Broad-band and high-temperature ultrasonic transducer fabricated using a Pb(In1/2Nb1/2)-Pb(Mg1/3Nb2/3)-PbTiO3 single crystal/epoxy 1-3 composite

Zhou, Dan; Cheung, Kwok Fung; Lam, Kwok Ho; Chen, Yan; Chiu, Yat Ching; Dai, Jiyan; Chan, Helen Lai Wa; Luo, Haosu
May 2011
Review of Scientific Instruments;May2011, Vol. 82 Issue 5, p055110
Academic Journal
In this paper, 1-3 composites based on Pb(In1/2Nb1/2)-Pb(Mg1/3Nb2/3)-PbTiO3 (PIMNT) single crystal and high-temperature epoxy were fabricated with various volume fractions of PIMNT single crystal ranging from 0.4 to 0.9. The electrical properties were studied as functions of PIMNT volume fraction and temperature, and it revealed that the nature of ultrahigh electromechanical coupling coefficient (0.82-0.93) and low acoustic impedance (17-19 MRayl) of the composites can be retained within a wide temperature range from room temperature to 185 °C. Single element ultrasonic transducer using the PIMNT 1-3 composite was fabricated and characterized as a function of temperature. It was found that the transducer can still work normally at high temperatures, such as 165 °C, possessing a bandwidth of 95% and insertion loss of -27 dB.


Related Articles

  • Preparation and electrical properties of fine-scale 1–3 lead zirconic titanate/epoxy composite thick films for high-frequency ultrasonic transducers. Yuhua Zhen; Jing-Feng Li // Journal of Applied Physics;Apr2008, Vol. 103 Issue 8, p084119 

    1–3 connectivity lead zirconic titanate (PZT)/epoxy composite thick films containing fine-scale and high aspect ratio PZT pillars (40 μm sectional width, 40 μm spacing, and 5.5 aspect ratio) were obtained by a modified dice and fill method. The composite thick film works at a high...

  • Electrical and Thermal Properties of Twin-Screw Extruded Multiwalled Carbon Nanotube/Epoxy Composites. Karippal, Jeena; Narasimha Murthy, H.; Rai, K.; Krishna, M.; Sreejith, M. // Journal of Materials Engineering & Performance;Nov2010, Vol. 19 Issue 8, p1143 

    This paper presents the experimental results of dispersing multiwalled carbon nanotubes (MWNTs) into epoxy (space grade structural adhesive) nanocomposites using co-rotating twin screw extrusion process. Two sets of specimens were prepared; set 1 with ultrasonication for predispersing MWNT...

  • Thermal Response of Composite Materials to Elevated Temperatures. Lattimer, Brian Y.; Ouellette, Jason; Trelles, Javier // Fire Technology;Oct2011, Vol. 47 Issue 4, p823 

    Different decomposition models of varying complexity were developed to predict the heat and mass transfer through charring/reinforced materials that are undergoing decomposition. Models included a heat conduction based model, decomposition model neglecting internal pyrolysis gas convection, and...

  • An electromagnetic model of a piezoelectric transducer. Barkhatov, V. // Russian Journal of Nondestructive Testing;Aug2011, Vol. 47 Issue 8, p501 

    A one-dimensional electromechanical model of a piezoelectric transducer, which reproduces excitation of ultrasonic pulses in a product, reception of echo signals, and calculation of waves in all its elements (damper, protector, piezoelectric element, contact-liquid layer, etc.), is considered....

  • Uniform Fe3O4—PANi/PS composite spheres with conductive and magnetic properties and their hollow spheres. Saide Tang; Jing Liu; Ziqiong He; Lijuan An; Chenxi Zhang; Jingmei Hao; Wei Feng // Journal of Nanoparticle Research;May2009, Vol. 11 Issue 4, p923 

    Abstract  Core–shell multifunctional composite spheres consisting of Fe3O4–polyaniline (PANi) shell and polystyrene (PS) core were fabricated using core–shell-structured sulfonated PS spheres (with uniform diameter of 250 nm) as templates. PANi was doped in situ...

  • Effective dielectric constant of random composite materials. Sareni, B.; Krahenbuhl, L. // Journal of Applied Physics;3/1/1997, Vol. 81 Issue 5, p2375 

    Investigates the effective dielectric constant of random composite materials. Spatially fixed inhomogeneities of permittivity; Analysis of orientation dependence; Effect of the components geometry on dielectric properties.

  • Ac conduction in conducting poly pyrrole-poly vinyl methyl ether polymer composite materials. Saha, S.K.; Mandal, T.K. // Journal of Applied Physics;3/15/1997, Vol. 81 Issue 6, p2646 

    Reports that composite materials containing conducting polypyrrole and insulating poly (vinyl methyl ether) (PVME) have been synthesized by oxidative polymerization of pyrrole in ethanol using FeCl3 oxidant in the presence of PVME. Preparation of the sample; Measurement of the ac conductivity.

  • ULTRASONIC CRACK MONITORING ATHIGH TEMPERATURES USING SH WAVES (>500° C). Cegla, F. B.; Davies, J. O. // AIP Conference Proceedings;2/22/2010, Vol. 1211 Issue 1, p980 

    The development of shear horizontal (SH) wave transducers that can work at high temperatures (>500° C) has opened up the possibility to carry out ultrasonic monitoring using SH waves at elevated temperatures on running plants. The deployment of such monitoring devices can provide substantial...

  • HYBRID NON-CONTACT GUIDED WAVE TOMOGRAPHY FOR IMAGING OF DEFECTS IN PLATE-LIKE STRUCTURE USING A PROBABILISTIC ALGORITHM. Albiruni, Farabirazy; Jaesun Lee; Younho Cho; Joon-Hyun Lee; Bong-Young Ahn // AIP Conference Proceedings;2/22/2010, Vol. 1211 Issue 1, p758 

    A hybrid non-contact testing with laser generated ultrasonic transmitter and an air-coupled transducer is very attractive technique in guided wave inspection. It can be used for online inspection and structural health monitoring (SHM) where contact method using embedded sparse sensors can not be...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics