An Effect on the Structural, Electrical Characteristis of PZN-BT-PT Ceramics according to the Variations of $La_2O_3$ Additon Amount

$La_2O_3$의 첨가가 PZN-BT-PT 세라믹스의 구조적, 전기적 특성에 미치는 영향

In this study, the structural, dielectric and electrical properties of $0.85Pb(Zn_{1/3}Nb_{2/3})O_3-0.1BaTiO_3-0.05PbTiO_3$ ceramics were investigated with respect to the variations of $La_2O_3$ addition amount. The specimen with 0.2 [wt%] $La_2O_3$ addition amount, which has the coupling constants with the value of $k_p$=44.8[%]. $k_{31}$=25.4[%] and the piezoelectric constant with $d_{31}=100{\times}10^{-12}$[C/N] respectively, exhibits the relatively good values in the applications of electrostriction actuators.