Hamdi Ezzin
@unipr.it
Department of Engineering and Architecture - Parma
University of Parma
Dr. Hamdi Ezzin received his Ph.D. degree in Physics and Acoustics from the University of Sfax/Faculty of Science of Sfax in 2017. He is now an Assistant Researcher at Nanjing University of Aeronautics and Astronautics College of Aerospace Engineering. His research focused on acoustic wave behavior in complex solid structures such as piezoelectric, piezomagnetic, and magneto-electric materials
RESEARCH INTERESTS
Piezoelectricity, Wave Propagation, Vibration Analysis, MATLAB, Solid Mechanics.
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Hamdi Ezzin, Souhail Dahmen, Zhenghua Qian, Christ Glorieux, and Raj Das
Elsevier BV
Mohamed Mkaoir, Hamdi Ezzin, Hassiba Ketata, and Anouar Njeh
Springer Science and Business Media LLC
Andrey Smirnov, Vladimir Anisimkin, Natalia Voronova, Elizaveta Shamsutdinova, Peng Li, Hamdi Ezzin, Zhenghua Qian, Tingfeng Ma, and Iren Kuznetsova
MDPI AG
Using acoustic wave modes propagation in piezoelectric plates loaded with conductive liquids, peculiarities of the mode-liquid acoustoelectric interaction are studied. It is found that (i) in contrast to bulk and surface acoustic waves propagating in piezoelectric semiconductors, the acoustoelectric attenuation of the modes is not symmetric in respect to its maximum, (ii) a large increase in attenuation may be accompanied by a small decrease in phase velocity and vice versa, (iii) the peculiarities are valid for “pure” (without beam steering) and “not pure” (with beam steering) modes, as well as for modes of different orders and polarizations, and (iv) conductivity of test liquid increases electromagnetic leakage between input and output transducers, affecting results of the measurements. To decrease the leakage, the liquid should be localized between transducers, outside the zone over them. If so, the mode sensitivity may be as large as 8.6 dB/(S/m) for amplitude and 107°/(S/m) for phase. However, because of comparable cross-sensitivity towards viscosity and dielectric permittivity, modes with selective detection of liquid conductivity are not found.
Hamdi Ezzin, Raj Das, Zhenghua Qian, and Iren Kuznetsova
Elsevier BV
Hamdi Ezzin, Bin Wang, Z. Qian and M. Arefi
Hamdi Ezzin, Mohamed Mkaoir, M. Arefi, Z. Qian and R. Das
Hamdi Ezzin, Bin Wang, and Zhenghua Qian
Elsevier BV
Hamdi Ezzin, Mohamed Mkaoir, and Morched Ben Amor
Elsevier BV
Hamdi Ezzin, Morched Ben Amor and Mohamed Hédi Ben Ghozlen
Hamdi Ezzin, Morched Ben Amor, and Mohamed Hédi Ben Ghozlen
Springer Science and Business Media LLC
Hamdi Ezzin, Morched Ben Amor, and Mohamed Hédi Ben Ghozlen
Elsevier BV