Thermodynamics and surface properties of liquid Ga-X (X = Sn, Zn) alloys

Novaković, R.; Živkovič, Dragana

doi:10.1007/s10853-005-1942-7

Cited by 36 publications

(19 citation statements)

References 30 publications

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“…The surface tension of liquid Al-Ni alloys has been investigated by the ideal or perfect solution model, by the QCA for the regular solution [32,33], and by the CFM [5,34], given by Eqs. (1-3), as follows…”

Section: Surface Tensionmentioning

confidence: 99%

Thermophysical properties of some Ni-based superalloys in the liquid state relevant for solidification processing

et al. 2015

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The thermophysical properties, e.g., melting range, specific heat, solid fraction, density, and surface tension of four industrial Ni-based alloys, namely MC-2, CMSX-10, TMS-75, and LEK-94, have been determined within the ground-based experiments program of the ESA MAP ThermoProp project. The tests were performed under reducing atmosphere in order to lower the oxygen contamination. The results obtained have been compared with the corresponding data of Ni-based alloys available in literature. The new experimental data have been analyzed as a function of both temperature and alloy composition and interpreted by means of different thermodynamic models.

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Section: Surface Tensionmentioning

confidence: 99%

Thermophysical properties of some Ni-based superalloys in the liquid state relevant for solidification processing

et al. 2015

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“…As expected, the density and viscosity of SnZnGa alloys are lower than those of eutectic SnZn, [10] whereas a decrease of surface tension [about 2 pct in the case of alloy containing of 3 (wt pct) of Ga] is not uncommon, because of the similar effect of a small addition of high surface tension component, as observed earlier in the case of Ga-Sn. [11] In the Ga-Sn and Ga-Zn system, [11] negative deviations from the ideal solutions were observed. In the SnZn with Ga doped to 3.0 (wt pct), surface tension slightly reduced with Ga addition, as shown in Figure 2(b).…”

Section: Resultsmentioning

confidence: 98%

Physical, Thermal, Mechanical Properties, and Microstructural Characterization of Sn-9Zn-XGa Alloys

Gancarz

2015

Metall Mater Trans A

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The microstructural features, physicochemical, thermal, and mechanical properties of eutectic SnZn alloys with varying Ga contents were examined in this study. In the microstructure study using scanning electron microscope and X-ray diffraction analysis, intermetallic phases were not observed. The results indicated that the primary effect of Ga was increased mechanical properties. The physicochemical properties of liquid alloys, density, viscosity, and surface tension were measured using the free flow method. The addition of Ga to eutectic SnZn alloy generally reduced density, surface tension, viscosity, and melting point, and increased the coefficient of thermal expansion and electrical resistivity.

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“…In agreement with the concept of layered atomic structure near the interface, the relationship between c i and c s i is assumed to be given by [23,[29][30][31]:…”

Section: Surface Properties Modelmentioning

confidence: 99%

“…Also, it is worth noting that, as a result of lack of experimental data, which is the case with many metallic solutions (possibly due to reported experimental difficulties associated with measuring surface tension [4,15]), we can not compare computed and experimental results (the only experimental surface properties data of Zn-Cd liquid alloys we found in literature [47] is at 730 K, which is outside the temperatures of interest). However, we are of the opinion that since the model we employed has been used by many researchers successfully to compute surface properties [4,9,14,23,30], the results obtained in Figs. 7 and 8 are reliable.…”

Section: Temperature Effects On the Surface Tension Rmentioning

confidence: 99%

“…A combination of the popular Darken's equation [18] and an empirical formalism for viscosity and diffusion coefficient of Singh and Sommer in [19] are employed in our study of the effects of temperature on the transport or dynamic properties. The study of concentration dependence of the surface properties of Zn-Cd liquid alloys is based on the statistical mechanics model [20] commonly used in the literature [14,[21][22][23]. In the framework of the aforementioned model, the effects of temperature on these properties have also been analyzed.…”

Section: Introductionmentioning

confidence: 99%

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Temperature dependence of the bulk and surface properties of liquid Zn–Cd alloys

Awe

Azeez

2017

Appl. Phys. A

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The effects of temperature on the bulk and surface properties of liquid Zn-Cd alloys have been theoretically investigated, using a combination of self association model, Darken's thermodynamic equation for diffusion, empirical model for viscosity and a statistical mechanics model. The results from this study show that change in temperature resulted in cross-over effects in bulk and surface properties. We also found that with an increase in temperature, a pronounced asymmetry of viscosity isotherm is significantly reduced, and viscosity isotherm exhibited anomalous behaviour. Our results reveal that the homocoordination tendency in Zn-Cd liquid alloys is not strong and reduces with increasing temperature. The study further suggests a pronounced segregation of Cd-atoms at the surface of Zn-Cd liquid alloys and the extent of segregation reduces with temperature. We as well found that, in addition to the reported understanding that size-factor determines the compositional location of asymmetry of the viscosity isotherm, temperature is an operating parameter that has effect, not only on the composition of asymmetry, but also on the magnitude of asymmetry. In all the properties investigated, the most pronounced effect of temperature (52.9%) is on the viscosity while the least effect (7.1%) is on the surface tension.

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Thermodynamics and surface properties of liquid Ga-X (X = Sn, Zn) alloys

Cited by 36 publications

References 30 publications

Thermophysical properties of some Ni-based superalloys in the liquid state relevant for solidification processing

Thermophysical properties of some Ni-based superalloys in the liquid state relevant for solidification processing

Physical, Thermal, Mechanical Properties, and Microstructural Characterization of Sn-9Zn-XGa Alloys

Temperature dependence of the bulk and surface properties of liquid Zn–Cd alloys

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