptotic compositions of Liq.#1 and Liq.#2. The latter calculations were performed for two different Gibbs energies representing the liquid phase of the Bi-Zn system obtained by two different authors [14,15] using the CALPHAD method.…”

Section: Introductionmentioning

confidence: 99%

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Phase field simulations in miscibility gaps

Braga¹,

Oliveira²,

Malheiros³

et al. 2009

Calphad

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a b s t r a c tUsing phase field simulations, it is possible to simulate the dynamics and morphology of immiscible liquids/solids appearing at the miscibility gap of any system. These simulations may also be used to determine the asymptotic compositions of the fluids for a given Gibbs energy. Even more, it is known that different parameters of the excess Gibbs energy of a certain phase may exhibit different asymptotic morphologies, in spite of the similarity of the associated equilibrium curves. This method can be used to choose the best excess Gibbs energy' parameters for the liquid (or solid) phase of a system that will suffer spinodal decomposition. It can also be important (like in the sol-gel process) to choose the best composition, temperature and time to obtain a certain wanted morphology, just by means of the Gibbs energy of the respective phase. In this work, we have performed phase field simulations of the two liquid's separation occurring in the Bi-Zn system, for different temperatures, concentrations and times. We have found a rich diversity of asymptotic morphologies for different points of the Bi-Zn phase diagram. Two different Gibbs energies were used to show how the morphologies will be affected by different parameters of the excess Gibbs energy.

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“…1 and 2 both the miscibility gap and spinodal curves, obtained after the assessments of [14,16] and [15] respectively, can be observed. In Fig.…”

Section: Resultsmentioning

confidence: 91%

“…In this work we have used the assessments of two different authors: Vizdal et al [16], after Malakhov [14], and Djaballah et al [15].…”

Section: Determination Of the Gibbs Energies Using The Calphad Methodsmentioning

confidence: 99%

Section: Phase Field Simulationsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Phase field simulations in miscibility gaps

Braga¹,

Oliveira²,

Malheiros³

et al. 2009

Calphad

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Electromotive Force Measurements in the Ternary System Bi-In-Zn

Knott

Li²,

Wang

et al. 2010

Metall Mater Trans A

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The thermodynamic properties of the ternary Bi-In-Zn system were determined with the electromotive force (EMF) method using a liquid electrolyte. Four different cross sections with constant In/Bi ratios of 1:2, 1:1, 2:1, and 9:1 were applied to measure the thermodynamic properties of the ternary system in the temperature range between the liquidus temperature of the alloys and 973 K (700°C). Zinc was added in steps of 5 at. pct from 5 to 90 pct. The partial free energies of Zn in liquid Bi-In-Zn alloys were determined as a function of concentration and temperature. The integral Gibbs free energy and the integral enthalpy of the ternary system at 873 K (600°C) were calculated by Gibbs-Duhem integration. The ternary interaction parameters were evaluated using the Redlich-Kister-Muggianu polynomials.

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The 450 °C Isothermal Section of the Zn-Bi-Ni System

Liu

Yin

et al. 2008

J Phs Eqil and Diff

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The isothermal section of the Zn-Bi-Ni ternary system at 450°C was determined experimentally using the equilibrated alloys approach. The specimens were investigated by means of optical microscopy, scanning electron microscopic/energy-dispersive spectrometric analysis and x-ray diffraction. Six three-phase regions exist in this isothermal section. The L-Bi phase is in equilibrium with all phases of Ni-Zn binary system except the a-Ni phase. Experimental results indicate that the third element, Zn or Bi, is almost insoluble in the Bi-Ni or Ni-Zn intermetallic compounds.

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Thermodynamic assessment of the binary system (Bi–Zn)

Cited by 15 publications

References 21 publications

Phase field simulations in miscibility gaps

Phase field simulations in miscibility gaps

Electromotive Force Measurements in the Ternary System Bi-In-Zn

The 450 °C Isothermal Section of the Zn-Bi-Ni System

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