Thermodynamic assessment and experimental study of the Al-Ag-Ga phase diagram

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Authors

PREMOVIC Milena BROŽ Pavel MINIC Dusko MANASIJEVIC Dragan ZIVKOVIC Dragana COSOVIC Vladan DORDEVIC Aleksandar

Year of publication 2016
Type Article in Periodical
Magazine / Source Thermochimica Acta
MU Faculty or unit

Central European Institute of Technology

Citation
Web http://www.sciencedirect.com/science/article/pii/S0040603116303057
Doi http://dx.doi.org/10.1016/j.tca.2016.11.005
Field Physical chemistry and theoretical chemistry
Keywords Ternary Al-Ag-Ga system; Differential thermal analysis (DTA); SEM-EDS analysis;Liquidus surface projection; X-ray powder diffraction
Description Ternary Al-Ag-Ga system was assessed both theoretically using thermodynamic calculations of phase equilibria based on CALPHAD method and experimentally using differential thermal analysis (DTA), scanning electron microscopy (SEM) combined with energy dispersive spectrometry (EDS) and X-ray powder diffraction (XRD) analysis. The calculated phase transition temperatures, isothermal sections at 300 and 500°C and liquidus surface projection were experimentally validated by experimental study of selected long-term annealed alloy samples with overall compositions along four vertical sections Al-Ag80Ga20,Al-Ag60Ga40, Ag-Al80Ga20 and Ag-Al60Ga40.
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