PhD student (M/F) - Solidification of plaster foams: rheology and structure

Updated: 14 days ago
Location: Villeurbanne, RHONE ALPES
Job Type: FullTime
Deadline: 21 May 2024

1 May 2024
Job Information
Organisation/Company

CNRS
Department

Institut Lumière Matière
Research Field

Chemistry » Physical chemistry
Physics » Chemical physics
Physics » Biophysics
Researcher Profile

First Stage Researcher (R1)
Country

France
Application Deadline

21 May 2024 - 23:59 (UTC)
Type of Contract

Temporary
Job Status

Full-time
Hours Per Week

35
Offer Starting Date

1 Sep 2024
Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme
Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

The PhD will take place in Institut Lumière Matière, a lab depending from CNRS and University Claude Bernard Lyon 1, located in Villeurbanne. The project is hosted in the Liquids and Interfaces team of ILM and involves a collaboration with the SOPRANO team. The PhD will be funded by ANR, in the context of the project ABC2FOAM, in collaboration with LPS Orsay and MATEIS (INSA Lyon), where short stays are expected during the PhD. We are looking for a candidate with a taste for experiments, ideally with a background in soft matter physics or fluid mechanics.

Foams are made of liquid or solid containing gas bubbles. Liquid foams have numerous liquid-gas interfaces, so their structure and dynamics are ruled by liquid surface tension. Solid foams are porous materials used for properties like lightness, low thermal conductivity or permeability. Solid foams are generally elaborated from liquid foams that solidify, and the intermediate solidifying foams have intriguing properties ruled both by surface tension and bulk elasticity. In particular, liquid foams age due to a process called coarsening; foam solidification will arrest this process, but we do not know exactly when and how.

The objective of the PhD project is thus to investigate the rheology and the structure of solidifying foams made from a plaster reactive suspension. We will monitor the foam evolution upon solidification using three different techniques: 1) Raman spectrometry to follow the corresponding chemical reaction, 2) rheology to follow the change in mechanical properties (elastic modulus and yield stress) and 3) video imaging to characterize the foam structure (statistics for bubble size, number of neighboring bubbles, etc.).


Requirements
Research Field
Chemistry
Education Level
Master Degree or equivalent

Research Field
Physics
Education Level
Master Degree or equivalent

Research Field
Physics
Education Level
Master Degree or equivalent

Languages
FRENCH
Level
Basic

Research Field
Chemistry » Physical chemistry
Years of Research Experience
None

Research Field
Physics » Chemical physics
Years of Research Experience
None

Research Field
Physics » Biophysics
Years of Research Experience
None

Additional Information
Website for additional job details

https://emploi.cnrs.fr/Offres/Doctorant/UMR5306-MARLEM-005/Default.aspx

Work Location(s)
Number of offers available
1
Company/Institute
Institut Lumière Matière
Country
France
City
VILLEURBANNE
Geofield


Where to apply
Website

https://emploi.cnrs.fr/Candidat/Offre/UMR5306-MARLEM-005/Candidater.aspx

Contact
City

VILLEURBANNE
Website

http://ilm.univ-lyon1.fr/

STATUS: EXPIRED