Highlights
• Phase equilibria of the Ga–Zr system were investigated by experiment.
• Δ
f
Hs for intermetallic compounds were computed via
first–principles calculations.
• The enthalpy of formation at 298
K for αGaZr was measured by calorimetry.
• A set of self-consistent thermodynamic parameters was obtained.
Abstract
Phase equilibria of the Ga–Zr system were investigated by experiment and thermodynamic modeling. In the experimental part, eleven alloys were prepared by melting the pure elements and annealed. Both the as-cast and annealed samples were analyzed by X-ray diffraction, optical microscopy, and scanning electron microscope. The annealed alloys were investigated by differential thermal analysis and electron probe microanalysis. In order to assist the thermodynamic modeling, the enthalpies of formation at 0
K for the GaZr
2
, Ga
3
Zr
5
, Ga
2
Zr
3
, Ga
4
Zr
5
, αGaZr, Ga
3
Zr
2
, Ga
5
Zr
3
, Ga
2
Zr and Ga
3
Zr phases were computed via
first-principles calculations. The enthalpy of formation at 298
K for the αGaZr was measured by high temperature reaction calorimetry. Based on the experimental phase diagram data from the present work and the literature as well as the present first-principles calculations, the Ga–Zr system was critically assessed by means of CALPHAD approach. The calculated phase diagram and thermodynamic properties agree well with the available experimental data.
Page:
497-497
Related
Batch download
Cited By
noting
Similar Literature
Submit Feedback
Please wait while the file you selected is being converted