Phd in Materials Science
il y a 4 jours
_**CONTEXT**_ - THEFRAMIC (THErmal shock resistance of reFRActory ceramics, MICrostructure design and MICromechanical behaviour) is a multi-partner project involving both research laboratories and industrial companies which aims to optimize the microstructure design of ceramics. Facing the challenges of energy efficiency and CO2 reduction, THEFRAMIC offers an innovative approach combining advanced characterization and predictive modelling to develop a new generation of refractory materials in sectors such as steel, cement or aeronautics. Magnesia/spinel and magnesia/hercynite multiphase materials exhibit unique characteristics due to complex matrix/aggregate interfaces. Indeed, the role of controlled multi-scale microcracking in the microstructure is of interest in the objective of improving thermal shock resistance. THEFRAMIC is based on complementary research topics: fine characterizations by Electron BackScattered Diffraction (EBSD), high temperature in situ characterization (advanced synchrotron X-ray diffraction and digital image correlation techniques), macroscopic characterization of thermomechanical properties, and multi-scale modelling integrating discrete element simulations combined with artificial intelligence algorithms to predict the life of refractory materials in service conditions. THEFRAMIC is closely linked to the French-Austrian ANR project called NanOX-ML, for Nanostructure evolution in Oxide materials at high temperature investigated with advanced X-ray scattering and Machine Learning based data analysis, and offers a unique opportunity to work in academic and industrial environments.
- **OBJECTIVES**_ - To understand, in the case of refractory ceramic materials, to what extent thermal shock resistance can be optimized through microstructure. Structural defects (dislocations, twinning, microcracks, etc.) associated with phase transition processes and thermal expansion anisotropy during processing will be identified from observations made using electron microscopy and EBSD analyses. Their impact on cracking behavior will be studied using microstrain fields obtained during mechanical tests under Scanning Electron Microscopy.
- **QUALIFICATION OF THE CANDIDATE**_ - Master degree or an equivalent diploma in materials science, materials engineering, condensed matter physics, solid-state mechanic or other closely related fields. She/he will get an ability to work independently, to plan and carry out intricate tasks. She/he will have to be part of a large multidisciplinary and international research group. Basic knowledge in crystallography is mandatory. Additional experiences on mechanical behavior of ceramics, experimental approaches of the characterization of microstructures and measurement of strain fields by Digital Image Correlation. Excellent communication skills (both written and oral) in English are required.
- **APPLICANT PROFILE**_ - The PhD student will be employed by the CNRS in France and will be located both in IRCER laboratory in Limoges and Pprime Institute in Poitiers. This position will be available from October 2025 and is offered on a fixed-term 36 months contract.
Type d'emploi : Temps plein, CDD
Durée du contrat : 36 mois
Rémunération : 1 800,00€ à 1 900,00€ par mois
Horaires:
- Du lundi au vendredi
- Travail en journée
Lieu du poste : En présentiel
Date de début prévue : 01/10/2025
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