Publicaciones

• ART

Densification of hydroxyapatite through cold sintering process: Role of liquid phase chemistry and physical characteristic of HA powder

Muthusundar Kumar, Mohamed Aymen Ben Achour, Marie Lasgorceix, Paulo Quadros, Rosica Mincheva, Jean-Marie Raquez, Anne Leriche

Hydroxyapatite is a well-known bioactive material widely employed in bone regeneration applications. Densifying hydroxyapatite at the nanoscale remains challenging with conventional sintering methods. This investigation focuses on the densification of commercially available nano-hydroxyapatite...

Open Ceramics, 2024, 17, ⟨10.1016/j.oceram.2024.100566⟩. ⟨hal-04542434⟩

• UNDEFINED

Sur les suites des descendants d'un polygone

Aziz El Kacimi Alaoui, Abdellatif Zeggar

Soient P = [A_1 , ..., A_n ] un n-polygone (avec n ≥ 4) du plan euclidien E et λ un réel dans l'intervalle ]0, 1[. On note P_1 = [A′_1 , • • • , A′_n ] le n-polygone dont les sommets A′_1 , • • • , A′_n sont les λ-barycentres A′_k = (1-λ)A_k + λA_{k+1} , avec 1 ≤ k ≤ n et A_{n+1} = A_1 ; on...

2024. ⟨hal-04444952⟩

• THESE

Élaboration de prothèses dentaires par fabrication additive indirecte combinant stéréolithographie et gel casting, Development of dental prostheses by indirect additive manufacturing combining stereolithography and gel casting

Pierre Grimaud

Ce mémoire de thèse découle d’une recherche collaborative initiée en octobre 2020, dont le thème s’articule autour de l’élaboration de pièces céramiques techniques à géométrie complexe par des procédés innovants. Associant les compétences du CERAMATHS de Maubeuge-France et du BCRC de Mons-Belgique..., This thesis results from collaborative research initiated in October 2020, the theme of which revolves around the development of technical ceramic pieces with complex geometry using innovative processes. Combining the skills of CERAMATHS of Maubeuge-France and the BCRC of Mons-Belgium, this applied...

Matériaux. Université Polytechnique Hauts-de-France, 2024. Français. ⟨NNT : 2024UPHF0004⟩. ⟨tel-04619693⟩

• ART

Discrete Gagliardo-Nirenberg inequality and application to the finite volume approximation of a convection-diffusion equation with a Joule effect term

Caterina Calgaro, Clément Cancès, Emmanuel Creusé

A discrete order-two Gagliardo–Nirenberg inequality is established for piecewise constant functions defined on a two-dimensional structured mesh composed of rectangular cells. As in the continuous framework, this discrete Gagliardo–Nirenberg inequality allows to control in particular the $L^4$ norm...

IMA Journal of Numerical Analysis, 2024, 44 (4), pp.2394-2436. ⟨10.1093/imanum/drad063⟩. ⟨hal-03881410v2⟩

• ART

Effect of hydrophobicity in hybrid sol-gel coating for enhanced barrier property on mild steel

Kurt Hermange, Sheng Yuan, Shi Yu, Benoît Ter-Ovanessian, Bernard Normand

Surface and Coatings Technology, 2024, 485, ⟨10.1016/j.surfcoat.2024.130876⟩. ⟨hal-04672842⟩

• COUV

Aux sources historiques de l'exponentielle : une introduction en classe de première

Francois Goichot

On présente d'abord, historiquement, différents acteurs et différents contextes qui ont contribué à la découverte - ou l'invention - de ce qui est maintenant appelé fonction exponentielle. Un scénario est ensuite proposé, utilisant cette histoire pour introduire l'exponentielle en...

Frédéric LAURENT. Vivre les mathématiques par des approches historiques, ADAPT Éditions, pp.273-293, 2024, La grande collection, 9782356560834. ⟨hal-04749406⟩

• POSTER

Control of the preferential orientation of the growth of Sr2TiSi2O8 crystals in glass ceramics obtained by crystallization of parent glasses from the SrO – TiO2 – SiO2 – K2O – Al2O3 system

Oussama Zwein, Maurice Gonon, Marc Duquennoy, Rıdvan Yildiz, Sandra Abdelouhab

Belgian Ceramic Society (BCERS) day, Dec 2023, Louvain (Leuven), Belgium. ⟨hal-04429470⟩

• COMM

Cold Sintering Process for developing hydroxyapatite ceramic and polymer composite

Muthusundar Kumar, Mohamed Aymen Ben Achour, Marie Lasgorceix, Rosica Mincheva, Jean-Marie Raquez, Anne Leriche

Cold sintering process (CSP) is a non-conventional, low-energy sintering technique that promotes the densification of ceramics in the presence of transient liquids under low temperatures (≤300°C) and pressures (≤500 MPa). Additionally, it provides a new strategy for the co-sintering of ceramic and...

BioCAM Workshop, Dec 2023, Mons, Belgium. ⟨hal-04393180⟩

• COMM

3D printing of doped β-tricalcium phosphate bioceramics using robocasting

Nicolas Somers, Marie Lasgorceix, Florian Jean, Nicolas Preux, Cathy Delmotte, Laurent Boilet, Fabrice Petit, Anne Leriche

β-tricalcium phosphate (β-TCP, β-Ca3(PO4)2) is one of the most attractive biomaterials for bone regeneration and β-TCP macroporous scaffolds are highly promising for bone tissue engineering. Robocasting, an additive manufacturing process based on the extrusion of a concentrated ceramic slurry, is...

BioCAM, Dec 2023, MONS, Belgium. ⟨hal-04390681⟩

• COMM

3D technology and antibacterial post-treatments: the process for the future manufacturing of bone substitutes?

Anne Leriche, Franck Bouchart, Dominique Hautcoeur, Jean-Christophe Hornez, Marie Lasgorceix, Edwige Meurice

Various 3D methods have been more and more used for the manufacturing of macroporous bioceramics for bone substitution applications. It is then legitimate to question the relevance of these methods regarding cellular behavior and recolonization of the ceramic parts in healthy or pathogenic...

BioCAM Workshop, Dec 2023, Mons, Belgium. ⟨hal-04393175⟩