• Research at the Institute of Metallurgy and Materials Physics at RWTH Aachen University focuses on fundamental and applied materials physics. Materials are characterised, modelled and improved in interdisciplinary collaborations at national and international level and using state-of-the-art equipment.

    We are looking for:
    An enthusiastic candidate who

    • holds (or will soon hold) a doctoral degree in Materials Science, Materials Engineering or Physics
    • is interested in working on fundamental questions of plastic deformation to ultimately support discovery of new materials for extreme conditions
    • is keen to apply different computational methods at the atomic scale (DFT and/or MD)
    • has a very good command of English (and preferably also German) and enjoys working in a team

    Your responsibilities and the project:

    The vast majority of engineering materials are based on metallic alloys centred around single elements, e.g. Fe, Al, Mg, Ti or Ni. As even the most sophisticated of these are reaching their performance limits, we need to develop completely new classes of materials. With >100,000 binary and ternary systems, intermetallics are a promising candidate; but how can those combining strength and ductility be found?

    These research positions will constitute a team effort at IMM as part of the ERC Starting Grant ‘FunBlocks’ to explore plastic deformation in hard crystals. This will involve mechanical analysis of complex intermetallic crystals from one binary and one ternary system to systematically quantify and compare the properties of their small building blocks and their combinations in large unit cells. This may be done by calculations of generalized stacking fault energies as well as dynamics of dislocation motion to understand the critical mechanisms and configurations of the dislocation cores and how these are affected by the local structure.

    Ultimately, the aim is to provide understanding of essential intermetallic building blocks and enable a data- and knowledge-driven search for new structural materials.

    Depending on previous post-doc experience, this position may be combined with a group leader position, including supervision of doctoral students and funding acquisition.

    We offer:

    The position is offered on a temporary contract for a fixed term of initially 24 months (full-time, extendable to a maximum of 60 months). It is also available as part-time employment per request. The salary is based on the German public service salary scale (TV-L). RWTH Aachen University is certified as a "Family-Friendly University". We welcome applications from all suitably qualified candidates regardless of gender. We particularly welcome and encourage applications from women, disabled persons and ethnic minority groups, recognizing they are underrepresented across RWTH Aachen University. The principles of fair and open competition apply and appointments will be made on merit. RWTH Aachen is an equal opportunities employer. We therefore ask you not to include a photo in your application. For information on the collection of personal data pursuant to Articles 13 and 14 of the General Data Protection Regulation (GDPR), please visit: http://www.rwth-aachen.de/dsgvo-information-bewerbung

    More information and application at the following link:
    https://www.imm.rwth-aachen.de/fileadmin/IMM-Web/Resources/Public/Stellenangebote/Ausschreibung_Crystal-LEGO_2019_12_11.pdf


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  • We would like to draw your attention to the symposium N on “Advanced small-scale mechanical characterization: strength, plasticity, fracture and fatigue”, which is organized for you with support from the GdRI Mecano Network.

    It will take place during the upcoming spring meeting of the European Materials Research Society (Strasbourg, May 25-29, 2020). We are looking forward to your active participation!

    Contributions from PhD students are highly encouraged, as several awards are planned for the best student talks and posters of the symposium.

    Hot topics:

    • Small-scale plasticity, fracture and fatigue testing
    • Advances in in-situ and ex-situ micro/nanomechanical testing
    • Recent advances in characterization methods, including TEM, SEM, AFM, synchrotron techniques
    • Advances in numerical technical methods
    • Complex loading situations
    • Applications to nuclear materials
    • Applications to nano-objects, thin films and bulk nanostructured materials
    • Applications to crystalline, amorphous or hybrid materials

     

    More information and submission at:

    https://www.european-mrs.com/advanced-small-scale-mechanical-characterization-strength-plasticity-fracture-and-fatigue-emrs

    Deadline:

    The abstract submission for talks and posters is opened until January 15, 2020.


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  • Symposium on “ Advanced modelling techniques: scale bridging” at the EMMC17,  in Madrid (Spain). It will be held from May 27th to May 29th, 2020. 

    Short description: 

    Multi-scale techniques and scale bridging play a key role in connecting the macroscopic behaviour of materials directly to the material microstructure and elementary deformation processes. Many different classes of scale bridging methods have been developed for this purpose, from the atoms to the continuum scale. These generally involve multiple disciplines, e.g., engineering, computational mechanics, mathematics, physics, chemistry, and so on. This session is intended as a forum for bringing together scientists from different disciplines working on multi-scale techniques and scale-bridging problems in mechanics of materials, including both spatial, as well as temporal scales.

    The topics to be addressed in this session include (but are not limited to):

    • homogenization-based methods, e.g. mathematical homogenization, computational homogenization etc.
    • atomistic-to-continuum coupling methods (e.g. the quasi-continuum method)
    • dislocation Dynamics based methods (e.g. DD-FEM coupling) 
    • embedded domain methods, domain decomposition methods, global-local techniques
    • heterogeneous multi-scale method (HMM), equation-free method
    • coarse graining methods
    • atomic time scale extension techniques
    • methods for phenomena with (partially) non-separating scales, e.g. localization, damage and fracture or transient phenomena
    • methods for coupled multi-field phenomena (e.g. thermo-chemo-electro-mechanical etc.)
    • model reduction techniques and reduction of computational costs associated with multiscale algorithms

     

    More information : http://www.emmc17.org/symposium-s16.html

    Deadline for the abstract submission is on December 3rd, 2019. December 16th,2019.


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  • Description of the Symposium by the organizers:

    "Dear GDRi network,

    the 17th European Mechanics of Materials conference will be held from 27th to 29th of May 2020 in Madrid, Spain. The conference covers several different aspects of mechanics – including experimental methods to understand the mechanical behavior of various materials across all length scales. Part of the conference will be a symposium on “Experimental Nanomechanics” organized by Frédéric Mompiou (CEMES Toulouse, France) and Christoph Kirchlechner (MPIE Düsseldorf, Germany).

    The symposium focuses on nano- and micromechanical testing coupled with advanced in situ techniques. Characterization techniques envisioned comprise (but are not limited to) transmission electron microscopy (TEM), scanning electron microscopy (SEM) and synchrotron-based techniques. The contributions should aim for understanding plasticity, fracture and fatigue at

    • grain and phase boundaries
    • amorphous / crystalline interfaces
    • free surfaces
    • multilayered systems
    • super lattices

     

    More information can be found at http://www.emmc17.org/symposium-s13.html .

    Please note the deadline for abstract submission is on 3rd  of December. December 16th, 2019.

    Best regards

    Frédéric Mompiou and Christoph Kirchlechner"


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  • The Institut Pprime is looking for two master student (last year) for internship on nanotwinned gold thin films.

    First internship:

    Subject: Atomic scale simulations of nanotwinned gold thin films.

    Aim: The aim of this internship is to establish via atomistic scale simulations the elastic strain field associated with different nanotwinned thin film microstructures. Equilibrium conditions will be determined using semi-empirical potentials, that are reliable for gold. In a first step, a simple configuration with a unique twin and periodic boundary conditions will be worked out. This will allow studying the impact of the twins’ density and thickness.More sophisticated and larger systems will then be considered, with several twins having different orientations.

    Dates: the internship is available from February to September 2020, with a vacation period in August.

    Required skills: Applicant has to be in final year of Master and/or engineering school with a background in solid-state physics or materials science. A strong interest in computer simulations.

    More information on the subject, and application can be found in the following document:

    « stage_M2_Brochard-Durinck_PtyMet_2019_en.pdf »

    Second internship:

    Subject: Preparation and characterization of homogeneous nanotwinned gold thin films

    Aim: Various optimizations of the sputtering conditions are envisaged: deposition temperature, substrate, acceleration voltage, etc. The student will work with several techniques:

    • Physical vapor deposition (sputtering) of the thin films.
    • Transmission electron microscopy (TEM) (i) bright field images with large field of view of the sample, (ii) dark field images to select one chosen twin family, (iii) in high-resolution mode to show the roughness of the twin boundaries.
    • X-Ray diffraction to determine with pole figures the twinned volume on a representative (millimetric) scale.
    • Focused ion beam to prepare thin foils for TEM and to observe the film surfaces in scanning electron microscopy.

    Dates: The internship is available from February to September 2020, with a vacation period in August.

    Required skills: Applicant has to be in final year of Master and/or engineering school with a background in solid-state physics or materials science. A strong interest in computer simulations.

    More information on the subject, and application can be found in the following document:

    « stage_M2_Michel_Renault_PtyMet_2019_en.pdf »


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