2021-… :  Research engineer – civil servant of Université Gustave Eiffel (UGE) : Imaging and measurements for the analysis of multi-physical tests on structures and materials at the Navier laboratory.

2017-2020 : PhD thesis – Andra / IRCER / Navier: Development and 3D printing of geopolymer matrix composites.

2017 : Engineer – permanent contract with AGAP2: assignment in Areva’s task force in Le Creusot.

2014-2015 : Metallurgy engineer – permanent contract with Fives Keods: implementation of an automated surface inspection system at Arcelor-Mittal (Dunkerque and Dudelange).

2010-2013 : Engineering school – INSA Lyon – Materials Science and Engineering (ceramics, metals, polymers, composites).

2008-2010 : DUT – Physical Measurements – Saint-Étienne.

Nano-indentation: sample preparation, testing, teaching, and practical sessions.

Imaging: setup and development of experiments with cameras and result analysis, including image correlation, motion capture, creep tests, dynamic tests (vibrations), and displacement measurement of masonry structure stones.

Development of experimental tests using micrometric stages, cameras, actuators, and sensors (LVDT, force). Human-machine interface with LabVIEW and data processing in Python.

Material study: geopolymers, wood, cement, ceramics, etc.

Safety officer and management of experimental rooms for the Multi-Scale team.

see HAL for a comprehensive list

Publications :

2024: Charlotte Roux, Julien Archez, Corentin Le Gall, Myriam Saadé, Adelaïde Feraille, et al.. Towards Sustainable Material: Optimizing Geopolymer Mortar Formulations for 3D Printing: A Life Cycle Assessment Approach. Sustainability, 2024, 16 (8), pp.3328.

2022 : Sophie Jung, Siavash Ghabezloo, Michel Bornert, Amade Pouya, Mathias Lebihain, J. Archez et al.. A new experimental device developed to study the creeping behavior of a rock joint under shear stress. Eurock 2022 – Rock and Fracture Mechanics in Rock Engineering and Mining, Sep 2022, Espoo (Finlande), Finland. pp.012065,

2021: Julien Archez, Rémi Farges, Ameni Gharzouni, Sylvie Rossignol. Influence of the geopolymer formulation on the endogeneous shrinkage. Construction and Building Materials, 2021, 298, pp.123813.

2021 : Julien Archez, Sébastien Maitenaz, Leo Demont, M. Charrier, Romain Mesnil, et al.. Strategy to shape, on a half-meter scale, a geopolymer composite structure by additive manufacturing. Open Ceramics, 2021, 5, pp.100071.

2021 : Julien Archez, Nathalie Texier-Mandoki, Xavier Bourbon, Jean-François F Caron, Sylvie Rossignol. Shaping of geopolymer composites by 3D printing. Journal of Building Engineering, 2021, 34, pp.101894

2020 : Julien Archez, Nathalie Texier-Mandoki, Xavier Bourbon, Jean-François Caron, S. Rossignol. Influence of the wollastonite and glass fibers on geopolymer composites workability and mechanical properties, Construction and Building Materials, 2020, 257, pp.119511.

Thesis :

Julien Archez. Formulations de composites à base de liants basse température type géopolymère à base d’argilite et de différents renforts : réalisation d’une pièce par fabrication additive. Matériaux. Université de Limoges, 2020. Français.

Pattent : 

 J. Archez, N. Texier-Mandoki, X. Bourbon, J.F. Caron et S. Rossignol, “Composition pour la formation de composite à matrice géopolymère, procédé de fabrication de ce composite et ses utilisations”, FR1905248, 2019.