Publications

• Article dans une revue

Shear Piezoelectricity of Poly(L-lactide) Films Manufactured by Extrusion–Orientation: An Insight on Process–Structure–Property Relationships

Mohamed Aymen Ben Achour, Sophie Barrau, Jean-François Tahon, Mohamed Rguiti, Christian Courtois, Birgit Stubbe, Jean-Marie Raquez, Marie-France Lacrampe, Cédric Samuel

Shear piezoelectric properties of uniaxially stretched poly(l-lactide) (US-PLA) films manufactured by an industrially relevant technique (i.e., extrusion–orientation without poling) are investigated, and specific insight on the process–structure–properties relationships is provided. Two…

ACS Applied Polymer Materials, 2023, 5 (12), pp.9761 - 9775. ⟨10.1021/acsapm.3c01419⟩. ⟨hal-04323414⟩

• Article dans une revue

Effects of Reaction Parameters on the Geometry and Crystallinity of Hydrothermally Synthesized ZnO Nanorods for Bio-Fouling Applications

Abderrahmane Hamdi, Chin Sing Lim, Mohamed Aymen Ben Achour, Ali Ahmed Alshehri, Mervat Alamri, D. Deresmes, Serena Lay-Ming Teo, Denis Remiens, El Hadj Dogheche

In this present work, we have successfully synthesized vertical aligned ZnO nanorod arrays (ZnO NRs) on conductive stainless-steel substrate. These ZnO NRs were obtained by using a low temperature, low cost, and eco-friendly hydrothermal approach. The effect of the sol-gel deposited ZnO seed layer…

Coatings, 2023, This article belongs to the Special Issue Deposition and Applications of Protective Films and Coatings, 13 (1), pp.200. ⟨10.3390/coatings13010200⟩. ⟨hal-03952029⟩

• Article dans une revue

Goal-oriented error estimation based on equilibrated flux and potential reconstruction for the approximation of elliptic and parabolic problems

Emmanuel Creusé, Serge Nicaise, Zuqi Tang

We present a unified framework for goal-oriented estimates for elliptic and parabolic problems that combines the dual-weighted residual method with equilibrated flux and potential reconstruction. These frameworks allow to analyze simultaneously different approximation schemes for the space…

Computers & Mathematics with Applications, 2023, 146, pp.323-338. ⟨10.1016/j.camwa.2023.07.008⟩. ⟨hal-03719266v2⟩

• Article dans une revue

Evaluation of shear piezoelectric coefficients by a bimorph cantilever technique for extruded and oriented poly( l ‐lactide) films

Mohamed Aymen Ben Achour, Cédric Samuel, Mohamed Rguiti, Sophie Barrau, Christian Courtois, Marie‐france Lacrampe

Uniaxially stretched poly(l-lactide) (US-PLA) films display shear piezoelectric properties of interests for smart applications. However, the measurement of these properties is quite challenging and a simple technique based on bimorph cantilevers is here used. This technique is validated with…

• Article dans une revue

Post-infiltration to improve the density of binder jetting ceramic parts

Qirong Chen, Enrique Juste, Marie Lasgorceix, Guillaume Lefebvre, Christophe Tenailleau, Benjamin Duployer, David Grossin, Fabrice Petit, Anne Leriche

Infiltration of printed bodies with a ceramic suspension is a relevant approach to enhance density and properties of the porous binder-jetted parts. In the present work, significant improvements of alumina parts processed through this combination printing-infiltration was reported. The density of…

Journal of the European Ceramic Society, 2022, 42 (15), pp.7134-7148. ⟨10.1016/j.jeurceramsoc.2022.08.005⟩. ⟨hal-03889846⟩

• Article dans une revue

Indirect stability of a multidimensional coupled wave equations with one locally boundary fractional damping

Mohammad Akil, Ali Wehbe

In this work, we consider a system of multidimensional wave equations coupled by velocities with one localized fractional boundary damping. First, using a general criteria of Arendt–Batty, by assuming that the boundary control region satisfy some geometric conditions, under the equality speed…

Mathematical News / Mathematische Nachrichten, 2022, 295 (12), pp.2272-2300. ⟨10.1002/mana.202100185⟩. ⟨hal-04346829⟩

• Article dans une revue

Performance of a dual piezoceramic cantilever for low frequency energy harvesting applications: modeling and experiment verification

Madiha Yessari, Najoua Fangachi, Imane Salhi, Mohamed Rguiti, Abdelowahed Hajjaji

Vibration-based energy harvesting is a growing field for generating low-power electricity to use in wireless electronic devices. These applications are usually in an environment of abundant low frequency vibration, which can be collected through an appropriate energy conversion structure. However,…

European Physical Journal: Applied Physics, 2022, 97, pp.78. ⟨10.1051/epjap/2022220105⟩. ⟨hal-04280930⟩

• Article dans une revue

Study of the first boulogne-sur-mer cements used for a historic aqueduct from the 19th century, Tudija cementov boulogne-sur-mer, uporabljenih v zgodovinskem akvaduktu iz 19. Stoletja

Marwa Jebbawy, Vincent Thiéry, Myriam Bouichou, Elisabeth Marie-Victoire, Catherine Davy, Laurent Izoret, Cyrille Albert-Mercier, Myriam Moreau

Natural and Roman cements are generally considered as the first binders of the 19th century concrete but their widespread usage was short-lived as they were quickly replaced by artificial cements (Portland), still the most important and predominant today. The Boulogne-Sur-Mer area in the North of…, Naravni in romanski cementi so splo{no znani kot prva veziva v betonu iz 19 stoletja. Njihova {iroka uporaba je bila kratkotrajna, saj so jih hitro nadomestili umetni portlandski cementi, ki {e danes prevladujejo v betonih. Obmo~je Boulogne-Sur-Mer v severni Franciji je eno od zibelk francoske…

Materials and Technology = Materiali in tehnologije, 2022, 56 (5), 7 p. ⟨10.17222/mit.2022.554⟩. ⟨hal-04329773⟩

• Article dans une revue

Hermite interpolation by planar cubic-like ATPH, Interpolation de Hermite par des courbes ATPH pseudo-cubiques planes

Thierry Bay, Isabelle Cattiaux-Huillard, Laura Saini

This paper deals with the construction of the Algebraic Trigonometric Pythagorean Hodograph (ATPH) cubic-like Hermite interpolant. A characterization of solutions according to the tangents at both ends and a global free shape parameter α is performed. Since this degree of freedom can be used for…

Advances in Computational Mathematics, 2022, 48, ⟨10.1007/s10444-022-09978-8⟩. ⟨hal-03556981v2⟩

• Article dans une revue

Influence of calcium substitution on structural, morphological and electrical conductivity properties of La1- xCaxNi0.5Ti0.5O3 (x = 0.0, x = 0.2) compounds for energy storage devices

Sirine Gharbi, Ahmadou Ly, Essebti Dhahri, Régis Barillé, Driss Lahem, Marc Debliquy, Mohamed Rguiti

This paper explores the effect of calcium insertion on the physicochemical properties of La1-xCaxNi0.5Ti0.5O3 (x = 0.0 (LNTO), x = 0.2 (LCNTO)) compounds fabricated by the sol–gel process. The samples crystallize in an orthorhombic distorted structure with the Pnma space group. The purity and…

Inorganic Chemistry Communications, 2022, 144, pp.109925. ⟨10.1016/j.inoche.2022.109925⟩. ⟨hal-04489910⟩