Study on Methods to Strenthen and Toughen Sapphire Crystal by Carbon Doped Grown by Temperature Gradient Technique (TGT)
HU Ke-Yan, XU Jun, TANG Hui-Li, LI Hong-Jun, ZOU Yu-Qi, YANG Qiu-Hong
Journal of Inorganic Materials . 2013, (3): 307 -311 .  DOI: 10.3724/SP.J.1077.2013.12149