| 摘 要： | The crystal intrinsic orientation effect on the piezoelectric response of multi-domain 0.26Pb(In_(1/2)Nb_(1/2))O_3–0.46Pb(Mg_(1/3)Nb_(2/3))O_3– 0.28PbTiO_3(PIN-PMN-0.28PT) crystals was investigated by coordinate transformation method. The results indicate that crystal intrinsic orientation effect plays a crucial role in determining the piezoelectric properties of multi-domain crystals. Almost 58% and 69% of the transverse piezoelectric coefficients d31 and d32, respectively, and 67% longitudinal piezoelectric coefficient d33 of multidomain PIN-PMN-0.28 PT crystals poled along [011]c originate from crystal intrinsic orientation effect. For [001]c poled multi-domain PIN-PMN-0.28 PT crystals, intrinsic orientation effect contributes to the transverse and longitudinal piezoelectric coefficient at least 79% and 74%, respectively.
|
