A
Adel Megriche
Researcher at Tunis University
Publications - 41
Citations - 732
Adel Megriche is an academic researcher from Tunis University. The author has contributed to research in topics: Dielectric & Ceramic. The author has an hindex of 13, co-authored 32 publications receiving 556 citations. Previous affiliations of Adel Megriche include Institut national des sciences Appliquées de Lyon & Intelligence and National Security Alliance.
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Materials of Bi4Ti3O12 type for high temperature acoustic piezo-sensors
TL;DR: In this paper, a W6+ ion substitution and an addition of a small amount of Cr2O3 was used to improve the piezoelectric properties of bismuth titanate Ceramics.
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Comparative studies of pure, Sr-doped, Ni-doped and co-doped CaCu3Ti4O12 ceramics: Enhancement of dielectric properties
Salam Rhouma,Salam Rhouma,Senda Said,Cécile Autret,Sonia De Almeida-Didry,Mohamed El Amrani,Adel Megriche +6 more
TL;DR: In this paper, it was found that the substitution of Sr 2+ and/or Ni 2+ on Ca and Cu sites respectively increase the grain size of CaCu 3 Ti 4 O 12 ceramics.
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Structural and magnetic properties of nano-sized NiCuZn ferrites synthesized by co-precipitation method with ultrasound irradiation
Hassen Harzali,Fairouz Saida,Arij Marzouki,Adel Megriche,Fabien Baillon,Fabienne Espitalier,Arbi Mgaidi +6 more
TL;DR: In this article, a suspension of constituent hydroxides was irradiated for various times at different temperatures with high intensity ultrasound radiation using a direct immersion titanium horn and the results showed the formation of nanocrystalline single-phase structure with particle size 10−25nm.
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Structural, magnetic and optical properties of nanosized Ni0.4Cu0.2Zn0.4R0.05Fe1.95O4 (R = Eu3+, Sm3+, Gd3+ and Pr3+) ferrites synthesized by co-precipitation method with ultrasound irradiation
TL;DR: In this article, a co-precipitation method coupled with ultrasound irradiation can lower the crystallite size (15-18nm) and favors in getting a single spinel phase, which is characterized by different techniques: X-ray diffraction (XRD), Energy Dispersive Spectrometry (EDS), Fourier transform spectroscopy (FTIR), vibrating sample magnetometry (VSM) and photoluminescence (PL) emissions.
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Effect of B2O3 addition on optical and structural properties of TiO2 as a new blocking layer for multiple dye sensitive solar cell application (DSSC)
Wassila Saidi,Nasreddine Hfaidh,Mohammed Rasheed,Mihaela Girtan,Adel Megriche,Mohamed El Maaoui +5 more
TL;DR: In this paper, the influence of B2O3 dopant on the optical properties was examined by UV-visible spectroscopy and spectroscopic ellipsometry, and the extinction coefficient and optical band gap were extracted by fitting ellipsometric spectra with the double new amorphous model.