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M/F PhD Electromagnetic shutter fabricated by ceramic-metal 3D printing

This offer is available in the following languages:
Français - Anglais

Date Limite Candidature : jeudi 14 juillet 2022

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General information

Reference : UMR5026-FREBON0-118
Workplace : PESSAC
Date of publication : Thursday, June 23, 2022
Scientific Responsible name : Jean-Marc Heintz
Type of Contract : PhD Student contract / Thesis offer
Contract Period : 36 months
Start date of the thesis : 1 November 2022
Proportion of work : Full time
Remuneration : 2 135,00 € gross monthly

Description of the thesis topic

This PhD thesis aims at realizing a microwave electromagnetic shutter made of localized dielectric ceramic pads of BaxSr1-xTiO3 type (BST), connected with metallic circuits. One of the first challenges of this work will be to define on the one hand, the composition of the BST phase, and on the other hand, the conditions of densification of this ceramic alone and then with a metallic substrate. Then, it will then be necessary to define the additive manufacturing technique (sputtering or extrusion of filaments) which will allow to control the geometry of these assemblies. It will also be necessary to ensure a localized sintering of the ceramic parts in order to optimize their dielectric properties. The latter should have a size of about 100 µm in diameter and a thickness of a few tens of microns. Collaborations are planned with several laboratories specialized in microwave components (IETR, Telecom Paris, CEA LETI) and will benefit from the help of a post-doctoral student from the XLIM laboratory in Limoges for the simulations and electromagnetic characterizations.

Work Context

Founded in 1995, the lnstitute for Condensed Matter Chemistry of Bordeaux activities include both fundamental and applied research and focus on 3 domains : Solid State Chemistry, Materials Science and Molecular Science. ICMCB has extensive expertise in design, synthesis, shaping and characterisation of materials, with the goal to explore and optimise their functionalities. This wide scope and a large, complementary spectrum of methods available, generate fruitful synergies among our faculty (researchers, engineers and technical staff) - contributing to the outstanding reputation of the ICMCB.

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