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Phd student (M / F) - Realization and study of controlled wettability surfaces for reinforced water condensation

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Français - Anglais

Date Limite Candidature : mardi 25 mai 2021

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General information

Reference : UMR5129-MARCLO-039
Workplace : GRENOBLE
Date of publication : Tuesday, April 13, 2021
Scientific Responsible name : GOURGON Cécile
Type of Contract : PhD Student contract / Thesis offer
Contract Period : 36 months
Start date of the thesis : 1 October 2021
Proportion of work : Full time
Remuneration : 2 135,00 € gross monthly

Description of the thesis topic

The surfaces with controlled wettability make it possible to promote or prevent water condensation when the sample is subjected to a mist-type flow. Water resourcing is a global issue and it is now necessary to consider all possible solutions to promote access to water in arid regions. It is known from the study of certain insects and plants living in deserts, that surfaces which combine different wettability make it possible to increase the collection of condensation water. The current means of micro-nanotechnologies make it possible to produce such surfaces in a controlled manner. The objective of the thesis is to combine on the same surface areas of different wettability by different technological processes, and to study the behavior of water in terms of condensation under a fog in order to optimize as much as possible the efficiency of water. collection. The approaches will therefore be both technological with the application aspect of optimizing the water collection rate, but also more fundamental with the study of the dynamic behavior of the drops on this type of surface. The interest of this thesis, compared to the state of the art, will be to provide answers as to the optimal morphology of the substrate to obtain a high collection rate.

Work Context

The LTM is a joint CNRS / Université Grenoble Alpes research unit, comprising 4 teams, 2 of which are research and employs around 90 people. The laboratory is located at the CEA-LETI site in Grenoble. The thesis is part of the Micro-Nanotechnology pole for Health, Energy and the Environment (MINASEE). The doctoral student will have access to all the technological platforms to which the LTM has access: PTA, 200-300 mm platform, LETI characterization platform, etc. The objective of the thesis is to study the rate of H2O collection on surfaces derived from different types of materials, it will benefit from the expertise of all the researchers and engineers of the cluster. It will be integrated into all of the cluster's doctoral / post-doctoral students.

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