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  Huge local elastic strains in bulk nanostructured pure zirconia materials 

  ORS, Taylan; GOURAUD, Fanny; MICHEL, Vincent; HUGER, Marc; GEY, Nathalie; MICHA, Jean-Sébastien; CASTELNAU, Olivier; GUINEBRETIÈRE, René (Elsevier BV, 2021)

  From the liquid state to room temperature, two successive solid-state phase transitions occur in pure zirconia. It is well-known that the last one (tetragonal to monoclinic) is martensitic and induces large volume variations ...
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  ROMP of novel hindered phenol-functionalized norbornenes and preliminary evaluation as stabilizing agents† 

  NICOLAS, Clémence; HUANG, Jing; RICHAUD, Emmanuel; MINNE, Wendy; DROZDZAK, Renata; RECHER, Gilles; FONTAINE, Laurent; MONTEMBAULT, Véronique (Elsevier, 2021)

  A series of new norbornene monomers containing sterically hindered phenol groups have been synthesized and polymerized via ring-opening metathesis polymerization (ROMP) using the Grubbs 3rd generation catalyst (G3’). ROMPs ...
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  Application of electron tomography of dislocations in beam-sensitive quartz to the determination of strain components 

  MUSSI, Alexandre; GALLET, Julien; CASTELNAU, Olivier; CORDIER, Patrick (Elsevier, 2021)

  In this study we apply electron tomography of dislocations to quartz with a view to assess whether the von Mises-Taylor criterion is satisfied or violated in a deformed crystal of quartz. We propose a method to perform ...
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  Periodic smoothing splines for FFT-based solvers 

  MORIN, Léo; BRENNER, Renald; DERRIEN, Katell; DORHMI, Khaoula (Elsevier, 2021)

  The aim of this paper is to develop a periodic smoother based on splines for FFT-based solvers. Spurious oscillations in FFT-based methods are shown to be due to pseudo-spectral differentiation of discontinuous fields. An ...
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  Transient dynamics and stability of keyhole at threshold in laser powder bed fusion regime investigated by finite element modeling 

  MAYI, Yaasin A.; DAL, Morgan; PEYRE, Patrice; BELLET, Michel; METTON, Charlotte; MORICONI, Clara; FABBRO, Remy (Laser Institute of America, 2021)

  A Finite element model is developed with a commercial code to investigate the keyhole dynamics and stability at keyhole threshold, a fusion regime characteristic to laser microwelding or to Laser Powder Bed Fusion. The ...
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  A new analytical model for predicting the thermal oxidation kinetics of composite organic m atrices. Application to diamine cross-linked epoxy 

  COLIN, Xavier; ESSATBI, Fatima; DELOZANNE, Justine; MOREAU, Gurvan (Elsevier, 2021)

  The system of differential equations derived from the so-called “closed-loop” mechanistic scheme was solved analytically by applying realistic proportionality assumptions between the different concentrations of reactive ...
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  Oxidation and unzipping in ELIUM resin: Kinetic model for mass loss 

  CHEBIL, Mohamed Souheib; BOUAOULO, Guillaume; GERARD, Pierre; EUCH, Salma EL; ISSARD, Hervé; RICHAUD, Emmanuel (Elsevier, 2021)

  This paper gives a first study of the thermal and thermal oxidative ageing of ELIUM® resins. Chain ends unzipping was observed to be the main degradation mechanism under nitrogen whereas an oxidation mechanism with random ...

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