Activity measurements of Ga in liquid Ga–Tl alloys by EMF method with zirconia solid electrolyte

Katayama, Iwao; Shimazawa, Keiko; Živković, Dragana; Manasijević, Dragan; Živković, Živan; Iida, Tsutomu

doi:10.3139/146.031296

Cited by 8 publications

(5 citation statements)

References 9 publications

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“…The present study is performed in the course of our program of experimental thermodynamic studies of gallium-antimony and gallium-indium based ternary alloys at high temperatures by use of an EMF method to determine the activity of gallium in the liquid Ga-Sb-Tl alloys. Activity of gallium in the liquid Ga-Sb and Ga-Tl alloys show negative and large positive deviations from ideal solution behavior , respectively, as shown in our previous papers [1,2], but there seem no experimental activity data for Ga-Sb-Tl alloys hitherto.…”

Section: Introductionmentioning

confidence: 70%

“…The experimental equipment and procedure used in this study are quite similar to the previous for Ga-Tl alloys [2] and Ga-In-Tl alloys [3]. Tl metal was cleaned by melting in an evacuated silica ampoule, and in an argon glove box EMF cell was constructed.…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

“…lnγ Ga /(1-x Ga ) 2 . Integral excess Gibbs energies of mixing were derived according to Darken's method from the two binary data of Ga-Sb and Ga-Tl systems combined with the ternary data along pseudobinary system of (Sb y Tl 1-y )-Ga (** in the Table ) and also from the combination of the ternary data and basal binary data of Sb-Tl system (* in the Table ).…”

mentioning

confidence: 99%

“…Integral excess Gibbs energies of mixing were derived according to Darken's method from the two binary data of Ga-Sb and Ga-Tl systems combined with the ternary data along pseudobinary system of (Sb y Tl 1-y )-Ga (** in the Table ) and also from the combination of the ternary data and basal binary data of Sb-Tl system (* in the Table ). Dragan et al [4] reported the thermodynamic properties in this system at 1073K obtained by use of several thermodynamic models [5] based on the constituent three binary data; Ga-Sb [1], Ga-Tl [2] and Sb-Tl [6]. One of the results is shown in Fig.…”

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confidence: 99%

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Experimental Determination fo Ga Activity in Liquid Ga-Sb-Tl Alloys by EMF Method

Katayama

Sendai

Živković

et al. 2007

SSP

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EMF of galvanic cell with zirconia –based solid electrolytes was measured to determine the activity of Ga in liquid Ga-Sb-Tl alloys between 946 and 1233 K along the tree pseudobinary lines of Ga-(Sb/Tl), (xSb/xTl = 1/3, 1/1 and 3/1) The cell used was: Ga,Ga2O3|(ZrO2)0.92(Y2O3) 0.08|Ga-Sb-Tl, Ga2O3. The activity of Ga (aGa ) was derived by :-3EF = RT ln aGa , where E is cell potential, F is Faraday’s constant, R is gas constant and T is cell temperature. The activity of Ga shows slight negative deviations from ideality in the section with positive deviation from ideality in the whole composition range. The activity of gallium shows slight negative deviations from Raoult’s law in the section with xSb/xTl = 3/1, moderately positive deviations in xSb/xTl =1/1 section and large positive deviations in xSb/xTl =1/3 section.

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Section: Introductionmentioning

confidence: 70%

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

mentioning

confidence: 99%

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confidence: 99%

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Experimental Determination fo Ga Activity in Liquid Ga-Sb-Tl Alloys by EMF Method

Katayama

Sendai

Živković

et al. 2007

SSP

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“…Also, ∞ and ∞ are relevant in scientific and engineering applications, such as: characterization of liquid mixture, estimation of solubility, and designing processes for separating dilute contaminants from water [9,10]. Up till date, experimentally obtained ∞ and ∞ for Ga-In and Ga-Tl are non-existent, but fortunately, information on their integral Gibbs free energies of mixing are available [11,12]. Hence, a method for computing ∞ and ∞ using Complex formation model (CFM) [13] can be used to obtain these values for Ga-In and Ga-Tl systems.…”

Section: Introductionmentioning

confidence: 99%

Computation of infinite dilute activity coefficients for Ga-X (X= In, Tl) and thermodynamic activities of all components in liquid Ga-In-Tl alloys

Oshakuade,

Awe

2021

Preprint

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The thermodynamic activities of all components in Ga-In-Tl system have been predicted at 1073, 1173 and 1273 K, using Molecular interaction volume model (MIVM). The infinite dilute activity coefficients for Ga-In and Ga-Tl binary subsystems, which were needed for the determination of thermodynamic activities of all components in Ga-In-Tl, have been predicted by using a method that is based on Complex formation model for liquid alloys. The computed thermodynamic activities of Ga in Ga-In-Tl were observed to satisfactorily agree with the available experimental data when the newly computed coefficients were applied in MIVM. The satisfactory prediction of the activity of Ga led to the prediction of the activities of the remaining two components (In and Tl). Iso-activities of all components (Ga, In and Tl) were plotted, and they reveal the dependence of the nature of chemical short range order in Ga-In-Tl system on composition.

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Electrochemical Technique

Shamsuddin

2024

The Minerals, Metals &Amp; Materials Series

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Activity measurements of Ga in liquid Ga–Tl alloys by EMF method with zirconia solid electrolyte

Cited by 8 publications

References 9 publications

Experimental Determination fo Ga Activity in Liquid Ga-Sb-Tl Alloys by EMF Method

Experimental Determination fo Ga Activity in Liquid Ga-Sb-Tl Alloys by EMF Method

Computation of infinite dilute activity coefficients for Ga-X (X= In, Tl) and thermodynamic activities of all components in liquid Ga-In-Tl alloys

Electrochemical Technique

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