Thermodynamic assessment of the Bi–Sn–Zn System

Vízdal, Jiří; Braga, Maria Helena; Kroupa, Aleš; Richter, Klaus W.; Soares, Delfim; Malheiros, L. F.; Ferreira, Jorge A.

doi:10.1016/j.calphad.2007.05.002

Cited by 80 publications

(51 citation statements)

References 28 publications

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“…A reassessment of the Bi-Sn binary and also Bi-Sn-Zn ternary system is desirable. In a recent work of Vizdal et al [14], the authors of this work reassessed the Bi-Sn and the Bi-Sn-Zn systems based, among others, on the experimental results presented in this study.…”

Section: Bi-sn-zn Systemsupporting

confidence: 59%

The experimental study of the Bi–Sn, Bi–Zn and Bi–Sn–Zn systems

Braga

Vízdal

Kroupa

et al. 2007

Calphad

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The binary Bi-Sn was studied by means of SEM (Scanning Electron Microscopy)/EDS (Energy-Dispersive solid state Spectrometry), DTA (Differential Thermal Analysis)/DSC (Differential Scanning Calorimetry) and RT-XRD (Room Temperature X-Ray Diffraction) in order to clarify discrepancies concerning the Bi reported solubility in (Sn). It was found that (Sn) dissolves approximately 10 wt% of Bi at the eutectic temperature.The experimental effort for the Bi-Zn system was limited to the investigation of the discrepancies concerning the solubility limit of Zn in (Bi) and the solubility of Bi in (Zn). Results indicate that the solubility of both elements in the respective solid solution is approximately 0.3 wt% at 200 • C.Three different features were studied within the Bi-Sn-Zn system. Although there are enough data to establish the liquid miscibility gap occurring in the phase diagram of binary Bi-Zn, no data could be found for the ternary. Samples belonging to the isopleths with w(Bi) ∼ 10% and w(Sn) ∼ 5%, 13% and 19% were measured by DTA/DSC. The aim was to characterize the miscibility gap in the liquid phase. Samples belonging to the isopleths with w(Sn) ∼ 40%, 58%, 77/81% and w(Zn) ∼ 12% were also measured by DTA/DSC to complement the study of Bi-Sn-Zn. Solubilities in the solid terminal solutions were determined by SEM/EDS. Samples were also analyzed by RT-XRD and HT-XRD (High Temperature X-Ray Diffraction) confirming the DTA/DSC results for solid state phase equilibria.

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Section: Bi-sn-zn Systemsupporting

confidence: 59%

The experimental study of the Bi–Sn, Bi–Zn and Bi–Sn–Zn systems

Braga

Vízdal

Kroupa

et al. 2007

Calphad

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“…The system Bi-Zn was assessed by Malakhov [2] but some changes were introduced in the first assessment by Vizdal and co-workers [1,3].…”

Section: Determination Of the Gibbs Energies Using The Calphad Methodsmentioning

confidence: 99%

“…where G liquid ð/Þ is the energy presented in (1). The evolution of the order parameter is described by Cahn-Hilliard equation for the phase separation in solids or in viscous liquids at the diffusive regime [10]:…”

Section: Numerical Simulationsmentioning

confidence: 99%

Simulation of the spinodal phase separation dynamics of the Bi–Zn system

Oliveira

Braga

Travasso

2008

Journal of Non-Crystalline Solids

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Keywords:Alloys Liquid alloys and liquid metals Diffusion and transport Modeling and simulation Phases and equilibria Surfaces and interfaces a b s t r a c tIn the phase separation occurring at the miscibility gap (at the spinodal region) of an alloy a discrete symmetry is spontaneously broken and a domain wall network is formed. Field theory simulations are often used to study the dynamics of topological defects networks appearing in different physical contexts. In this work, we focus on the dynamics of the two immiscible liquids appearing on the phase diagram of the Bi-Zn system, one of the basic systems of lead free solders. We use phase field simulations to quantitatively simulate the dynamics of the two liquids separation in the Bi-Zn system, at different temperatures and for different concentrations. We obtain the miscibility gap curve and the domain morphologies of the system as a function of time, temperature and component concentrations using simulations.

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“…3.1 data base [7]. In this database the assessment of the Bi-Zn system was based on Malakhov's system optimization [20] with an improvement of the new data for the solubility of Bi in the hcp-Zn terminal phase [21]. The thermodynamic modelling of Lee et al [22], with some amendments of the In-Zn interaction parameters of the binary solid phases, was adopted for the In-Zn system.…”

Section: Thermodynamic Modellingmentioning

confidence: 99%

“…The thermodynamic modelling of Lee et al [22], with some amendments of the In-Zn interaction parameters of the binary solid phases, was adopted for the In-Zn system. According to the assessment of Vizdal et al [21], the datasets for the Bi-Sn and Bi-Sn-Zn systems were included in the COST531 database [7].…”

Section: Thermodynamic Modellingmentioning

confidence: 99%

Phase Equilibria in the Bi-In-Sn-Zn System. Thermal Analysis vs. Calculations

Dębski¹,

Onderka²,

Gąsior³

et al. 2017

Archives of Metallurgy and Materials

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PHASE EQUILIBRIA IN THE Bi-In-Sn-Zn SYSTEM. THERMAL ANALYSIS VS. CALCULATIONSWith the use of the differential thermal analysis (DTA), studies of the phase transitions were conducted for 90 of alloys from the quaternary Bi-In-Sn-Zn system and for the constant ratio of Bi:In and Bi:Sn. The studies were conducted for the alloys prepared from the purity metals (Bi, In, Sn, Zn = 99.999 mas. %) by way of melting in a graphite crucible in a glove-box filled with Ar, in which the impurities level was less than 0.1 ppm. After melting and thorough mixing, the liquid alloys were poured out into a graphite test mold. The phase transition temperature data obtained from the DTA investigations were next confronted with those determined from the calculations based on the binary and ternary optimized thermodynamic parameters available in the literature. It was found that the experimental and the calculated phase transition temperatures were in good agreement.

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Thermodynamic assessment of the Bi–Sn–Zn System

Cited by 80 publications

References 28 publications

The experimental study of the Bi–Sn, Bi–Zn and Bi–Sn–Zn systems

The experimental study of the Bi–Sn, Bi–Zn and Bi–Sn–Zn systems

Simulation of the spinodal phase separation dynamics of the Bi–Zn system

Phase Equilibria in the Bi-In-Sn-Zn System. Thermal Analysis vs. Calculations

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