Srikanth, S and Jacob, KT (1991) Thermodynamics Of Aluminum Strontium Alloys. In: Zeitschrift für Metallkunde, 82 (9). pp. 675-683.
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The activity of strontium in liquid Al-Sr alloys (X(Sr) less-than-or-equal-to 0.17) at 1323 K has been determined using the Knudsen effusion-mass loss technique. At higher concentrations (X(Sr) greater-than-or-equal-to 0.28), the activity of strontium has been determined by the pseudoisopiestic technique. Activity of aluminium has been derived by Gibbs-Duhem integration. The concentration - concentration structure factor of Bhatia and Thornton at zero wave vector has been computed from the thermodynamic data. The behaviour of the mean square thermal fluctuation in composition and the thermodynamic mixing functions suggest association tendencies in the liquid state. The associated solution model with Al2Sr as the predominant complex can account for the properties of the liquid alloy. Thermodynamic data for the intermetallic compunds in the Al-Sr system have been derived using the phase diagram and the Gibbs' energy and enthalpy of mixing of liquid alloys. The data indicate the need for redetermination of the phase diagram near the strontium-rich corner.
| Item Type: | Journal Article |
|---|---|
| Publication: | Zeitschrift für Metallkunde |
| Publisher: | Carl Hanser Verlag |
| Additional Information: | Copyright of this article belongs to Carl Hanser Verlag. |
| Department/Centre: | Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy) |
| Date Deposited: | 07 Dec 2010 07:22 |
| Last Modified: | 23 Oct 2018 07:52 |
| URI: | http://eprints.iisc.ac.in/id/eprint/34250 |
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