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Article dans une revue

Microstructural design of ceramics for bone regeneration

Adrián del Valle García, Dominique Hautcoeur, Anne Leriche, Francis Cambier, Carmen Baudin

Dense tricalcium phosphate, Ca3(PO4)2 (TCP) – diopside, CaMg(SiO3)2, composites present better mechanical properties than single phase TCP. In this work, it is investigated whether the mechanical behaviour improvement by diopside is maintained in porous scaffolds. The processing parameters to…

Journal of the European Ceramic Society, 2020, 40 (7), pp.2555-2565. ⟨10.1016/j.jeurceramsoc.2019.10.039⟩. ⟨hal-03479608⟩

Article dans une revue

Coupling additive manufacturing and microwave sintering: A fast processing route of alumina ceramics

Hugo Curto, Anthony Thuault, Florian Jean, Maxence Violier, Vedi Dupont, Jean-Christophe Hornez, Anne Leriche

In this paper, a quick and efficient route to produce complex-shape alumina is reported. Alumina pieces are shaped by additive manufacturing (stereolithography) and densified by microwave sintering. Two raw powders are investigated in terms of both printing and microwave sintering: one alumina…

Journal of the European Ceramic Society, 2020, 40 (7), pp.2548-2554. ⟨10.1016/j.jeurceramsoc.2019.11.009⟩. ⟨hal-03479272⟩

Article dans une revue

Stability and asymptotic properties of a linearized hydrodynamic medium model for dispersive media in nanophotonics

Serge Nicaise, Claire Scheid

We analyze the stability of a linearized hydrodynamical model describing the response of nanometric dispersive metallic materials illuminated by optical light waves that is the situation occurring in nanoplasmonics. This model corresponds to the coupling between the Maxwell system and a PDE…

Computers & Mathematics with Applications, 2020, 79 (12), ⟨10.1016/j.camwa.2020.02.006⟩. ⟨hal-02276569⟩

Article dans une revue

A transmission problem of a system of weakly coupled wave equations with Kelvin–Voigt dampings and non-smooth coefficient at the interface

Alaa Hayek, Serge Nicaise, Zaynab Salloum, Ali Wehbe

The purpose of this work is to investigate the stabilization of a system of weakly coupled wave equations with one or two locally internal Kelvin-Voigt damping and non-smooth coefficient at the interface. The main novelty in this paper is that the considered system is a coupled system and that the…

SeMA Journal: Boletin de la Sociedad Española de Matemática Aplicada, 2020, 77 (3), pp.305 - 338. ⟨10.1007/s40324-020-00218-x⟩. ⟨hal-04305136⟩

Article dans une revue

Development of Ultrasonic Surface Acoustic Wave Humidity Sensors, Développement de Capteurs d’Humidité Ultrasonores à ondes Acoustiques de Surface

Saliou Ndao, Marc Duquennoy, Christian Courtois, Mohammadi Ouaftouh, Mohamed Rguiti, Nikolay Smagin, Frédéric Rivart, Maurice Gonon, Grégory Martic, Christine Pelegris, Frédéric Jenot

In a European project called CUBISM, humidity sensors based on IDT (Inter Digital Transducer) technology are developed for the generation and detection of surface acoustic waves (SAW). These sensors are designed to operate at high temperature (500°C) for monitoring the drying of refractory concrete…, Dans le cadre d’un projet européen nommé CUBISM, des capteurs d’humidité basés sur la technologie IDT (Inter Digital Transducer) pour la génération et la détection des ondes acoustiques de surface ou SAW (Surface Acoustic Wave) sont développés. Ces capteurs sont destinés à fonctionner à haute…

Instrumentation, Mesure, Métrologie, 2020, 19 (3), pp.205-210. ⟨10.18280/i2m.190305⟩. ⟨hal-03480302⟩

Article dans une revue

Existence and multiplicity for an elliptic problem with critical growth in the gradient and sign-changing coefficients

Colette De Coster, Antonio J. Fernández Sánchez

Let Ω ⊂ RN, N≥ 2 , be a smooth bounded domain. We consider the boundary value problem [Figure not available: see fulltext.]where cλ and h belong to Lq(Ω) for some q> N/ 2 , μ belongs to R\ { 0 } and we write cλ under the form cλ: = λc+- c- with c+≩ 0 , c-≥ 0 , c+c-≡ 0 and λ∈ R. Here cλ and h are…

Calculus of Variations and Partial Differential Equations, 2020, 59 (3), ⟨10.1007/s00526-020-01755-z⟩. ⟨hal-03337292⟩

Article dans une revue

3D printed bioceramic for phage therapy against bone nosocomial infections

Franck Bouchart, Olivier Vidal, Jean-Marie Lacroix, Corentin Spriet, Shaan Chamary, Annie Brutel, Jean-Christophe Hornez

This study provides a new therapeutic response to postoperative joint and bone infections. Alone or in combination with antibiotics, phage therapy has many advantages, including accurate targeting of pathogenic bacteria. In addition, a decrease in harmful side effects can improve the healing…

Materials Science and Engineering: C, 2020, 111, 13 p. ⟨10.1016/j.msec.2020.110840⟩. ⟨hal-04279673⟩

Article dans une revue

Phase transformations and microstructural evolution in nanocrystalline Fe 71 B 23 Nb 6 alloy prepared by mechanical alloying

Mahmoud Chemingui, Chahida Mnasri, Christelle Nivot, Arnaud Tricoteaux, Yannick Lorgouilloux, Mohamed Dammak

Abstract A new nanocrystalline Fe 71 B 23 Nb 6 alloy powder was prepared by mechanical alloying. The phase transformation and morphological and microstructural properties of the as-prepared alloy were investigated by scanning electron microscopy, laser granulometry, and X-ray diffraction with…

International Journal of Materials Research, 2020, 111 (4), pp.307-315. ⟨10.1515/ijmr-2020-1110406⟩. ⟨hal-04279070⟩

Article dans une revue

Low voltage plasma jet with piezoelectric generator : preliminary evaluation of decontamination capabilities

Jordan Stekke, Claire Tendero, Pascal Tierce, Christian Courtois, Gaetan Rauwel, Juslan Lo, Philippe Guillot, François Pigache

This paper deals with the proof of concept and the preliminary evaluation of decontamination performances obtained with a plasma jet generated by a piezoelectric transformer. This low voltage supply solution (<10V) is investigated as a plasma jet device, compact and safe solution for the…

IEEE Transactions on Plasma Science, 2020, 48 (5), pp.1264-1270. ⟨10.1109/TPS.2020.2985406⟩. ⟨hal-02640823v2⟩

Article dans une revue

Influence of microwave sintering on electrical properties of BCTZ lead free piezoelectric ceramics

Kelly Orlik, Yannick Lorgouilloux, Pascal Marchet, Anthony Thuault, Mohamed Rguiti, Christian Courtois, Florian Jean

Barium titanate doped with calcium and zirconium (BCTZ) could be used at low temperature to replace lead based piezoelectric ceramics (PZT). The classical way to obtain BCTZ is the solid-state route coupled with conventional sintering, but this step is time-consuming. To reduce the duration of this…

Journal of the European Ceramic Society, 2020, 40 (4), pp.1212-1216. ⟨10.1016/j.jeurceramsoc.2019.12.010⟩. ⟨hal-02550924⟩