Researcher in Materials and Solid Mechanics

il y a 2 semaines


Grenoble, France CEA Temps plein

Description du poste

**Domaine**:

- Mécanique et thermique

**Contrat**:

- CDD

**Intitulé de l'offre**:

- Researcher in materials and solid mechanics modelling H/F

**Statut du poste**:

- Cadre

**Durée du contrat (en mois)**:

- 18

**Description de l'offre**:
- The state-of-the-art ‘hydrogen’ electrode is made of a cermet of Nickel and Yttria Stabilized Zirconia (Ni-YSZ) (Fig. 1). In operation, the Ni is in its reduced state and ensures the electronic conductivity of the electrode while YSZ imparts its ionic conductivity. Failure in the system (such as fuel overutilization due to a problem of gas feeding, gas leakage or air reintroduction during the system shutdown) leads to the Ni re-oxidation. During the transformation of Ni into NiO, an expansion of the particles generates micro-cracks in the YSZ network of the cermet. This deterioration of the electrode decreases its performances leading to a reduction of the SOC lifetime [3]. Therefore, the robustness of the cell components must still be improved especially for the cermet. However, the threshold in terms of Ni re-oxidation triggering the fracture in the cermet is not precisely known. Moreover, the density and distribution of micro-cracks are essential to assess their real impact on the performances. The determination of such quantities in the complex 3D microstructure of the electrode is a prerequisite to design a robust cell.- Engineer or equivalent with a doctorate in the field of materials mechanics
- Higher educational training in mechanics and materials.
- Experience and interest in modeling is essential
- Knowledge of software such as Matlab and Comsol would be useful
- Experience in participating in or managing collaborative research projects would be a plus
- Fluency in English is necessary.**Skills**:
- Materials Mechanics / Modelling / Materials PhysicsEndowed with a good spirit of synthesis, you demonstrate scientific rigor, responsiveness, autonomy, creativity, adaptability and good interpersonal skills. You enjoy working within a very dynamic multidisciplinary team.Localisation du poste

**Site**:

- Grenoble

**Localisation du poste**:

- France, Auvergne-Rhône-Alpes, Isère (38)

**Ville**:

- Grenoble

**Langues**:

- Anglais (Courant)

Demandeur

**Disponibilité du poste**:

- 01/03/2024

Informations générales

**Entité de rattachement**:
Le CEA est un acteur majeur de la recherche, au service des citoyens, de l'économie et de l'Etat.
- Il apporte des solutions concrètes à leurs besoins dans quatre domaines principaux : transition énergétique, transition numérique, technologies pour la médecine du futur, défense et sécurité sur un socle de recherche fondamentale. Le CEA s'engage depuis plus de 75 ans au service de la souveraineté scientifique, technologique et industrielle de la France et de l'Europe pour un présent et un avenir mieux maîtrisés et plus sûrs.
- Implanté au cœur des territoires équipés de très grandes infrastructures de recherche, le CEA dispose d'un large éventail de partenaires académiques et industriels en France, en Europe et à l'international.
- Les 20 000 collaboratrices et collaborateurs du CEA partagent trois valeurs fondamentales:
- La conscience des responsabilités
- La coopération
- La curiosité

**Référence **:2023-29532



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