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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Oleary, Richard
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (26/26 displayed)
- 2021Fabrication and characterization of a novel photoactive based (0-3) piezocomposite material with potential as a functional material for additive manufacturing of piezoelectric sensorscitations
- 2020Characterization of (0-3) piezocomposite materials for transducer applicationscitations
- 2019Developing a 3D printable electret material for sensing applications
- 2018Linear ultrasonic array design using cantor set fractal geometrycitations
- 2018Broadband 1-3 piezoelectric composite transducer design using Sierpinski Gasket fractal geometrycitations
- 2018Broadband piezocrystal transducer array for non-destructive evaluation imaging applicationscitations
- 2017Linear ultrasonic array incorporating a Cantor Set fractal element configuration
- 2016Improving the operational bandwidth of a 1-3 piezoelectric composite transducer using Sierpinski Gasket fractal geometry
- 2015An investigation in to the effects of recycling of Ti-6Al-4V powders used within selective laser melting
- 2015System modeling and device development for passive acoustic monitoring of a particulate-liquid processcitations
- 2015Accurate finite element model of equiaxed-grain engineering material for ultrasonic inspection
- 2014Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging applicationcitations
- 2012High intensity focused ultrasound array transducers using 2-2 stacked piezoelectric composite appropriate for sonochemisrty applicationcitations
- 2012Ultrasonic imaging of electrofusion welded polythene pipes employed in utilities industry
- 2010An annular array with fiber composite microstructure for far field NDT imaging applicationscitations
- 2010Properties of photocured epoxy resin materials for application in piezoelectric ultrasonic transducer matching layerscitations
- 2010Hexagonal array structure for 2D NDE applicationscitations
- 2010A wideband annular piezoelectric composite transducer configuration with a graded active layer profilecitations
- 2009Numerical optimisation of piezocomposite material properties using 3D finite - element modeling
- 2009The causal differential scattering approach to calculating the effective properties of random composite materials with a particle size distribution
- 2008Harmonic analysis of lossy piezoelectric composite transducers using the plane wave expansion methodcitations
- 2008Analysis of ultrasonic transducers with fractal architecturecitations
- 2008Enhancing the performance of piezoelectric ultrasound transducers by the use of multiple matching layerscitations
- 2007Simulation of the influence of hydrophones used for the characterization of pressure field distribution in low frequency, high power ultrasonic reactor vesselscitations
- 2007Investigating the influence of the constituent materials on the performance of periodic piezoelectric composite arrayscitations
- 2007Theoretical modelling of frequency dependent elastic loss in composite piezoelectric transducerscitations
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article
Properties of photocured epoxy resin materials for application in piezoelectric ultrasonic transducer matching layers
Abstract
This paper describes the acoustic properties of a range of epoxy resins prepared by photocuring that are suitable for application in piezoelectric ultrasonic transducer matching layers. Materials, based on blends of diglycidyl ether of Bisphenol A and 1,4-cyclohexanedimethanol diglycidyl ether, are described. Furthermore, in order to vary the elastic character of the base resin, samples containing polymer microspheres or barium sulfate particles are also described. The acoustic properties of the materials are determined by a liquid coupled through transmission methodology, capable of determining the velocity and attenuation of longitudinal and shear waves propagating in an isotropic layer. Measured acoustic properties are reported which demonstrate materials with specific acoustic impedance varying in the range 0.88–6.25 MRayls. In the samples comprising blends of resin types, a linear variation in the acoustic velocities and density was observed. In the barium sulfate filled samples, acoustic impedance showed an approximately linear variation with composition, reflecting the dominance of the density variation. While such variations can be predicted by simple mixing laws, relaxation and scattering effects influence the attenuation in both the blended and filled resins. These phenomena are discussed with reference to dynamic mechanical thermal analysis and differential scanning calorimetry of the samples.