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Article dans une revue

Design and numerical simulation of a piezoelectric harvester using PVDF polymer for keyboard application

Madiha Yessari, Najoua Fangachi, Mohamed Rguiti, Abdelowahed Hajjaji

Finding new energy sources has received in recent years a particular interest among scientists. Our research focuses on the generation of micro-renewable energy. This energy is used to power various wireless devices, such as sensors, actuators and micro-electromechanical systems (MEMS). In this…

Materials Today: Proceedings, 2022, 66, pp.365 - 372. ⟨10.1016/j.matpr.2022.05.545⟩. ⟨hal-03703093⟩

Article dans une revue

Mechanical and sandblasting erosion resistance characterization of chemical strengthened float glass, Caracterización de la resistencia a la erosión mecánica por arenado de vidrio flotado templado químicamente

Oumessad Gridi, Zahra Malou Hamidouche, Christine Kermel, Anne Leriche

The purpose of this work is to study the influence of the immersion temperature and the treatment time of the ion exchange of soda-lime glass in molten KNO3 bath on its mechanical properties, and in particular the erosion resistance using Sahara sand and alumina abrasives. EDS analysis showed that…, El propósito de este trabajo es estudiar la influencia de la temperatura y el tiempo de inmersión en un baño de nitrato de potasio (KNO3) fundido en el comportamiento mecánico de un vidrio sodocálcico. La extensión del proceso de intercambio iónico se ha caracterizado mediante microanálisis por…

Boletín de la Sociedad Española de Cerámica y Vidrio, 2022, 61 (3), pp.229-240. ⟨10.1016/j.bsecv.2020.11.004⟩. ⟨hal-04491886⟩

Article dans une revue

First historical cements in France from Boulogne sur Mer: investigations on 19th century's manufactured cement- based monuments

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

The Boulogne-Sur-Mer area in the North of France is one of the cradles of the French cement industry (the other main one is Grenoble region due to Joseph Vicat's first cement works). From fast setting (Roman) to Portland, those cements were famous in France and have been used throughout the…

Journal of Microscopy, 2022, Journal of Microscopy, 286 (2), pp.63-68. ⟨10.1111/jmi.13071⟩. ⟨hal-04137756⟩

Article dans une revue

Two novel phosphates Na2Mg2Fe(PO4)3 and Ag2Mg2Fe(PO4)3 with alluaudite structure: Synthesis, crystal structure and electrical properties

Ahmed Ould Saleck, Cyrille Albert-Mercier, Claudine Follet-Houttemane, Abderrazzak Assani, Mohamed Saadi, E. Capoen, Lahcen El Ammari

Single crystals and powders of the orthophosphates A2Mg2Fe(PO4)3 with A = Na+ or Ag+ have been synthesized by solid-state reaction. The X-ray diffraction diagrams of Na2Mg2Fe(PO4)3 and Ag2Mg2Fe(PO4)3 were refined by pattern matching method. The two compounds crystallize in C2/c space group…

Journal of Solid State Chemistry, 2022, 312 (2), pp.123139. ⟨10.1016/j.jssc.2022.123139⟩. ⟨hal-03656806⟩

Article dans une revue

Investigation of the effect of Sr-substitution on the structural, morphological, dielectric, and energy storage properties of BaTiO3-based perovskite ceramics

Rafik Moussi, Amira Bougoffa, Abdessalem Trabelsi, Essebti Dhahri, M.P.F. Graça, M.A. Valente, R. Barille, Mohamed Rguiti

In this work, Ba1-xSrxTiO3 (x = 0 and x = 0.3) samples, abbreviated respectively BT and BST, have been prepared by conventional solid state reaction. The pure phase formation and crystal structure were approved by X-ray powder diffraction analysis. The morphology of these samples were inspected by…

Inorganic Chemistry Communications, 2022, 137, pp.109225. ⟨10.1016/j.inoche.2022.109225⟩. ⟨hal-03703122⟩

Article dans une revue

Binder jetting process with ceramic powders

Qirong Chen, Enrique Juste, Marie Lasgorceix, Fabrice Petit, Anne Leriche

Binder jetting (BJ) is an additive manufacturing process in which powder materials are selectively joined by a binder. BJ is plagued by its high sensitivity to both powder properties and process parameters which critically affect the quality of powder beds and final products. Alumina powder was…

Open Ceramics, 2022, 9, 14 p. ⟨10.1016/j.oceram.2022.100218⟩. ⟨hal-03889926⟩

Article dans une revue

A Comparative EPR Study of Non-Substituted and Mg-Substituted Hydroxyapatite Behaviour in Model Media and during Accelerated Ageing

Monica Vidotto, Timor Grego, Bozana Petrovic, Nicolas Somers, Tatjana Antonic Jelic, Damir Kralj, Nives Matijakovic Mlinaric, Anne Leriche, Maja Dutour Sikirić, Ina Erceg, Nadica Maltar-Strmečki

To assess the application potential of novel biomaterials, their behaviour in model media and upon sterilization should be investigated, as well as the stability related to their storage conditions. Such data are lacking for Mg-substituted HAP (Mg-HAP). Therefore, the changes in the local structure…

Crystals, 2022, 12 (2), pp.297. ⟨10.3390/cryst12020297⟩. ⟨hal-04491859⟩

Article dans une revue

On Levi flat hypersurfaces with transversely affine foliation

Séverine Biard, Masanori Adachi

We prove the non-existence of real analytic Levi flat hypersurface whose complement is 1-convex and Levi foliation is transversely affine in a compact Kähler surface.

Mathematische Zeitschrift, In press, pp.1-12. ⟨10.1007/s00209-021-02927-z⟩. ⟨hal-03519349⟩

Article dans une revue

The influence of the physical coefficients of a Bresse system with one singular local viscous damping in the longitudinal displacement on its stabilization

Mohammad Akil, Haidar Badawi

In this paper, we investigate the stabilization of a linear Bresse system with one singular local frictional damping acting in the longitudinal displacement, under fully Dirichlet boundary conditions. First, we prove the strong stability of our system. Next, using a frequency domain approach…

Evolution Equations and Control Theory, 2022, 11 (6), pp.1903-1928. ⟨10.3934/eect.2022004⟩. ⟨hal-04347040⟩

Article dans une revue

The coupled heat Maxwell equations with temperature-dependent permittivity

Tonia-Maria Alam, Luc Paquet

We consider the heat equation coupled with the Maxwell system, the Ampère- Maxwell equation being coupled to the heat equation by the permittivity, which depends on the temperature due to thermal agitation, and the heat equation being coupled to the Maxwell system by the volumic heat source term.…

Journal of Mathematical Analysis and Applications, 2022, 505 (1), 50 p. ⟨10.1016/j.jmaa.2021.125472⟩. ⟨hal-03722137⟩