Cross-poling Textures in a Lead Zirconate Titanate Piezoelectric Material

2000 ◽  
Vol 15 (6) ◽  
pp. 1248-1249 ◽  
Author(s):  
Shan Wan ◽  
Keith J. Bowman

Tetragonal ferroelectric materials are polarized to induce the anisotropy necessary for the piezoelectric effect. This poling of the material is inherently an orientation process. Pole figure texture measurements of poling and cross-poling in a lead zirconate titanate Navy VI material show domain motion. The resulting axisymmetric and three-dimensional textures demonstrate the contribution of 90° domain motion to piezoelectricity. Cross-poling results in strong orientations with lower applied fields than in the initial poling steps.

2007 ◽  
Vol 102 (2) ◽  
pp. 024111 ◽  
Author(s):  
Ralf Theissmann ◽  
Ljubomira A. Schmitt ◽  
Jens Kling ◽  
Roland Schierholz ◽  
Kristin A. Schönau ◽  
...  

RSC Advances ◽  
2018 ◽  
Vol 8 (15) ◽  
pp. 7916-7923 ◽  
Author(s):  
Chunmei Zhang ◽  
Yujie Chen ◽  
Hua Li ◽  
Wenchao Xue ◽  
Ran Tian ◽  
...  

Using three-dimensional graphene foam as the conductive phase, the temperature range where tan δ > 0.3 for a piezo-damping PGPP composite is broadened to −70 to 100 °C.


Polymers ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 977 ◽  
Author(s):  
Chunmei Zhang ◽  
Yuchao Li ◽  
Yanhu Zhan ◽  
Qian Xie

A novel lead zirconate titanate@polypyrrole (PZT@PPy) aerogel (PPA) was fabricated via in-situ polymerization and subsequent freeze-drying method. The porous PPA was then saturated with epoxy resin to obtain the PPA/epoxy composite (PPAE) by a simple vacuum filling method. In this way, the filler content and dispersion uniformity are well guaranteed, which is in favor of improving the damping and mechanical properties of composites. The morphology and structure of PPAs were investigated using XRD, SEM, EDS and nitrogen absorption and desorption measurements. The results showed that the PPA possessed a three-dimensional porous structure with uniform lead zirconate titanate (PZT) distribution. The influence of PZT content on the damping property of PPAE composite was investigated by dynamic mechanical analysis (DMA). PPAE-75 (i.e., the mass ratio of PZT to PPy is 75 wt %) exhibited the maximum damping loss factor value, 360% higher than that of the epoxy matrix, suggesting good structural damping performance.


2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Iñigo Bretos ◽  
Ricardo Jiménez ◽  
Monika Tomczyk ◽  
Enrique Rodríguez-Castellón ◽  
Paula M. Vilarinho ◽  
...  

Abstract Applications of ferroelectric materials in modern microelectronics will be greatly encouraged if the thermal incompatibility between inorganic ferroelectrics and semiconductor devices is overcome. Here, solution-processable layers of the most commercial ferroelectric compound ─ morphotrophic phase boundary lead zirconate titanate, namely Pb(Zr0.52Ti0.48)O3 (PZT) ─ are grown on silicon substrates at temperatures well below the standard CMOS process of semiconductor technology. The method, potentially transferable to a broader range of Zr:Ti ratios, is based on the addition of crystalline nanoseeds to photosensitive solutions of PZT resulting in perovskite crystallization from only 350 °C after the enhanced decomposition of metal precursors in the films by UV irradiation. A remanent polarization of 10.0 μC cm−2 is obtained for these films that is in the order of the switching charge densities demanded for FeRAM devices. Also, a dielectric constant of ~90 is measured at zero voltage which exceeds that of current single-oxide candidates for capacitance applications. The multifunctionality of the films is additionally demonstrated by their pyroelectric and piezoelectric performance. The potential integration of PZT layers at such low fabrication temperatures may redefine the concept design of classical microelectronic devices, besides allowing inorganic ferroelectrics to enter the scene of the emerging large-area, flexible electronics.


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