Publicaciones

• THESE

Nouvelles céramiques piézoélectriques sans plomb pour des applications sonar ou de contrôle non destructif, Lead free piezoelectric ceramics for sonar applications and non destructive control

Kelly Orlik

Cette étude est focalisée sur l’élaboration du titanate de baryum dopé au calcium et au zirconium (BCTZ), de formule Ba₀∙₈₅Ca ₀∙₁₅Ti₀∙₉₀Zr₀∙₁₀O₃, par voie solide, le but étant de mettre au point un protocole de synthèse et de frittage optimisé et répétable de ce matériau piézoélectrique sans plomb..., In this work barium titanate doped with calcium and zirconium (BCTZ), with the composition Ba₀⋅₈₅Ca₀⋅₁₅Ti₀⋅₉₀Zr₀⋅₁₀O₃, was synthesized by solid-state route. The aim of this work was to elaborate an optimized and reproducible synthesis and sintering procedure. Besides, the composition was slightly...

Mécanique des matériaux [physics.class-ph]. Université Polytechnique Hauts-de-France, 2019. Français. ⟨NNT : 2019UPHF0010⟩. ⟨tel-03155181⟩

• COMM

High-order DG-SE approximations of elastodynamic wave problems with stable Perfectly Matched Layers

Hélène Barucq, Henri Calandra, Aurélien Citrain, Julien Diaz, Christian Gout

MATHIAS Days, Applied Mathematics, Scientific Computing, Data Science and Artificial Intelligence, Oct 2019, Serris, France. ⟨hal-02425960⟩

• POSTER

Doping β-TCP ceramics to improve their densification and mechanical properties in use of resorbable bone substitutes

Nicolas Somers, Florian Jean, Marie Lasgorceix, Anthony Thuault, Fabrice Petit, Anne Leriche

Workshop for Ceramics and Glasses in Medical Applications (Y-CGMed 2019), Oct 2019, madrid, Spain. ⟨hal-04392679⟩

• ART

Tribological behavior of composites fabricated by reactive SPS sintering in Ti‐Si‐C system

Youcef Hadji, Abdessabour Benamor, Nabil Chiker, Adel Haddad, Nacer Tala-Ighil, Jean-Pierre Erauw, Vedi Dupont, Arnaud Tricoteaux, Christelle Nivot, Anthony Thuault, Mohamed Hadji

In this study, wear and friction behavior of two based-composites from the Ti-Si-C system, (40 wt% TiC; 28 wt% Ti5Si3; 17 wt% Ti3SiC2) and (18 wt% TiC; 26 wt% Ti5Si3; 41 wt% Ti3SiC2) reinforced by 15 wt% of large size SiC (100-150 µm) particles were investigated. The four-phase composites exhibited...

International Journal of Applied Ceramic Technology, 2019, 17 (2), pp.695-706. ⟨10.1111/ijac.13443⟩. ⟨hal-03479330⟩

• THESE

Existence and multiplicity of solutions for elliptic problems with critical growth in the gradient, Existence et multiplicité de solutions pour des problèmes elliptiques avec croissance critique dans le gradient

Antonio J. Fernández Sánchez

In this thesis, we provide existence, non-existence, uniqueness and multiplicity results for partial differential equations with critical growth in the gradient. The principal techniques employed in our proofs are variational techniques, lower and upper solution theory, a priori estimates and..., Dans cette thèse, nous donnons des résultats d’existence, de non-existence, d’unicité et de multiplicité de solutions pour des équations aux dérivées partielles avec croissance critique dans le gradient. Les principales méthodes utilisées dans nos preuves sont des arguments variationnels, la...

Analysis of PDEs [math.AP]. Université de Valenciennes et du Hainaut-Cambresis, 2019. English. ⟨NNT : 2019VALE0020⟩. ⟨tel-02299049⟩

• COUV

Monomial Representations of Discrete Type of an Exponential Solvable Lie Group

Ali Baklouti, Hidenori Fujiwara, Jean Ludwig

Let G be an exponential solvable Lie group, H an analytic subgroup of G and χ a unitary character of H. We study some problems related to the induced representation τ=indGHχ of G when τ has multiplicities either finite or infinite of discrete type. In particular, we are interested in the Plancherel...

Geometric and harmonic analysis on homogeneous spaces, pp.1-55, 2019, ⟨10.1007/978-3-030-26562-5_1⟩. ⟨hal-03313494⟩

• ART

Comparing variational methods for the hinged Kirchhoff plate with corners

Colette De Coster, Serge Nicaise, Guido Sweers

The hinged Kirchhoff plate model contains a fourth order elliptic differential equation complemented with a zeroeth and a second order boundary condition. On domains with boundaries having corners the strong setting is not well‐defined. We here allow boundaries consisting of piecewise C2, 1‐curves...

Mathematical News / Mathematische Nachrichten, 2019, 292 (12), pp.2574-2601. ⟨10.1002/mana.201800092⟩. ⟨hal-03164134⟩

• ART

A posteriori error estimates for a fully discrete approximation of Sobolev equations

Serge Nicaise, Fatiha Bekkouche

The paper presents an a posteriori error estimator for a (piecewise linear) conforming finite element approximation of some (linear) Sobolev equations in R d , d = 2 or 3, using implicit Euler's scheme. For this discretization, we derive a residual indicator, which uses a spatial residual..., L'accès aux articles de la revue « Confluentes Mathematici » (http://cml.cedram.org/), implique l'accord avec les conditions générales d'utilisation (http://cml.cedram.org/legal/). Toute reproduction en tout ou partie de cet article sous quelque forme que ce soit pour tout usage...

Confluentes Mathematici, 2019, 11 (1), pp.3-28. ⟨10.5802/cml.53⟩. ⟨hal-04305434⟩

• COMM

Finite element discretizations of high-frequency wave propagation problems in heterogeneous media

Théophile Chaumont-Frelet, Serge Nicaise

Waves 2019 - 14th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Aug 2019, Vienna, Austria. ⟨hal-02321137⟩

• PROCEEDINGS

Comparison of microwave sintering of microsized and nanosized hydroxyapatite powders

Pierre Lefeuvre, Anthony Thuault, Jean-Christophe Hornez, Anne Leriche, S. Hocquet

CIEC 16 European Inter-regional Conference on Ceramics Torino, 9-11 September 2018, Editore/Publisher Politecnico di Torino., pp.106-110, 2019, 9788885745216. ⟨hal-04408029⟩