Effect of Nanometer-Sized B Powder on Phase Formation of Polycrystalline MgB2
AN Ling,CHENG Chinping,WANG Bo,ZHUANG Chenggang,LI Xingguo,ZHOU Zengjun,FENG Qingrong
Acta Scientiarum Naturalium Universitatis Pekinensis . 2006, (3): 361 -365 .