Controlled synthesis of α-Al2O3 via the hydrothermal-pyrolysis method

Abstract

Taking aluminum sulfate and urea as the raw materials produce α-Al2O3 by employing the hydrothermal-pyrolysis method. The study analyzes the characterization of the products by XRD and SEM, The results indicate as follows: after 6 hours' hydrothermal reaction in the 120°C water, with the aluminum sulfate and urea as the raw materials, spherical α-Al2O3 can be obtained through calcination at 1200°C.