Mn-modified (K 0.5 Na 0.5 ) 0.96 Sr 0.02 NbO3 Lead-free Piezoelectric Ceramics
LIU Tao,DING Ai-Li,HE Xi-Yun,ZHENG Xin-Sen,QIU Ping-Sun,CHENG Wen-Xiu
Journal of Inorganic Materials . 2007, (3): 469 -473 .  DOI: 10.3724/SP.J.1077.2007.00469