Corundum

• Al-O
• Al-Cr-O
• Al-Ca-O
• Al-Mg-O
• Al-O-Y-Zr
• phase transitions
• phase diagram
• structural properties
• thermal and thermodynamic properties
• corundum
• oxide
• chalcogen
• non-disordered
• disordered
• trigonal
• cubic
• monoclinic
• hexagonal
• orthorhombic