Piezoelectric property of relaxor-PbTiO₃ crystals under uniaxial transverse stress

Advances in the Growth and Characterization of Relaxor-PT-Based Ferroelectric Single Crystals

“…Recent high field measurement also shows that <110>-poled relaxor-PT crystals may be more stable under the compressive prestress applied along their length (transverse compressive prestress). This study suggested that the transverse compressive prestress will help stabilize the poling state until the electric field becomes large enough to induce the reversible rhombohedral-to-tetragonal phase transition [85]. Figure 11 shows the bipolar strain behavior of Mn:PIN-PMN-PT rhombohedral crystals at 5 kV/cm AC field and various stress levels [85].…”

“…It is therefore important to determine not only the small signal characteristics, but also whether the materials maintain the bandwidth and linear performance under a high driving field and a prestress condition. In recent years, more studies have been done on relaxor-PT crystals, including PMN-PT, pure and Mn-doped PIN-PMN-PT crystals, under a combination of static compressive stress and high electric field [80][81][82][83][84][85][86]. The performance of relaxor-PT crystals under dynamic compressive stress has also been evaluated, but only under a small electric field [87,88].…”

“…This study suggested that the transverse compressive prestress will help stabilize the poling state until the electric field becomes large enough to induce the reversible rhombohedral-to-tetragonal phase transition [85]. Figure 11 shows the bipolar strain behavior of Mn:PIN-PMN-PT rhombohedral crystals at 5 kV/cm AC field and various stress levels [85]. It was found that all of the strain curves for the <110>-poled Mn:PIN-PMN-PT rhombohedra crystal are linear and non-hysteretic, demonstrating that no domain reversal occurs at 5 kV/cm.…”

“…Bipolar strain behavior for Mn:PIN-PMN-PT crystals under different prestress levels. Reprinted with permission from [85]. Copyright 2013 AIP Publishing.…”

Particle and Crystallite Size Characterisation of Lead Titanate Derived from Solid-state Reaction Method

“…Because of their character, ferroelectrics are widely used in many applications: the ferroelectric randomaccess memory field, pyroelectric infrared sensor, electro-optic devices, insulator gates in metal-insulator-semiconductor diodes, capacitors, transistor, piezoelectric actuators, high frequency ultrasonic transducers and so on. [19][20][21][22] The PbTiO 3 property within its applications depends on several aspects: the purity of materials indicated in stoichiometry number; and microstructure that consists of phase, particle's size and then crystallite's size. To obtain the stoichiometry, particle and crystallite size PbTiO 3 , different preparation methods have been introduced such as co-precipitation, emulsion or hydrothermal treatment sol-gel and spark plasma sintering sonochemical, besides the conventional solid-state reaction of mixed oxides or mechanical alloying.…”