Centre des Matériaux
Pierre-Marie Fourt
Pierre-Marie Fourt
Lecture
Bio-based aerogels: new eco-friendly porous materials for thermal insulation and controlled release
| Area of expertise | Mechanics |
| Doctoral School | ISMME - Systems Engineering, Materials, Mechanics, Energy |
| Supervisor | M. Jacques BESSON |
| Research unit | Centre of materials |
| Contact | https://www.mat.minesparis.psl.eu/formation/doctorat/propositions-de-sujets-de-these/ |
| Starting date | October 1st 2024 |
| Keywords | Materials science, fracture mechanics, DHC, hydrogen embrittlement, zirconium, finite element simulations |
| Abstract | Delayed Hydride Cracking (DHC) is a critical phenomenon observed in zirconium alloys used in nuclear fuel cladding. This process results from the interaction between pre-existing defects, such as cracks, and the hydrogen present in the material. When subjected to stress, hydrogen diffuses towards these defects and forms hydrides, thus embrittling the structure and causing crack propagation. To better understand and prevent DHC, this thesis focuses on several key mechanisms. These include hydrogen diffusion in the material, hydride formation kinetics and hydride morphology. An experimental study will be developed to assess the resistance of zirconium alloys to DHC, with the aim of applying these procedures to more modern materials and developing microstructure models to predict the behavior of zirconium alloys. The thesis will be based on in-depth experimental analysis, mechanical and microstructural characterization and advanced numerical modeling. By contributing to the understanding and prevention of DHC, it plays a crucial role in nuclear applications, ensuring the safety and reliability of structures used in power plants. |
| Profile | Engineer and / or Master of Science - Good level of general and scientific culture. Good level of knowledge of French (B2 level in french is required) and English. (B2 level in english is required) Good analytical, synthesis, innovation and communication skills. Qualities of adaptability and creativity. Teaching skills. Motivation for research activity. Coherent professional project. Prerequisite (specific skills for this thesis): Applicants should supply the following : • a detailed resume • a copy of the identity card or passport • a covering letter explaining the applicant’s motivation for the position • detailed exam results • two references : the name and contact details of at least two people who could be contacted • to provide an appreciation of the candidate • Your notes of M1, M2 • level of English equivalent TOEIC to be sent to recrutement_these@mat.mines-paristech.fr |
| Funding | Partenariat d'entreprises ou d'associations |
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