• Subject: "Multi-scale modeling of UO2 plasticity: on the role of irradiation defects"

    Description: The main goal of the Ph.D thesis is to develop a constitutive model based on dislocation interactions with irradiation defects. This model is needed to compute inelastic strains induced at high temperature and under irradiation. First, interaction between defects will be characterized using the LAMMPS molecular dynamics (MD) package. Then, atomisticallyinformed dislocation dynamics (DD) simulations will be performed to quantify strain hardening induced by irradiation defects using the NUMODIS code. Finally, the constitutive law and its parameters will be integrated within the finite-element (FEM) framework developed at the laboratory.

    Application: CV and application letters should be sent to bruno.michel@cea.fr and jonathan.amodeo@insa-lyon.fr.

    For futher information on the subject, see document below:


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  • Subject’s title: "Nano-mechanical and piezoelectric studies on semiconductor nanowires"

     

    Description: The MNO group of IM2NP at Aix-Marseille Université offers a PhD thesis focusing on the mechanical and piezoelectric properties of semiconductor (GaN, ZnO) nanowires.Within the framework of this thesis, the successful candidate will study the nano-mechanical (elasticity, plasticity, fracture) and piezoelectric behavior of individual nanostructures using unique experimental techniques: (i) in situ atomic force microscopy coupled with nano-focused X-ray diffraction at 3rd generation synchrotrons (ESRF, SOLEIL, …) and (ii) in situ electrical actuation during TEM imaging using a novel TEM sample holder in an aberration corrected FEI TITAN. The experiments will be accompanied by finite element method simulations.

    Application: a CV, two letters of recommendation, and a statement of research interests should be sent to michael.texier@univ-amu.fr and thomas.cornelius@im2np.fr.

    Futher information on the subject, see documents below (French (Fr) and English (En) version are available):

    Fr: « Sujet Thèse_Texier_Cornelius.pdf »

    En: « Thesis subject_Texier_Cornelius.pdf »


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  • In the ‘Micro- and Nanomechanics’ group of Assoz.Prof. Dr. Daniel Kiener the ERC Consolidator Grant TOUGHIT focusses on the development of superior strong and tough composite materials by tailoring microstructure and interface properties. In this regard, they are looking for:

    - Postdoctoral: "In-situ TEM analysis of crack tip processes"

    The candidate will apply quantitative in-situ transmission electron microscopy to analyze the fundamental processes taking place during nucleation and propagation of cracks in metallic nanocomposites.

    For futher information: « Post doc job opening 1.pdf »

    - Postdoctoral: "Local strain fields near crack tips"

    The candidate will apply strain mapping techniques in the transmission electron microscope to analyze the local strain fields around cracks in inhomogeneous metallic materials.

    For futher information: « Post doc job opening 2.pdf »


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  • From September 26th to 28th 2018, Europe´s Material Scientists and Engineers will meet at the Materials Science and Engineering Congress (MSE) at the Darmstadt University of Technology, Germany. And a special focus on the following symposia:

    C05 - Small scall in situ mechanical testing:

     Small scale and in situ mechanical testing techniques are becoming more and more important for characterizing and understanding the mechanical behavior of a wide variety of materials. There is a rapid development of innovative in situ and small scale testing techniques, which allow further insights in the acting deformation processes and dominating deformation mechanisms.

    This symposium will mainly focus on both the development of new advanced in situ testing techniques and the further application of these techniques to understand the mechanical behavior of materials. Of special interest are combined experimental and simulation approaches, specifically focusing on the influences of interfaces on the material behavior. Topics of interest include but are not limited to:

    • Advanced small scale testing techniques (e.g. Nanoindentation, µ-compression, µ-tension testing).
    • Testing and understanding the deformation behavior of interfaces: Interface glide and migration in deformation of interface-dominated structures, i.e. grain and phase boundaries.
    • Coupling between deformation and interface chemistry.
    • Monotonic and cyclic testing; interrupted monitoring.
    • Testing at elevated temperatures and under various environmental conditions.
    • New testing approaches for fracture toughness determination.
    • Correlation high resolution microscopy analysis and in situ testing using optical microscopy, SEM, TEM or X-ray.
    • Evaluation of localized phenomena by use of digital image correlation, acoustic and thermal measurements or combined full-field measurements.
    • Correlation between experiments and simulations.

    Symposium Organizers:

    Karsten Durst, Physical Metallurgy, TU Darmstadt.

    Verena Maier-Kiener, Department Physical Metallurgy and Materials Testing, Montanuniversität Leoben.

    Rebecca Janisch, ICAMS; Ruhr University Bochum.

    Afrooz Barnoush, NTNU, Norwegian University of Science and Technology.

    Confirmed keynote speaker:

    Dr. Steffen Brinckmann from MPIE.

    Dr. Marco Sebastiani from University Roma Tre.

    Abstract deadline: February 28th, 2018

    Further information on the abstract submission can be found under https://www.mse-congress.de/topics/c-characterization/


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  • The department of Mechanical and Industrial Engineering is looking for postdoctoral researcher and a PhD student:

    Postdoctoral:

    "Environmentally assisted cracking of advancd high strength alloys (SO IV-21/18)" , Application deadline is 7 March 2018.

    Please find further information on the subject and application here.

    PhD:

    "Environmentally Assisted Cracking of Additive Manufactured Corrosion Resistant Alloys (IV-79/18)", Application deadline is February 28th, 2018.

    Please find further information on the subject and application here.

     


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