Lectures and Events - Department of Materials and Interfaces

Upcoming Lectures

  • November20

    11:00 AM

    Gerhard M.J. Schmidt Lecture Hall

    Application of Electron Crystallography Methods in Metallurgy

    Prof. Louisa Meshi

    Due to the direct correlation among the physical properties and crystal structure of materials, study of the latter is...

    Due to the direct correlation among the physical properties and crystal structure of materials, study of the latter is crucial for fundamental understanding of the properties. In the era of nano-science, objects of interest are getting smaller and traditional single-crystal and powder X-ray diffraction methods cannot be applied for characterization of their atomic structures due to the unavailability of single crystals and/or small quantity and size of these crystals in the multiphase specimens. Thus, electron crystallography (EC) (which is defined as a combination of electron diffraction and imaging methods) is sometimes the only viable tool for the analysis of their structure. In the previous century, electron diffraction (ED) was considered to be unsuitable for structure determination due to the problems of data quality arising from dynamical effects. At the last decades, researchers have shown that influence of dynamical effects can be substantially reduced if beam precession (PED) is used and/or data collection is performed in the off-axis conditions - enabling solution of atomic structures with various complexity (from inorganics to proteins). Our group focuses on development and application of EC methods for structure solution of nano-sized precipitates and characterization of structural defects in steels and light alloys. This study is technologically essential since precipitates and defects dictate physical properties of these structural materials. It must be noted that, atomic structures of intermetallics were not solved previously using solely ED methods. Reason for that is in the nature of intermetallic compound's structures. Contrarily to other complex materials, the atomic distances and angles of intermetallics are not fixed and coordination polyhedra are usually unknown. Thus, structure solution of these compounds is harder to validate. In the present seminar, contribution of our group in the development of routine structure solution path for aluminides (as an example of intermetallics) will be presented. In addition, characterization of structural defects, influencing the performance of the studied materials, will be shown.

  • November28

    09:30 AM

    Gerhard M.J. Schmidt Lecture Hall

    The Helen and Martin Kimmel Institute for Magnetic Resonance

    Preclinical Imaging using Electron Paramagnetic Resonance

    Prof. Boris Epel

    Electron Paramagnetic Resonance (EPR) Imaging is a well-established method for the study of spatial distribution and...

    Electron Paramagnetic Resonance (EPR) Imaging is a well-established method for the study of spatial distribution and local environment of electron paramagnetic centers and spin probes. One of the most important applications of modern EPR imaging is in vivo oximetry in which soluble spin probes with oxygen-dependent relaxation rates are used. Partial oxygen pressure (pO2) levels in tumors are major determinants of the response to cancer therapy. I will present the results of the in vivo oxygen guided radiation targeting study. This study combines pO2 images and conformal radiation delivery using 3D-printed blocks to achieve high precision treatment of tumor hypoxic areas. The study demonstrates that the dose to well-oxygenated tumor volumes in fibrosarcoma tumors in mice can be considerably reduced without compromising the outcome.

  • December11

    11:00 AM

    Perlman Chemical Sciences Building

    Room 404

    TBA

    Prof. Meital Reches

  • December15

    19:00 PM

    Gerhard M.J. Schmidt Lecture Hall

    Special Seminar

    “Yad Vashem” More than just a name

    Rachel Karni

    Archival documents from the Ukraine have only recently become available in Israel. These amazing documents (from the...

    Archival documents from the Ukraine have only recently become available in Israel. These amazing documents (from the years 1880-1936) have enabled the preparation of pages of testimony for Yad Vashem – pages which serve as the sole memory for Jews who perished in the Holocaust. Rachel Karni has spent much time over the last three years researching the town that her mother came from. From the information gathered, she has been able to compile pages of testimony for people about whom almost nothing, except their names and the fact that they had been murdered, had been known previously. Rachel will speak about the results of her very interesting detective work. The methodology she employed can be replicated for other places. Originally from New Jersey, USA, Rachel lives in Merkaz Shapira and was, for many years, the head of the English Department at the Shafir Religious High School.

Upcoming Events

  • April05

    08:00 AM

    David Lopatie Conference Centre

    Kimmel Auditorium

    A Random Walk in Soft Matter- in honor of Jacob Klein