High-frequency dispersion of ultrasonic velocity and attenuation of single- crystal 0.72 Pb„Mg1Õ3Nb2Õ3...O3 – 0.28 PbTiO3 with engineered domain structures
نویسندگان
چکیده
Using ultrasonic spectroscopy, the frequency dispersions of ultrasonic velocity and attenuation were measured for single crystal 0.72 Pb(Mg1/3Nb2/3)20.28 PbTiO3 (PMN228%PT! with engineered domain structures in the frequency range of 50–110 MHz. We found that the velocity dispersion and attenuation are very small for the longitudinal wave propagating along @001# of the pseudotetragonal state. Our results imply that the developed domain-engineered PMN-PT single crystals, which have extremely large d33 and k33 , have great potential for high-frequency applications. © 2002 American Institute of Physics. @DOI: 10.1063/1.1468265#
منابع مشابه
Direct observations of electric field-induced domain boundary cracking in Š001‹ oriented piezoelectric Pb„Mg1Õ3Nb2Õ3...O3–PbTiO3 single crystal
In situ transmission electron microscopy study of electric field-induced cracking has been conducted on ^001& oriented 0.65Pb~Mg1/3Nb2/3!O3 – 0.35PbTiO3 crystal. Fracture of the 90° domain boundary was directly observed in the tetragonal area under both static and alternating electric fields. The field strength required to induce domain boundary cracking was lower for alternating electric field...
متن کاملElastic, piezoelectric, and dielectric properties of multidomain 0.67Pb„Mg1Õ3Nb2Õ3...O3 – 0.33PbTiO3 single crystals
The elastic, piezoelectric, and dielectric constants of 0.67Pb~Mg1/3Nb2/3!O3–0.33PbTiO3 domain engineered single crystal were determined experimentally by using ultrasonic and resonance methods. It was confirmed that the single crystal system has large electromechanical coupling coefficient k33 ~;94%! and piezoelectric constant d33 ~;2800 pC/N! if the poling is done along the @001# of pseudocub...
متن کاملPb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 Piezoelectric Single-Crystal Rectangular Beams: Mode-Coupling Effect and Its Application to Ultrasonic Array Transducers
Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 (PIN–PMN–PT) piezoelectric single-crystal rectangular beams with the PIN:PMN:PT ratio of 0.33:0.35:0.32 are prepared, and their mode-coupling effect is investigated both theoretically and experimentally for ultrasonic array transducer applications. The PIN–PMN–PT rectangular beams become a tall-narrow beam and a short-wide plate, and so exhibiting an unc...
متن کاملElectric field effects on the phase transitions in †001‡-oriented „1Àx...Pb„Mg1Õ3Nb2Õ3...O3-xPbTiO3 single crystals with compositions near the morphotropic phase boundary
Dielectric behavior and phase transitions of @001# oriented (12x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 single crystals with x529, 31, 32, and 33 % were investigated by impedance measurements and high resolution x-ray diffraction analysis under various electrical and thermal conditions. Application of a bias field along @001# can shift down the Rhombohedral-Tetragonal structural phase transition, so that the...
متن کاملElectromechanical properties of fine-grain, 0.7 Pb(Mg(1/3)Nb(2/3))O3-0.3PbTiO3 ceramics.
A fine grain, relaxor-based piezoelectric ceramic 0.7 Pb(Mg(1/3)Nb(2/3))O3-0.3PbTiO3 (PMN-30% PT) has been investigated, which was fabricated using the columbite precursor method. The complete set of electromechanical properties of the piezoceramic at room temperature is determined using a combination of ultrasonic and resonance techniques. This fine-grain ceramic (grain size < or = 2.5 microm)...
متن کامل