Piezoelectric Composite Panels for Underwater Acoustic Control

1995 ◽  
Author(s):  
Richard L. Gentilman ◽  
Leslie J. Bowen ◽  
Robert D. Corsaro ◽  
Brian H. Houston
Keyword(s):  
Lead Zirconate Titanate ◽  
Active Surface ◽  
Lead Zirconate ◽  
Piezoelectric Composite ◽  
Naval Research ◽  
Large Area ◽  
Sensor Actuator ◽  
Surface Control ◽  
Acoustic Control ◽  
Good Agreement

Abstract Large area 1–3 composite piezoelectric transducer panels have been produced by Materials Systems Inc. (MSI). These SonoPanels™ measure 250 × 250 mm and have excellent response as underwater actuators as well as sensors. Piezocomposite panel manufacturing has been facilitated by an injection molding technology for fabricating net-shape lead zirconate titanate (PZT) ceramic preforms. An array of fifteen 250 × 250 mm 1–3 composite actuator panels, integrated with surface mounted pressure and velocity sensors, has been attached to a steel backing structure. The array has been evaluated for underwater active surface control applications at the Naval Research Laboratory. Sensor-actuator coupling was investigated, with good agreement between calculated and measured performance.

scholarly journals Negative Pressure Waves Based High Resolution Leakage Localization Method Using Piezoceramic Transducers and Multiple Temporal Convolutions

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 1990 ◽  
Author(s):  
Guangmin Zhang ◽  
Siu Chun Michael Ho ◽  
Linsheng Huo ◽  
Junxiao Zhu
Keyword(s):  
High Resolution ◽  
Lead Zirconate Titanate ◽  
Negative Pressure ◽  
Lead Zirconate ◽  
Signal Duration ◽  
Leakage Detection ◽  
Localization Algorithm ◽  
Large Area ◽  
Leakage Area ◽  
Better Than

The negative pressure wave (NPW) signals generated by a pipeline leakage often have a long signal duration. When these signals are utilized to compute the leakage position, the long signal duration will result in a large area being considered as leakage area. The localization resolution is low. A novel high-resolution localization algorithm is developed for pipeline leakage detection using piezoceramic transducers in this paper. The proposed algorithm utilizes multiple temporal convolutions to decrease the localization functional values at the points close to the leakage, in order to reduce the range of the leakage area revealed by the proposed algorithm. As a result, the localization resolution is improved. A measured experiment was conducted to study the proposed algorithm. In the experiment, the proposed algorithm was used to monitor a 55.8 m pressurized pipeline with two controllable valves and two Lead Zirconate Titanate (PZT) sensors. With the aid of the piezoceramic sensor, the experimental results show that the proposed algorithm results in a resolution which is better than that of the traditional method.

A Novel Method to Attenuate Protein Adsorption Using Combinations of Polyethylene Glycol (PEG) Grafts and Piezoelectric Actuation

2010 ◽  
Vol 1 (4) ◽  
Author(s):  
Po-Ying Yeh ◽  
Jayachandran N. Kizhakkedathu ◽  
Mu Chiao
Keyword(s):  
Polyethylene Glycol ◽  
Protein Adsorption ◽  
Lead Zirconate Titanate ◽  
Photoelectron Spectroscopy ◽  
Theoretical Calculations ◽  
Lead Zirconate ◽  
Piezoelectric Composite ◽  
Coated Surfaces ◽  
Bsa Adsorption

An antifouling treatment based on the combined effects of grafted polyethylene glycol (PEG) polymers and the application of vibration is reported. A gold-coated lead zirconate titanate piezoelectric composite was grafted with PEG used as a model substrate. The PEG grafted surfaces were thoroughly characterized by attenuated total reflectance-Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy. In vitro protein adsorption onto PEG coated surfaces was studied with and without the application of vibration. Bovine serum albumin (BSA) adsorption onto PEG grafted surfaces followed a similar pattern as reported in literature. However, when piezoelectric vibration was applied on the PEG grafted surface, BSA desorption was observed. At very low graft densities, the vibration significantly reduced the BSA adsorption compared with high PEG graft densities. Theoretical calculations showed that the thickness of PEG layer on the surface was affecting vibration induced protein desorption.

Lead zirconate titanate aerogel piezoelectric composite designed with biomimetic shell structure for underwater acoustic transducers

2021 ◽  
Author(s):  
Xin Long ◽  
Xiongbang Wei ◽  
Yuhong Qiu ◽  
Ming Jiang ◽  
Zhi Chen ◽  
...  
Keyword(s):  
Lead Zirconate Titanate ◽  
Shell Structure ◽  
Raw Materials ◽  
Composite Coatings ◽  
Sol Gel ◽  
Lead Zirconate ◽  
Piezoelectric Composite ◽  
Gel Method ◽  
Acoustic Transducers ◽  
Zirconate Titanate

In this research, we used lead zirconate titanate (PZT) aerogels prepared by solvothermal assisted sol-gel method as raw materials, and prepared PZT aerogel/PVDF composite coatings and PZT aerogel sintered sheets...

scholarly journals Mechanical properties and connectivity evaluation of a conductive coated piezoceramic/polymer composite

2014 ◽  
Vol 04 (03) ◽  
pp. 1450019 ◽  
Author(s):  
Gilberto de Campos Fuzari ◽  
Walter Katsumi Sakamoto
Keyword(s):  
Lead Zirconate Titanate ◽  
Polyvinylidene Fluoride ◽  
Volume Fraction ◽  
Composite Films ◽  
Lead Zirconate ◽  
Mechanical Tests ◽  
Piezoelectric Composite ◽  
Mechanical Resistance ◽  
Dielectric Measurements ◽  
Pvdf Matrix

In the present work, piezoelectric composite films made of Polyaniline (PAni) coated Lead Zirconate Titanate (PZT) particles immersed into polyvinylidene fluoride (PVDF) matrix were characterized by mechanical tests, and the connectivity of the composite sample was determined using dielectric measurements and applying the Poon–Shin model. The composite was considered a binary system with coated PZT particles as one phase and the polymer matrix the other one. To support the result obtained from theoretical analysis, scanning electron microscopy of the composites were done. It was observed a decrease up to 85% on the mechanical resistance when the ceramic volume fraction increases from 0% to 40%. Furthermore, the composite film no longer can be considered with 0–3 connectivity when the ceramic content is 30 vol.% or over.

scholarly journals Magnetodielectric properties of ferrite-piezoelectric composite materials.

2021 ◽  
Vol 2021 (10) ◽  
Author(s):  
Yu.A. Lupitskaya ◽  
◽  
E.M. Filonenko ◽  
P.E. Romazev ◽  
◽  
...  
Keyword(s):  
Composite Materials ◽  
Lead Zirconate Titanate ◽  
Ceramic Composite ◽  
Lead Zirconate ◽  
Piezoelectric Composite ◽  
Entire Concentration Range ◽  
Physicochemical Methods ◽  
System 1 ◽  
Different Content ◽  
Frequency Dependences

Ceramic composite materials based on compounds of lead zirconate-titanate and cobalt ferrite with different content of the initial components mass fraction have been synthesized. Using a complex of physicochemical methods, the microstructure and magnetodielectric properties of the synthesized ceramics have been studied. The resulting frequency dependences of the magneto-dielectric coefficient for the composite system (1-x)PZT + xCF(0.0 ≤ x ≤ 0.5) in an external magnetic field have a resonance form in the entire concentration range investigated. The largest changes in the value of the complex permittivity are observed for the sample with the composition of 0.6PZT + 0.4CF.

scholarly journals Synthesis, Microstructure and Properties of Magnetron Sputtered Lead Zirconate Titanate (PZT) Thin Film Coatings

Coatings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 944
Author(s):  
Youcao Ma ◽  
Jian Song ◽  
Xubo Wang ◽  
Yue Liu ◽  
Jia Zhou
Keyword(s):  
Thin Films ◽  
Magnetron Sputtering ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Influential Factors ◽  
Mems Devices ◽  
Large Area ◽  
Pzt Thin Films ◽  
Synthesis Parameters ◽  
Zirconate Titanate

Compared to aluminum nitride (AlN) with simple stoichiometry, lead zirconate titanate thin films (PZT) are the other promising candidate in advanced micro-electro-mechanical system (MEMS) devices due to their excellent piezoelectric and dielectric properties. The fabrication of PZT thin films with a large area is challenging but in urgent demand. Therefore, it is necessary to establish the relationships between synthesis parameters and specific properties. Compared to sol-gel and pulsed laser deposition techniques, this review highlights a magnetron sputtering technique owing to its high feasibility and controllability. In this review, we survey the microstructural characteristics of PZT thin films, as well as synthesis parameters (such as substrate, deposition temperature, gas atmosphere, and annealing temperature, etc.) and functional proper-ties (such as dielectric, piezoelectric, and ferroelectric, etc). The dependence of these influential factors is particularly emphasized in this review, which could provide experimental guidance for researchers to acquire PZT thin films with expected properties by a magnetron sputtering technique.

Flexible and Large-Area Nanocomposite Generators Based on Lead Zirconate Titanate Particles and Carbon Nanotubes

2013 ◽  
Vol 3 (12) ◽  
pp. 1539-1544 ◽  
Author(s):  
Kwi-Il Park ◽  
Chang Kyu Jeong ◽  
Jungho Ryu ◽  
Geon-Tae Hwang ◽  
Keon Jae Lee
Keyword(s):  
Carbon Nanotubes ◽  
Lead Zirconate Titanate ◽  
Lead Zirconate ◽  
Large Area ◽  
Zirconate Titanate

scholarly journals Active layers of high-performance lead zirconate titanate at temperatures compatible with silicon nano- and microelectronic devices

2016 ◽  
Vol 6 (1) ◽  
Author(s):  
Iñigo Bretos ◽  
Ricardo Jiménez ◽  
Monika Tomczyk ◽  
Enrique Rodríguez-Castellón ◽  
Paula M. Vilarinho ◽  
...  
Keyword(s):  
Lead Zirconate Titanate ◽  
Flexible Electronics ◽  
High Performance ◽  
Lead Zirconate ◽  
Ferroelectric Materials ◽  
Cmos Process ◽  
Concept Design ◽  
Large Area ◽  
Microelectronic Devices ◽  
Zirconate Titanate

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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