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Julien Phother-Simon

Julien Phother-Simon

Research Assistant in Polymer Characterization

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  • Timeline

  • About me

    Ph.D | Materials Scientist and Engineer | Specialization in R&D and High Temperature Corrosion of Metallic Materials

  • Education

    • University of Evry-Val d'Essonne

      2009 - 2011
      Two-year technical degree Science and engineering of materials

    • University of Burgundy

      2014 - 2014
      Master's degree Nanotechnologies and Nanobiosciences

      Nanotechnologies : - Study of different processes of nanofabrication. - Characterization at nanoscale.Nanobiosciences : - Biology at nanoscale.

    • ESIREM - Ecole Supérieure d'Ingénieurs Numérique et Matériaux

      2011 - 2014
      Master's degree Materials science and Sustainable Development

      Materials Science : - Study and understanding of the different types of materials : Polymers, metals, glass and ceramics. - Characterization methods for the different types of materials : Tensile machine, SEM, XRF, UV spectrometer ...Materials Engineering : - Knowledge about methods of production of the different types of materials.Materials and environment : - Study of life cycles of the different types of materials. - Study of environmental issues of the… Show more Materials Science : - Study and understanding of the different types of materials : Polymers, metals, glass and ceramics. - Characterization methods for the different types of materials : Tensile machine, SEM, XRF, UV spectrometer ...Materials Engineering : - Knowledge about methods of production of the different types of materials.Materials and environment : - Study of life cycles of the different types of materials. - Study of environmental issues of the different types of materials during their life span. Show less

  • Experience

    • Synchrotron SOLEIL

      Apr 2011 - Jun 2011
      Research Assistant in Polymer Characterization

      Mechanical characterization of a polymer by using of a biaxial tensile machine.Objective: I was responsible for the study of the strain induced in a polymer during biaxial tensile cycles by using XRD.Application : Flexible support for microelectronics. This work was a preliminary investigation regarding the mechanical behavior of the polymer .Tools and techniques utilized :- Biaxial tensile machine- Diffractometer

    • National Institute for Materials Science

      Apr 2013 - Jun 2013
      Research Assistant in Metallurgy

      Design and development of high entropy alloys containing 5 different elements: Aluminum, Silicon, Titanium, Zirconium and Molybdenum.Objective: I was responsible for testing different equimolar alloy compositions containing 5 elements to obtain a single phase alloy. Application: Thermal coating.Tools and techniques utilized: - Arc melting (production of alloys) - X-ray fluorescence (XRF) and Scanning Electron Microscope (SEM).

    • Lawrence Berkeley National Laboratory

      Feb 2014 - Jul 2014
      Research Assistant in Optical Modelling

      Optical modelling for optimization of water splitting.Objective: I was responsible for modelling different nanostructures at the surface of the photoelectrodes in order to improve their efficiency.Application: Photoelectrodes with optimized geometry for hydrogen production.Tools and techniques utilized: - FDTD Solutions Lumerical: 3D Maxwell solver for analyzing the interaction between UV, visible, and IR radiation and complex structures having wavelength scale features. - GSolver: Diffraction problems solver related to periodic grating structures illuminated by a monochromatic plane wave. Show less

    • Chalmers University of Technology

      Feb 2015 - Dec 2021

      I have defended my thesis the 25th of September 2020 with the following title: "High-Temperature Corrosion Behavior in Biomass- and Waste-Fired Boilers".Objectives: I was responsible for the investigation of grain boundary attacks occurring in stainless steels when exposed to a corrosive environment (continuous KCl deposition) at high temperatures (600 °C).I was part of the investigation regarding the role of chlorine on the corrosion experienced by stainless steels. I was responsible for performing the experiments and the SEM analyses.I was part of the investigation regarding different corrosion mitigation techniques tested in biomass- and waste-fired boilers. I was responsible for analyzing and assessing the samples after having been exposed in boilers.Tools and techniques utilized:- Scanning Electronic Microscope (SEM)- Broad Ion Beam (BIB)- Focus Ion Beam (FIB)- 3D reconstruction- X rays diffractometer (XRD)- Ion chromatography- Lab furnaces with a controlled atmosphere Show less

      • High-temperature corrosion researcher

        Oct 2020 - Dec 2021

      • Doctoral student in high temperature corrosion

        Feb 2015 - Oct 2020

    • Condesign AB

      May 2022 - Mar 2024
      Materials Technology Consultant

    • Volvo Trucks

      May 2022 - now
      Materials Technology Engineer

      Field: Steel and SurfacesSkills and services: Failure analysis, residual stress measurements, and material characterization.Focus: Forged components, axles and beams, and steering knuckles.

  • Licenses & Certifications