Über die Eigenschaften metallischer Schmelzen

Gebhardt, Erich; Becker, Manfred; Sebastian, Heinrich

doi:10.1515/ijmr-1955-460913

Cited by 6 publications

(5 citation statements)

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“…The authors are aware of no other volumetric inas compared to those for organic systems. are consistent with the excess volumes obtained for Mg-Bi, Mg-Pb, and Mg-Sn alloys (5)(6)(7). Notice also that the minimum in the excess volume curve corresponds rather well with the stoichiometry of the Mg3Sb2 compound.…”

Section: Resultssupporting

confidence: 89%

“…Through the years, advancements in boiler design and temperature measurement have increased the precision, accuracy, and range of applicability of the differential boiling point technique. The experimental apparatus first employed was that of the ebulliometer (3)(4)(5). The ebulliometers were of the Swietoslawski type, with use of the principle of the Cottrell pump.…”

Section: Introductionmentioning

confidence: 99%

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Molar and excess volumes of liquid indium-antimony, magnesium-antimony, and lead-antimony alloys

Hansen¹,

Kaminski²,

Eckert³

1990

J. Chem. Eng. Data

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Infinite dilution activity coefficients were measured for 54 systems with an improved differential boiling point apparatus. Following the suggestions of Scott, a radical new boiler design Is used that exhibits better temperature stability, allowing more precise and accurate data to be measured. The results are compared to available literature data. The temperature dependence of 7" was also studied and found to be reasonable. Estimates of the partial molar excess enthalpy at infinite dilution are reported.

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Molar and excess volumes of liquid indium-antimony, magnesium-antimony, and lead-antimony alloys

Hansen¹,

Kaminski²,

Eckert³

1990

J. Chem. Eng. Data

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“…The dissolution data can be examined in terms of the temperature and velocity dependence and the mag- (10). ** The dissolution flux, J,~, is in units of g Ta/cm~-sec.…”

Section: Discussionmentioning

confidence: 99%

Rate of Solution of Rotating Tantalum Disks in Liquid Tin

Kassner

1967

J. Electrochem. Soc.

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The dissolution kinetics of tantalum in liquid tin have been investigated under the well‐defined hydrodynamic conditions produced by the rotating‐ disk sample geometry. Dissolution data were obtained under laminar flow conditions (Reynolds No. 1×103 normalto 1×105 ) for the temperature range 800°– 1200°C. Much of the experimental data was found to be in a region of mixed transport control; however, for specific conditions of temperature and velocity, both limiting cases for reaction and diffusion control were also observed. The solubility of tantalum in liquid tin was determined over the temperature range 600°–1200°C. The diffusion coefficient of Ta‐182 in liquid tin was also measured at temperatures between 500° and 1100°C by the capillary‐reservoir method. These data were used in the conyective‐diffusion model set forth by Levich to calculate values for the diffusion‐controlled dissolution flux. The model was extended to include the range of Schmidt numbers between 4 and 1000. A Schmidt number of ∼25 in the tantalum‐tin system at 1200°resulted in a 12% reduction in the calculated dissolution flux. Within the limits of error of the experimental diffusion data, the dissolution flux from the model was in agreement with the experimental values in the region of diffusion control.

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“…The phase diagram of this system, depicted in Figure 1, clearly shows the existence of a solid compound with the empirical chemical formula Mg2Sn, which melts congruently at 1051 K. The stoichiometry of the intermetallic compound is deduced from the location of the maximum of the liquidus curve, which occurs at 66.7 at. % Mg. Viscosity measurements (Gebhardt et al, 1955) a few degrees above the melting temperature of the solid compound shown in Figure 2 indicate that this structure-sensitive quantity reaches a relatively broad maximum at the same position in the concentration range as that corresponding to the stoichiometric composition of the compound. The viscosity increases due to an increase in the binding forces and the formation of structural units with directional bonds.…”

Section: Liquid Statementioning

confidence: 93%

Nonideal behavior in liquid metal solutions. 2. Chemical-physical theory model

Stoicos¹,

Eckert²

1985

Ind. Eng. Chem. Fund.

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The "physical" model developed in part 1 is coupled with a "chemical" model to account for the very strong negative deviations from Raoult's law In systems forming intermetallic compounds. The resulting chemical-physical model represents well both Gibbs energies and enthalpies of highly solvated metal systems. New data are presented for two titanium systems, for which only a limited composition range is experimentally accessible. The theory permits facile extension of such limited data.

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Über die Eigenschaften metallischer Schmelzen

Cited by 6 publications

References 0 publications

Molar and excess volumes of liquid indium-antimony, magnesium-antimony, and lead-antimony alloys

Molar and excess volumes of liquid indium-antimony, magnesium-antimony, and lead-antimony alloys

Rate of Solution of Rotating Tantalum Disks in Liquid Tin

Nonideal behavior in liquid metal solutions. 2. Chemical-physical theory model

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