Multi-Physics Coupling In Ionic Gels

Universities and Institutes of France
January 05, 2023
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  • Organisation/Company: ENSTA Paris – Institut Polytechnique de Paris
  • Research Field: Engineering Physics Technology › Materials technology
  • Researcher Profile: First Stage Researcher (R1) Recognised Researcher (R2) Established Researcher (R3) Leading Researcher (R4)
  • Application Deadline: 05/01/2023 00:00 - Europe/Athens
  • Location: France › Palaiseau
  • Type Of Contract: Temporary
  • Job Status: Full-time
  • Offer Starting Date: 01/10/2023
  • Context:

    Ionic gels containing free ions have appeared as a new kind of soft smart materials and potential applications ranging from flexible actuators and energy harvesters to gel electronics have been found. Recently, a new phenomenon – iono-magnetic coupling, has been observed in ionic gels, where a varying magnetic field results in an electric potential difference (voltage) in gels. Different from the conventional metals where the conversion between electric field and magnetic field is realized by electron movement, the observed conversion in ionic gels is realized by ion movement, which is common in biological systems. Moreover, due to the soft nature of gels, mechanical stress/strain may also have impact on gels, and this will lead to a complexed multi-physics coupling (i.e., iono-magneto-mechanical) behaviour. Furthermore, based on the similarity between ionic gels and biological tissues and organs (both are soft network material containing fluid and ions and function by ions), ionic gels can be a sample system of the biological system. Thus, studying the multi-field coupling behaviours of ionic gels can help us understand the function mechanisms of biological systems, which will lead to various bio-medical applications. Last but not least, the observed multi-physics coupling behaviour of ionic gels also has promising applications in human-machine interface technology, where signal transduction between ions and electrons is crucial. Unfortunately, studies in this field are seldom reported in the literature.

    Project:

    This project aims to systematically study the multi-field (i.e., iono- magneto-mechanical) coupling behaviours of ionic gels. Biocompatible gel samples with different geometries and free ions will be tested. Besides the macroscopic measurement of gel's output electricity by digital multi-meter and surrounding magnetic field by Hall probe, microscopic observations of ion movement in gels will also be conducted by various advanced techniques such as fluorescence imaging. Besides experimental studies, numerical simulations of ion movement and interaction at ion-electron interface will also be developed to gain deeper understanding of the coupled iono-magneto-mechanical behaviours of ionic gels and reveal the function mechanisms of biological systems.

    Interest and originality: strong multi-disciplinary research; state-of-art multi-field testing and characterization methods; advanced material modelling techniques; broad applications ranging from human-machine interface to sensing and navigation

    Funding category: Financement public/privé

    Chinese Scholarship Council (CSC)

    PHD title: Doctorat de Mécanique

    PHD Country: France

    Offer Requirements Specific Requirements

    Applicants must be:

    citizens of the People's Republic of China; Chinese students enrolled in Master's programs at Chinese universities or any other universities abroad, including those enrolled in a Master's program at the Institut Polytechnique de Paris.

    -> basic knowledge of mechanics and materials science

    Contact Information
  • Organisation/Company: ENSTA Paris – Institut Polytechnique de Paris
  • Organisation Type: Higher Education Institute
  • Country: United Kingdom
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