Improved temperature stability of CaTiO3-modified [(K0.5Na0.5)0.96Li0.04](Nb0.91Sb0.05Ta0.04)O3 lead-free piezoelectric ceramics

• DOI: 10.1063/1.2956390
• Publication Date: 2008-07-18T00:39:27Z
• Authors: Jiagang Wu; Dingquan Xiao; Yuanyu Wang; Wenjuan Wu; Bin Zhang; Jianguo Zhu
• Keywords: Poling; Lead (geology)

The CaTiO3-modified [(K0.5Na0.5)0.96Li0.04](Nb0.91Sb0.05Ta0.04)O3 lead-free piezoelectric ceramics were prepared using normal sintering for improving the temperature stability of (K0.5Na0.5)NbO3-based ceramics. effects CaTiO3 on and properties systematically studied. These results show that possess good in polymorphic phase transition below room temperature, also exhibit high (d33=263 pC/N kp=50%) when poled at an optimum poling temperature. indicate ceramic is a promising candidate material