Post-doctoral candidate on Bio-inspired hybrid laser smart texturing of SLIPS for anti-icing properties
11 Apr 2024
Job Information
- Organisation/Company
Ecole Centrale de Lyon- Research Field
Other- Researcher Profile
Recognised Researcher (R2)- Country
France- Application Deadline
2 May 2024 - 12:00 (Europe/Paris)- 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
Research field presentation:
Secondary refrigeration is an effective way to drastically reduce the quantity of primary refrigerant fluid used while improving energy efficiency by storing and transporting energy dense secondary fluids. These ice slurries, made of ice crystals suspended in aqueous solution, are unfortunately not yet widespread due to an over-investment related to scraped surface or supercooling type generators. Within this COOLISSE project, our objective is thus to participate in the energy optimization of the refrigeration sector by designing a new type of ice slurry generator. Our aim is therefore to develop stainless steel surfaces on which the ice formed could be carried away by the flow of the fluid, without rotating scraper blades. These original non-wetting micro/nanostructured surfaces, inspired from nature, displaying anti-icing properties will be obtained by an original and efficient combination of processes selected from the following: additive manufacturing (to yield micro-structures), subtractive processes based on electrochemical etching and photolithography and finally femtosecond laser ablation (to reach nanometer scale roughness) that will allow obtaining a multiscale and very dense textured stainless steel surface. These surfaces will be then infused by inert liquid in order to obtain slippery infused surfaces (SLIPS). The second objective of the project is to develop advanced and breakthrough knowledge on the surface characterization under flow at low temperature [-15°C to 0°C]. The potential in anti-icing applications of the designed surfaces will be proven by investigating their action mechanisms on ice formation, analyzing the freezing time, adhesion strength and nucleation in the freezing process. In parallel a comprehensive numerical method will be developed to describe the thermal equilibrium state, heat flux and gas-solid-liquid interface changes during freezing and phase change. An empirical correlation of the data obtained will also be investigated allowing access to additional feedback to optimize the design of our surfaces. Environmental impact and potential gain of these surfaces on slurry fabrication process will also be compared to usual processes using multiple criteria analyses like Life Cycle Assessment (LCA).
Description of the activities to be done by the postdoc in LTDS:
- Bibliographic review on bio-inspired SLIPS surfaces
- Femtosecond laser multiscale surface texturing of bioinspired SLIPS surfaces
- 3D additive manufacturing of complex surfaces
- Hybridation of both processes of surface texturing
- Wetting and adhesion characterization of textured and SLIPS surfaces
Main research field:
- Materials
- Surface Texturing
- Laser processes
- Femtosecond laser
- Additive manufacturing
- Wetting
- Adhesion
- Slippery Liquid-Infused Porous Surfaces
- Tribology
- Physics
- Biomimicry
Requirements
- Research Field
- Physics » Surface physics
- Education Level
- PhD or equivalent
Skills/Qualifications
Your profile:
- You have a PhD, preferably with distinction (or international equivalent) in Applied Physics, Photonics, (Mechanical or Materials or Electrical) Engineering, a closely related discipline;
- Good knowledge/demonstrated awareness of fundamental aspects of laser-material processing and/or physics of wetting are an advantage;
- Experience in using a range of technologies/techniques for surface characterization, e.g. SEM, EDX, AFM, wetting measurements, electrochemical techniques, etc., would be an advantage;
- Ability to work in a laboratory environment and undertake experimental research;
- Good knowledge/demonstrated awareness of (numerical) modelling;
- Excellent analysis skills and an analytical mind-set, as well as excellent communication skills, including written.
- French or English language proficiency. If you have not graduated in a country where French/English is the first language, then you will need to demonstrate your French/English proficiency by having passed IELTS or TOEFL. The minimum overall score for IELTS is at least 6.5 with no component being below 5.5.
- Languages
- ENGLISH
- Level
- Excellent
- Research Field
- Physics » Surface physics
- Years of Research Experience
- 1 - 4
Additional Information
Benefits
2 305€ net salary
Selection process
Interview with candidates: during May
Choice of candidate: during June 2024
Desired start of post-doc: 01/09/2024
Work Location(s)
- Number of offers available
- 1
- Company/Institute
- ECOLE CENTRALE DE LYON
- Country
- France
- City
- ECULLY
- Postal Code
- 69130
- Street
- 36 AVENUE GUY DE COLLONGUE
- Geofield
Where to apply
- Website
https://ecolecentraledelyon.recruitee.com/
Contact
- State/Province
France- City
Ecully- Website
http://www.ec-lyon.fr- Street
36, av Guy de Collongue- Postal Code
69130
[email protected]
STATUS: EXPIRED