Effects of Nano-Al Doping on Superconductivity and Microstructure of MgB2 Bulk Superconductors
GUO Fang-Fang,XU Zheng,XU Hong-Liang,FENG Yong
Journal of Inorganic Materials . 2007, (1): 133 -137 .  DOI: 10.3724/SP.J.1077.2007.00133