Investigation of High-Power Properties of PIN-PMN-PT Relaxor-Based Ferroelectric Single Crystals and PZT-4 Piezoelectric Ceramics

• Published in: IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2020-08, Vol.67 (8), p.1641-1646
• Main Authors: Li, Guo, Tian, Fenghua, Gao, Xiangyu, Tian, Hao, Qiao, Liao, Liu, Jinfeng, Li, Fei, Xu, Zhuo
• Format: Article
• Language: English
• Subjects: (1-x-y)Pb(In₁/₂Nb₁/₂)O₃-yPb(Mg₁/₃Nb₂/₃) O₃-xPbTiO₃(PIN-PMN-PT); Ceramics; Coupling coefficients; Couplings; Crystals; Electric fields; Equivalent circuits; Ferroelectric materials; Ferroelectricity; high power; Impedance; Impedance method; Lead zirconate titanates; material coefficients; Mathematical analysis; Modulus of elasticity; Piezoelectric ceramics; Piezoelectric materials; piezoelectric single crystal; Piezoelectricity; Q factors; Relaxors; Resonance; Resonant frequency; Single crystals; Temperature measurement; Vibrators
• ISSN: 0885-3010; 1525-8955
• DOI: 10.1109/TUFFC.2020.2979217

We developed a high-power piezoelectric characterization system that was used to study the high-field properties of (1-x-y)Pb(In 1/2 Nb 1/2 )O 3 -yPb(Mg 1/3 Nb 2/3 ) O 3 -xPbTiO 3 (PIN-PMN-PT) relaxor ferroelectric single crystals and PZT-4 piezoelectric ceramics. The impedance spectrum of 31 modes was measured under constant voltage by the high-power piezoelectric system. From measuring the resonance and antiresonance frequencies, the high-field behaviors of the electromechanical coupling coefficients, elastic compliances, and piezoelectric coefficients of the PIN-PMN-PT crystals were determined and compared with commercial PZT ceramics. By fitting the equivalent circuit parameters under large electric fields, the mechanical quality factors of the PIN-PMN-PT single crystals and PZT-4 ceramics were calculated as well. The results showed that the mechanical quality factor of the PZT-4 is higher than that of PIN-PMN-PT, and the mechanical quality factors of the PZT-4 and PIN-PMN-PT both decrease sharply first and then decrease slowly with increasing the electric field. The tensile strengths of PIN-PMN-PT crystals and PZT-4 ceramics were also determined by the impedance method, where we found that the tensile strengths of PIN-PMN-PT crystal and PZT-4 ceramic were 19.6 and 76.4 MPa, respectively. The 31-mode vibrators of PIN-PMN-PT crystals and PZT-4 ceramics can be driven by the largest electric field of 33 and 65 V/mm under resonance frequency, respectively.