Fig. 15

Optical micrographs of the single crystal Al2O3 (sapphire) grown via the SSCG method: a, b cross-section of single crystal sapphire grown from polycrystalline Al2O3; c translucent single crystal sapphire doped with MgO and SiO2 [81]

Optical micrographs of the single crystal Al2O3 (sapphire) grown via the SSCG method: a, b cross-section of single crystal sapphire grown from polycrystalline Al2O3; c translucent single crystal sapphire doped with MgO and SiO2 [81]