Direct observations of electric field-induced domain boundary cracking in Š001‹ oriented piezoelectric Pb„Mg1Õ3Nb2Õ3...O3–PbTiO3 single crystal
نویسندگان
چکیده
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 than for static field. © 2000 American Institute of Physics. @S0003-6951~00!04636-2#
منابع مشابه
Poling field versus piezoelectric property for [001] c oriented 91%Pb(Zn1/3Nb2/3)O3-9%PbTiO3 single crystals.
Electromechanical property measurements and microstructure observations using optical microscopy were performed on a [001] c oriented k33 resonator made of 91%Pb(Zn1/3Nb2/3)O3-9%PbTiO3 single crystal, which was polarized under different electric fields. At room temperature, when the poling field is 1100 V/mm, the electromechanical coupling factor k33 is 0.90 and piezoelectric coefficient d33 is...
متن کاملIn situ Transmission Electron Microscopy Studies of Electric-field-induced Phenomena in Ferroelectrics
High electric fields were delivered to specimens during imaging in the transmission electron microscopy (TEM) chamber to reveal details of electric field-induced phenomena in ferroelectric oxides. These include the polarization switching in nanometer-sized ferroelectric domains and the grain boundary cavitation in a commercial lead zirconate titanate (PZT) polycrystalline ceramic, the domain wa...
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 کاملHigh-frequency dispersion of ultrasonic velocity and attenuation of single- crystal 0.72 Pb„Mg1Õ3Nb2Õ3...O3 – 0.28 PbTiO3 with engineered domain structures
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. Ou...
متن کاملGlory of piezoelectric perovskites
This article reviews the history of piezoelectric perovskites and forecasts future development trends, including Uchino's discoveries such as the Pb(Mg1/3Nb2/3)O3-PbTiO3 electrostrictor, Pb(Zn1/3Nb2/3)O3-PbTiO3 single crystal, (Pb, La)(Zr, Ti)O3 photostriction, and Pb(Zr, Ti)O3-Terfenol magnetoelectric composites. We discuss five key trends in the development of piezomaterials: performance to r...
متن کامل