09/03/2021
The Human Resources Strategy for Researchers

Long term corrosion scientifs (H/F)

This job offer has expired


  • ORGANISATION/COMPANY
    CNRS
  • RESEARCH FIELD
    Chemistry
    Physics
    Technology
  • RESEARCHER PROFILE
    Recognised Researcher (R2)
  • APPLICATION DEADLINE
    29/03/2021 23:59 - Europe/Brussels
  • LOCATION
    France › GIF SUR YVETTE
  • TYPE OF CONTRACT
    Temporary
  • JOB STATUS
    Full-time
  • HOURS PER WEEK
    35
  • OFFER STARTING DATE
    01/06/2021

OFFER DESCRIPTION

The person recruited will be in charge of setting up and carrying out the multi-scale characterisations of these systems following the LAPA methodologies and proposing corrosion mechanisms in relation to the observations. In addition to a good knowledge of the characterisation of complex materials, he/she will therefore have an excellent command of scanning electron microscopy and analyses related to this technique, as well as Raman spectrometry. The person recruited should also have a good grounding in other characterisation techniques at the submicron (ToF SIMS imaging) and nanometric scale on FIB preparation such as transmission electron microscopy. She may also be required to accompany the team during experiments on synchrotron rings (notably with the STXM technique) or by electron spectroscopy. All the results obtained by these multi-scale techniques will be used to understand the corrosion mechanisms over the very long term. Autonomy and a sense of teamwork as well as good writing skills will be highly appreciated.

The LAPA - Laboratoire Archéomatériaux et Prévision de l'Alttération (Archaeomaterials and Weathering Prediction Laboratory, part of the NIMBE UMR3685) is competent in the study of the behaviour of weathered materials over the very long term (several centuries), in particular thanks to its expertise developed in the study of archaeological analogues and, more broadly, in the very long-term corrosion of metals. In this thematic context, the LAPA has developed and deploys specific corrosion study methodologies based on multi-scale analytical characterisation. It is thus involved in studies aimed at the development of materials to be used in multi-barrier concepts for the storage of vitrified nuclear waste and in particular in studies on altered ferrous metallic materials in contact with different media. It is within this framework that this offer of fixed-term contracts is placed.
Indeed, the use of a certain number of metallic materials is envisaged for the development of storage concepts developed by the National Agency for the Management of Radioactive Waste (Andra). The corrosion behaviour of the steel grades envisaged for the High Activity Cell (HA) is a key parameter contributing to the dimensioning of the storage containers and HA liners. It is therefore important to test the behaviour of the steel grades considered in contact with different materials in the storage (filling materials, glass, clay, etc.). For this purpose, a number of corrosion experiments have been set up by Andra. Following these tests, it is necessary to finely characterise the composition and structure of the corrosion systems obtained, from the functional scale down to the micrometric or even nanometric scale. At this stage, the methodologies adapted to the analysis of very long-term corrosion systems developed by the LAPA come into play in order to map the nature and organisation of corrosion products on cross sections and by coupling analytical techniques (optical and electronic microscopy, Raman microspectrometry, X-ray microdiffraction and micro-XRF) and statistical and chemometric approaches for the interpretation of the results.

The person hired will work in an interdisciplinary team of around 20 people, based at the CEA Saclay site. She will be able to carry out missions in France or abroad to access the adapted synchrotron light lines and the various analytical platforms to which the LAPA has access. It will have to be able to work closely with ANDRA staff.

More Information

Eligibility criteria

Corrosion and material sciences. Long-term corrosion mechanisms of ferrous alloys.
Common practice of SEM-FEG EDS and Raman Spectrometry, MET, DRX
Mastery of synchrotron techniques (STXM) or mass spectrometry (SIMS and ToF SIMS is a plus)
Autonomy and teamwork
Ability to write summary reports

Additional comments

NA

Web site for additional job details

Required Research Experiences

  • RESEARCH FIELD
    Chemistry
  • YEARS OF RESEARCH EXPERIENCE
    1 - 4
  • RESEARCH FIELD
    Physics
  • YEARS OF RESEARCH EXPERIENCE
    1 - 4
  • RESEARCH FIELD
    Technology
  • YEARS OF RESEARCH EXPERIENCE
    1 - 4

Offer Requirements

  • REQUIRED EDUCATION LEVEL
    Chemistry: Master Degree or equivalent
    Physics: Master Degree or equivalent
    Technology: Master Degree or equivalent
  • REQUIRED LANGUAGES
    FRENCH: Basic
Work location(s)
1 position(s) available at
Nanosciences et innovation pour les matériaux, la biomédecine et l'énergie
France
GIF SUR YVETTE

EURAXESS offer ID: 613375
Posting organisation offer ID: 20325

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