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Nanometric mechanical properties assessment of cementitious binders with reduced environmental footprint

ABG-100871 Emploi Junior
05/11/2021 CDD 12 Mois > 25 et < 35 K€ brut annuel
Centrale Innovation
Nantes - Pays de la Loire - France
Matériaux
  • Physique
Mechanics of Materials, Civil Engineering, Indentation, Small-scale mechanical testing, Artificial intelligence
15/12/2021
Recherche et Développement

Employeur

The mission of the Ecole Centrale Nantes, ranked amongst the top engineering schools in France, is the initial and continuing training of engineers through teaching in scientific, technological, economic, as well as social and human sciences.

It provides research training leading to doctorates and other national diplomas. postgraduate.

The Ecole Centrale Nantes conducts fundamental and applied research activities in scientific fields and techniques. It contributes to the promotion of the results obtained, to the dissemination of scientific information and technical and international cooperation.

The school has 2,200 students on its campus (engineering students, continuing education students, masters, doctoral students), 400 research staff including 150 professors, researchers and teacher-researchers, who belong to 6 research laboratories.

One of these laboratories, the GeM, specializes in Civil and Mechanical Engineering. The GeM is a Joint Research Unit of Centrale Nantes, the University of Nantes and the CNRS. It contains all the skills of the Nantes Saint-Nazaire metropolis in the field of civil engineering, mechanics of materials and processes, modeling and simulation in structural mechanics.

Its current staff is around 240 people, with 80 teacher-researchers and researchers, 50 research support and support staff, around 100 doctoral students and 10 post-doc.

Poste et missions

The high level goal of the project is to assess the nanometric fracture properties of cementitious binders with reduced environmental footprint.

The construction industry, a major player in the industry worldwide and responsible for almost 20% of greenhouse gases, is increasing efforts to reduce this impact. Cement production is the main source of C02 emission since it releases nearly 0.8 t CO2eq for 1 t of material. For this reason, complex cementitious mixes are being created to reduce the environmental footprint of the Civil Engineering industry.

A PhD thesis has been started in 2020 in order to characterize the viscoelastic properties at the nanometric scale of binders with a reduced environmental footprint using a nanoindenter and supplementary physico-chemical techniques.

The postdoctoral researcher will conduct analytical and experimental research under the supervision of the Principal Investigator (PI) with close collaborators (Ass. Prof., PhD students). This specifically involves:

  • Design and synthesize cementitious materials with a reduced environmental footprint
  • Evaluate the material properties and performance of the developed materials using nanoindentation and nanoscratch techniques and supplementary techniques eventually (Xrays diffraction, porosity measurements, …)
  • Correlate nanomechanical information with macroscopic properties
  • Develop appropriate code for data analysis using artificial intelligence techniques (dimensional reduction, clustering)
  • Prepare status reports and deliverables

The successful candidate will participate in the supervision of graduate and undergraduate students (meet weekly with each student to review their research project, progress, papers and to develop path forward) and will be expected to publish articles in peer-reviewed scientific journals based on the research conducted.

This is a 12 months contract (with possible extension up to 24 months)

Mobilité géographique :

Internationale

Prise de fonction :

01/12/2021

Profil

Doctor (PhD) in Mechanics of materials.

An international experience in research is desired (during or after PhD).

The searched profile includes the following elements:

• Experimental capacities especially in instrumented nanoindentation

• Use of programming software (Python, Matlab ...)

• Ability to write in English

• Autonomous work

• Restitution of work by exchanges, reports

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