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Thermodynamic Assessment of the Gallium - Nitrogen System



Albert Davydov, William J. Boettinger, Ursula R. Kattner, T J. Anderson


Thermochemical and phase diagram data for the Ga-N system were assessed by employing the CALPHAD method. A consistent model representation of available thermodynamic properties agrees well with the critically evaluated experimental data. Thermodynamic extrapolation/interpolation of these data was applied to estimate the sublimation and melting characteristics of the GaN compound: at atmospheric pressure of nitrogen, gallium nitride sublimates incongruently by decomposing into nitrogen-rich gas and gallium-rich liquid, but can melt congruently at high nitrogen pressure (~4.9 GPa).
Physica Status Solidi A-Applications and Materials Science
No. 1


assessment Ga-N, phase diagram, semiconductors


Davydov, A. , Boettinger, W. , Kattner, U. and Anderson, T. (2001), Thermodynamic Assessment of the Gallium - Nitrogen System, Physica Status Solidi A-Applications and Materials Science (Accessed June 24, 2024)


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Created November 1, 2001, Updated February 17, 2017