Piezoelectric porcelain constituent null for actuator

摘要

PURPOSE: To produce a piezoelectric porcelain composition having a high strength. ;CONSTITUTION: This piezoelectric porcelain composition for actuator has a composition represented by the following formula: Pb_1-a-b-c-dLa_aP_bBa_cSr_d(Sr_xTi_1-x-y--zN_yM_z)O₃ [P is at least one or more of Pr, Nd and Sm; N is at least one or more of In, Fe, Co and Ga; M is at least one or more of Sb and Nb; 0.0025≤ a 0.010; 0.005≤ d ≤0.020; 0.010≤ c ≤0.025; 0.050≤ d ≤0.150; 0.540≤ x ≤0.560; 0.002≤ y ≤0.005; 0.005≤ z ≤0.030].;COPYRIGHT: (C)1996,JPO