Author： Aragon E. Jardet K. Satre P. Sebaoun A.
Publisher： Springer Publishing Company
ISSN： 1388-6150
Source： Journal of Thermal Analysis and Calorimetry, Vol.53, Iss.3, 1998-09, pp. : 769-784
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Abstract
The Al-Zn-Ga ternary phase diagram was earlier established by thermodynamic modellization [1], but no experimental study appears to have been carried out on this system, except for measurements of mixing enthalpies in the liquid [2].The present experimental study was carried out by thermal analysis and X-ray diffraction at various temperatures, using the isopletic cuts method.Four isopletic cuts were established and two others were partly studied in the Al-rich corner of the diagram. On these cuts, two isobaric ternary invariant reactions were determined: a eutectic reaction at 23±1°C, and a metatectic reaction at 123±1°C. Evidence was found for the existence of a retrograde miscibility of Ga in a solid solution α′SS which protrudes into the ternary system starting from the Al-Zn binary up to a Ga concentration of about 30%*.
Related content
The Al—Zn—Ga Phase Diagram: Part II
By Aragon E. Jardet K. Satre P. Sebaoun A.
Journal of Thermal Analysis and Calorimetry, Vol. 53, Iss. 3, 1998-09 ,pp. :
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