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Thesis
Home   /   Thesis   /   Development of new formulations of glass seals in the context of renewable energies

Development of new formulations of glass seals in the context of renewable energies

Condensed matter physics, chemistry & nanosciences Solid state physics, surfaces and interfaces Ultra-divided matter, Physical sciences for materials

Abstract

In the frame of renewable energies and the energy mix, hydrogen production has a very important character. Its production by water vapor electrolysis at around 800°C requires specific seals. Indeed, they must be compatible with both high temperatures, the materials to be sealed and various atmospheres (H2, O2, H2O...). They must also present specific physical properties (thermal, electrical, mechanical). Therefore, oxide glasses and glass ceramics are the reference materials for such seals.

The objective of this PhD thesis is to develop new innovative formulation(s) of glass and/or glass vitroceramic as a seal, specifically adapted to the electrolysers designed by CEA/LITEN in Grenoble. The doctoral student, based mainly at CEA/ISEC in Marcoule (Gard), within the Vitrification and High Temperature Processes Studies Department, will benefit from the department's expertise in the development of glass formulations. Based on previous studies, he will be in charge of the definition, development and physicochemical characterization of glass and glass ceramic materials: high temperature synthesis, microstructural characterizations (SEM, XRD...) and characterization of physical properties (thermal, electrical, rheological and mechanical). Characterizations and tightness tests on a mock-up will be carried out at CEA/LITEN in Grenoble.

At the end of the thesis, there are many job opportunities in the materials industry (glass, glass-ceramics...) as well as in the field of renewable energies (hydrogen sector).

Laboratory

Département de recherche sur les technologies pour l’enrichissement, le démantèlement et les déchets
Service d’études de vitrification et procédés hautes températures
Laboratoire d’études et de développement de matrices de conditionnement
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