| 摘要 |
The disclosed invention relates to piezoelectric rare earth doped Pb(Zr,Ti)O3-Pb(Mn,Sb)O3 compounds including (zPb(ZrwTi(1-w))O3-(1-z)Pb(Mn1/3Sb2/3)O3+REx) where z is <=0.95, 0.40<w<0.60, and where RE is a rare earth cation dopant, and 0<x<5.0%. The doped compounds have both improved Qm and (k). The RE dopants employed advantageously generate both "hardening" and "softening" effects in doped Pb(Zr,Ti)O3-Pb(Mn,Sb)O3 compounds. The RE doped Pb(Zr,Ti)O3-Pb(Mn,Sb)O3 compounds have advantageously high vibrational velocity compared to pure Pb(Zr,Ti)O3-Pb(Mn,Sb)O3 compounds and commercialized hard PZT. The disclosed invention also relates to piezoelectric devices which include the doped piezoelectric ceramic compounds.
|
