Title of research project

EMUHYTO

PhD student in materials science studying hydrogen transport in plasma-facing components of tokamaks

Contract type Contrat (CDD) Category A Workload Fulltime

Scientific field Sciences de l’ingénieur
Matériaux

WorklJob Descriptionoad

Description of the offer The doctoral project focuses on the functional properties related to hydrogen transport in metals for nuclear safety and the in-service performance of tokamak components. Tokamaks are promising reactors for harnessing thermonuclear fusion as a clean and abundant source of electricity. The main objective is to link the interface properties between two materials at the microscopic scale to their impact at the scale of a tokamak several tens of meters in diameter. We will demonstrate the influence of machining techniques on hydrogen permeation while providing recommendations on annealing scenarios and the sizing of material layers necessary to minimize this permeation and total retention within the reactor. To this end, and based on experimental results, a finite element model of hydrogen diffusion and trapping will be proposed to account for the interface between two materials (for both W/Cu and W/steel pairs), before incorporating it into models at the scale of an elementary component. To scale up to a tokamak (WEST and ITER), automated calculations will be developed, taking into account the spatiotemporal variability of boundary conditions. This will require processing several thousand numerical results, necessitating the exploration of artificial intelligence data processing. This project is a first step towards the goal of developing a digital twin of a tokamak for real-time mapping of hydrogen retained in its components.

Field of research Hydrogen, Plasma, Tokamaks

Skills Finite Element Modeling, Multiphysics coupling, Code coupling, Data science

Knowledge Programming, Material Science, Thermonuclear Fusion, Hydrogen transport in microstructure

Work environment

Location Villetaneuse

Laboratory Laboratoire des Sciences des Procédés et des Matériaux

Degree level

Degree required Master's degree (M2) in Engineering, Materials Science or Plasma Physics

Experience required Advanced use of a finite element analysis code for simulating hydrogen transport in metals.
Experience in thermonuclear fusion is required.

Additionnal information

Start date 10 01 26

Job Type Contrat (CDD)

Salary 2440 € per month

Contract duration 3 ans

Composition of the selection jury

(Président(e)) Jonathan Mougenot

Yann Charles

Nadjib Iskounen

Application deadline 08 17 26

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