Thermodynamic properties of molten Na‐Te solutions Journal Articles

abstract

• AbstractThermodynamic properties of liquid Na‐Te solutions were measured over the range 0–52 at.% Na at temperatures between 573 and 873 K by means of alloy concentration cells. Beta alumina was used as the solid electrolyte. The following properties were derived from the emf data: ΔG, ΔH, ΔS, the excess heat capacity CE p and the excess stability, ES. The Gibbs energy, enthalpy and entropy showed marked negative deviations. The plot of excess stability versus composition exhibits a rather flat shoulder between 10 and 20 at.% Na and a broad maximum or shoulder near 50% Na indicating maximum short‐range ordering near these compositions. Liquidus and invariant points on the phase diagram as well as the Gibbs energies of formation of the solid compounds NaTe3, NaTe and Na2Te have also been determined.

authors

• Petric, Anthony
• Pelton, Arthur D
• Saboungi, Marie‐Louise

status

• published 

publication date

• January 1989

published in

• Berichte der Bunsengesellschaft/Physical Chemistry Chemical Physics  Journal

keywords

• Chemistry
• Chemistry, Physical
• Physical Sciences
• Science & Technology

Digital Object Identifier (DOI)

• 10.1002/bbpc.19890930105

start page

• 18

end page

• 24

volume

• 93

issue

• 1