Par GDRi Mecano le 20 July 2020 à 11:57
Symposium CT03 - Imaging Materials with X-Rays—Recent Advances with Synchrotron and Laboratory Sources
Abstract submission open from September 24th to October 29th.
The last decade has seen a tremendous evolution of x-ray imaging and microscopy. This has been driven by the rapid development of third and fourth generation x-ray facilities, as well as new laboratory sources and x-ray optics capable of producing beams routinely below 50 nm in size. The high penetrating power, extreme sensitivity of x-rays to strain and defects and the tunability of these new sources to access x-ray fluorescence of much of the periodic table has enabled in situ or operando studies of nano-scale properties materials. It is worth also emphasizing that small x-ray beams may also be used to induce an electrical current or light emission in the nano-object enabling enhanced scanning probe and photo excitation studies.Beyond a discussion of the methods which have been developed, and are still an object of active research (coherent diffraction imaging in forward or Bragg or full field imaging conditions, nano x-ray fluorescence imaging, micro-Laue diffraction …), this symposium aims to review the materials science issues that these new tools can help solving. The range of materials science topics and related applications is indeed very large: electronic and optoelectronic devices (including flexible devices), transport properties, photovoltaic applications, catalysis, energy harvesting and storage, and even structural materials.
In all these areas, being able to investigate local structure-function relationships at the nano-scale during operation is a fundamental issue. The techniques described above have begun to make a major impact on these fundamental materials science questions. Our invited speakers, as well as the growing community of x-ray facility users, will present a complete overview of the capabilities and science being engaged with x-ray imaging and microscopy. These capabilities are only going to grow with the new, high brightness, synchrotrons and tabletop facilities appearing and being planned worldwide.
Par GDRi Mecano le 30 March 2020 à 12:05
At the Max-Planck Institut für Eisenforschung in the Department Structure and Nano-/Micromechanics of Materials (Prof. G. Dehm) they offer a PhD student position in:
"Atomistic Computer Simulation of Grain Boundary Structure and Mechanics"
Understanding how grain boundaries influence plasticity will lead to significant advances in material design. In the context of the department’s research, the overarching aim of this PhD project is to connect grain boundary structures in fcc metals to physical properties.
Your tasks will be to employ molecular dynamics simulations combined with Monte Carlo techniques to predict grain boundary structures at an atomic level and to model their mechanical behavior. A part of the project will be focused on investigating the influence of alloying elements in order to work towards deriving grain boundary design principles for improved materials properties. All of the work is expected to be performed in collaboration with the experimental activities of the department.You have a Masters degree with good to excellent marks in Physics, Material Science, Mechanical Engineering, or a related field and you would like to work on challenging problems in Nano- and Micro-Mechanics and Materials Science. Some prior computer simulation or programming experience (especially with Python or C++) is advantageous.
The working language at our institute is English; sufficient proficiency in English to communicate effectively on scientific topics is required.
More information, and application system are available at the following address: https://recruitingapp-5424.de.umantis.com/Vacancies/320/Description/2
Par GDRi Mecano le 19 February 2020 à 10:19
Advanced Nanomechanical Testing
Focus Issue: Journal of Materials Research
Issue Date: March 28, 2021
Submission Deadline: August 14, 2020
Small-scale mechanical characterization is essential for ensuring the service performance and lifetime of small components, such as thin films and coatings, electronic sensors, and MEMS. The first mechanical measurements on the submicrometer scale were enabled by the development of nanoindentation in the 1980s. JMR has long been the flagship journal for this field. In addition to countless contributed articles, previous Focus Issues published over the past two decades have disseminated the latest in method developments and trends in the field.
In addition to providing a long-expected update, this Focus Issue will expand the scope of nanomechanical testing methods beyond classical nanoindentation. Recent years have seen numerous attempts to access specific materials parameters and to better account for the typical operational conditions of the sample of interest. We therefore welcome contributions related to, but not limited to, focused ion beam (FIB) enabled methods, complex loading conditions, in-situ testing, and testing in extreme environments. Application of nanomechanical testing methods to new types of materials are also encouraged. This Focus Issue is a unique opportunity to highlight and share recent significant developments and achievements with the greater nanomechanics community.
Contributing papers are solicited in the following areas:
• Nanoindentation, micromechanical, and nanomechanical testing
• New developments, e.g., for the acquisition of the full stress-strain response
• Application to new types of materials
• Complex loading conditions (cyclic fatigue, fracture testing)
• Extreme testing environments (high and low temperatures, irradiation, high strain rates)
• In-situ testing (in scanning electron microscope, transmission electron microscope, or synchrotron)
Guest editors :
Benoit Merle, University Erlangen-Nuremberg (FAU), Germany
Verena Maier-Kiener, Montanuniversitaet Leoben, Austria
Timothy J. Rupert, University of California, Irvine, USA
George M. Pharr, Texas A&M University, USA
To be considered for this issue, new and previously unpublished results or review articles significant to the development of this field should be presented. The manuscripts must be submitted via the JMR electronic submission system by August 14, 2020. Manuscripts submitted after this deadline will not be considered for the issue due to time constraints on the review process. Please select “Advanced Nanomechanical Testing” as the Focus Issue designation. Note our manuscript submission minimum length of 3250 words, excluding figures, captions, and references, with at least 6 and no more than 10 figures and tables combined. Review articles may be longer but must be pre-approved by proposal to the Guest Editors via email@example.com. The proposal form and author instructions may be found at www.mrs.org/jmr-instructions. All manuscripts will be reviewed in a normal but expedited fashion. Papers submitted by the deadline and subsequently accepted will be published in the Focus Issue. Other manuscripts that are acceptable but cannot be included in the issue will be scheduled for publication in a subsequent issue.
Please direct questions to firstname.lastname@example.org.
Par GDRi Mecano le 24 January 2020 à 15:48
AFC 2020, ce seront 16 sessions autour des groupes thématiques – biologie, chimie, physique – et des axes transverses – croissance cristalline, enseignement et médiation, grands instruments – de l’AFC ainsi que les sciences de la Terre et toutes les interfaces entre ces disciplines.
Trois conférences plénières, des ateliers, des sessions posters, des plages de rencontres avec les exposants, une conférence grand public, quelques surprises ainsi qu’un dîner de gala sur les hauteurs du fort de la Bastille sont également prévus.
Ce congrès de l’AFC sera aussi l’occasion de la remise du premier prix «André Guinier», des prix de thèse et de la tenue de l’assemblée générale.
Plus d'informations disponibles à l'adresse suivante: https://afc2020.afc.asso.fr/
Par GDRi Mecano le 26 December 2019 à 16:58
The yearly conférence "Plasticité" (mainly French community) will take place in Toulouse, from March 30th to April 1st. Submission are already opened:
(Account at sciencesconf.org needed)
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