Thermodynamic investigations of liquid gallium–cadmium alloys

Shamsuddin, M.; Singh, Satyansh; Nasar, A.

doi:10.1016/s0040-6031(98)00291-3

Cited by 10 publications

(18 citation statements)

References 3 publications

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“…[1,2] The phase diagram and thermodynamic properties of binary system gallium-cadmium related to ternary system Cd-Zn-Ga are available in the literature. [3][4][5][6][7] The enthalpies of mixing of gallium-cadmium solutions reported by Vecher et al [3] are quite comparable with those published by Kleppa [4] and Hultgren et al [5] These values of enthalpy of mixing have been used for the correct evaluation of the phase diagram. Moser et al [6] have compiled the thermodynamic properties related to the formation of gallium-cadmium solutions.…”

Section: Introductionsupporting

confidence: 64%

“…The integral on the right-hand side is the area from x Zn = 0 to x Zn = x Zn under the appropriate curve in Figures 3 and 4, and the integration constant is obtained from the literature. [7] The excess molar free energy and enthalpy values for the zinc-cadmium and zinc-gallium binary systems have been adopted from the literature. [5,17] The G xs and DH values for three pseudo-binary lines as a function of x Cd were computed by drawing three lines from the cadmium corner as apex to the zincgallium binary side at the x Zn /x Ga ratio of 1/3, 1, and 3.…”

Section: B Activity Of Cadmium and Galliummentioning

confidence: 99%

“…[5,7,17] The activity surfaces of the three components in the solutions are depicted by isoactivity lines in the Figure 10. The isoactivity lines are interpolated from the resulting activity curves.…”

Section: B Activity Of Cadmium and Galliummentioning

confidence: 99%

“…Moser et al [6] have compiled the thermodynamic properties related to the formation of gallium-cadmium solutions. The thermodynamic properties of the gallium-cadmium liquid alloys have been very systematically investigated by Shamsuddin et al [7] in the temperature range of 723 to 851 using the electrochemical technique. The system shows strong positive deviation from Raoult's law.…”

Section: Introductionmentioning

confidence: 99%

“…The stability of solutions was observed to be poor in the composition range 0.25 < x Cd < 0.45 at 851 K. This indicates the tendency of immiscibility of solutions in this composition range. The binary data on galliumcadmium required for thermodynamic calculations of the Cd-Zn-Ga ternary system have been taken from the published data of Shamsuddin et al [7] There are several reports [8][9][10][11][12] on thermodynamic investigations of zinccadmium solutions. Wynnemer and Preckshot [13] studied the thermodynamic properties of zinc-cadmium solutions using the electrochemical technique in the temperature range 973 to 1173 K. Because the activity of both zinc and cadmium show positive deviation from Raoult's law, the system follows the regular solution model.…”

Section: Introductionmentioning

confidence: 99%

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Thermodynamic Investigations of Cd-Zn-Ga Liquid Solutions

Behera

Shamsuddin

2008

Metall Mater Trans B

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Activity of zinc in liquid Cd-Zn-Ga alloys has been measured by electrochemical technique based on molten salt electrolyte galvanic cell in the temperature range 723 to 823 K along three pseudo-binary lines of Zn-(Cd y Ga 1-y ), where y = 0.75, 0.50, and 0.25. The excess molar free energy, enthalpy, and entropy were computed by the Darken's treatment of the ternary solutions using published data of the relevant binary solutions and the ternary system investigated. The excess molar free energy surface of the ternary confirms substantially what one would expect from the knowledge of the corresponding curves of the component binary systems. The excess molar free energy surfaces have the maxima in the Cd-Ga side. The extremum value of molar excess free energy was found to be 3.24 kJ/mol (x Cd = 0.5, x Zn = 0.125, and x Ga = 0.375) at 800 K. The excess molar enthalpy curves have been found to be tilted toward the Zn-Cd and Cd-Ga sides. The extremum value of excess molar enthalpy was found to be 2.58 kJ/mol (x Ga = 0.3 and x Zn = x Cd = 0.35) at 800 K. The excess molar entropy surfaces have the maxima in the Zn-Ga side and minima in the Cd-Ga side. The slope-intercept method was used to compute the partial molar quantities. The activities are computed from the partial molar excess free energy for three components at 800 K. The isoactivity surfaces of the three components are depicted by the isoactivity lines. The activities of all three components show positive deviation from the Raoult's law. The excess molar free energies of the Cd-Zn-Ga system obtained experimentally are compared with those estimated from the theoretical models.

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Section: Introductionsupporting

confidence: 64%

Section: B Activity Of Cadmium and Galliummentioning

confidence: 99%

Section: B Activity Of Cadmium and Galliummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Thermodynamic Investigations of Cd-Zn-Ga Liquid Solutions

Behera

Shamsuddin

2008

Metall Mater Trans B

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ChemInform Abstract: Thermodynamic Investigations of Liquid Gallium—Cadmium Alloys.

Shamsuddin¹,

Singh²,

Nasar³

1998

ChemInform

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1998 thermodynamic functions, thermochemistry thermodynamic functions, thermochemistry E 3000 -020Thermodynamic Investigations of Liquid Gallium-Cadmium Alloys.-The activity of Cd in liquid Ga-Cd alloys in the 723-851 K range is determined by an electrochemical technique using LiCl-KCl + 5 wt.% CdCl 2 as molten salt electrolyte. The system exhibits a strong positive deviation from Raoult's law and does not follow the regular solution model. The thermodynamic data cannot be interpreted according to the Darken's quadratic formalism. The system shows poor stability in the 0.25 ≤ x Cd ≤ 0.45 composition range indicating a tendency for immiscibility in this composition range. -(SHAMSUDDIN, M.; SINGH, S. B.; NASAR, A.; Thermochim.

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Electrochemical Technique

Shamsuddin

2024

The Minerals, Metals &Amp; Materials Series

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Thermodynamic investigations of liquid gallium–cadmium alloys

Cited by 10 publications

References 3 publications

Thermodynamic Investigations of Cd-Zn-Ga Liquid Solutions

Thermodynamic Investigations of Cd-Zn-Ga Liquid Solutions

ChemInform Abstract: Thermodynamic Investigations of Liquid Gallium—Cadmium Alloys.

Electrochemical Technique

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