“…Alumina (Al 2 O 3 ) is an important material used in a wide range of applications, including refractories, structural materials, electronic packaging, catalysts, and sensors. Alumina precursors, depending on the starting materials, processing route, presence of impurities, and heating conditions, undergo a variety of transitions until the most stable structure (α-Al 2 O 3 ) is formed at high temperature (Bahlawane and Watanabe, 2000;Ebadzadehw and Sharifi, 2008). Alumina has many useful properties such as high electrical resistivity, high temperature strength and chemical inertness.…”