Mechanism of Phase Transformations of γ-Al_2O_3 and Al(OH)_3 into Boehmite (AlOOH) during Hydrothermal Treatment

摘要

We propose a mechanism capable of describing phase transformations during the hydrothermal treatment of micron- and nanometer-sized gamma-Al2O3 and Al(OH)(3) powders, identify the steps of the process, and demonstrate the role of water with a small heat of vaporization in the hydrothermal treatment process.