Tuning colloidal gels with ultrasound (PhD contract, M/F)

Updated: 28 days ago
Location: Lyon 07, RHONE ALPES
Job Type: FullTime
Deadline: 22 Apr 2024

2 Apr 2024
Job Information
Organisation/Company

CNRS
Department

Laboratoire de Physique
Research Field

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

First Stage Researcher (R1)
Country

France
Application Deadline

22 Apr 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?

HE / MSCA
Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

The PhD candidate will work within CoCoGel, a Marie Sklodowska-Curie Industrial Doctoral Network (DN) (HORIZON-MSCA-2022-DN-01-01) dedicated to Controlling Colloidal Gels for Novel Sustainable Materials.
CoCoGel aims to provide integrated training for early career researchers, enabling them to achieve scientific excellence and set the foundations of their future careers.

Applicants must hold a Master's Degree in Physics/Chemistry/Chemical Engineering/Materials science or other relevant disciple. A very competitive EU funding is offered for 36 months. To qualify for the positions, the applicant cannot have resided or carried out your main activity (work, studies, etc.) in the France for more than 12 months in the 36 months preceding the recruitment start date.

High-power ultrasound has long been known to disrupt particulate aggregates with applications to resuspension, filtration and cleaning, optimization of food products, and drug delivery. However, the underlying physical mechanisms remained unclear. Recently, we quantified the impact of high-power ultrasound on model colloidal gels, revealing substantial softening under ultrasonic vibrations associated with the nucleation of micron-sized cracks within the gel network [Physical Review X 10, 011028 (2020)].

Within “CoCoGel” (https://cocogel.iesl.forth.gr/ ), a Marie Sklodowska-Curie Industrial Doctoral Network, a PhD position is available at École Normale Supérieure de Lyon in collaboration with Valeria Garbin at the university TU Delft and Fabrice Toussaint at the Holcim Innovation Center.

The PhD candidate will investigate the properties of “rheo-acoustic” gels, i.e., colloidal gels that are mechanically responsive to ultrasound. Experiments will consist in tracking the system response to ultrasound through structural characterization (microscopy and light or X-ray scattering) and mechanical measurements (rheology and microrheology).

The PhD candidate will also explore some applications of the above concepts to industrial systems. In particular, the PhD candidate will spend about 15 months at the Holcim Innovation Center (Saint-Quentin-Fallavier, Fr) to use high-power ultrasound in order to control and tune the flow properties of cement pastes, a major current issue to reduce the carbon footprint of concretes. The PhD candidate will also explore application in Food science for 3 mounts at Unilever's global Foods Innovation Centre (Wageningen, NL)


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
Additional comments

/


Website for additional job details

https://emploi.cnrs.fr/Offres/Doctorant/UMR5672-THOGIB-006/Default.aspx

Work Location(s)
Number of offers available
1
Company/Institute
Laboratoire de Physique
Country
France
City
LYON 07
Geofield


Where to apply
Website

https://emploi.cnrs.fr/Candidat/Offre/UMR5672-THOGIB-006/Candidater.aspx

Contact
City

LYON 07
Website

http://www.ens-lyon.fr/PHYSIQUE/

STATUS: EXPIRED