Abstract

The AlN-Al 2O 3 system has been reassessed due to new experimental data published in particular near the Al 2O 3 rich part and relative to the φ′ and δ phases. The Gibbs energy of formation of the solution and compound phases in the AlN-Al 2O 3 binary section were derived from an optimisation procedure using all the available experimental thermodynamic and phase diagram data. The thermodynamic description of the ordered compounds was made using the sub-lattice model, while a Redlich-Kister polynomial was used for the solution phases.

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