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SUMMARY:Arrangement and Hierarchy of Polyhedral Units in Tilt Grain Bounda
 ries - Dr Kazutoshi Inoue (Tohoku University)
DTSTART:20200825T092000Z
DTEND:20200825T094000Z
UID:TALK150511@talks.cam.ac.uk
CONTACT:Joseph Nelson
DESCRIPTION:Macroscopic properties of polycrystalline materials strongly d
 epend on defects in their crystalline structures. Especially\, properties 
 of grain boundaries (GBs) should result from nearby nano-scale space\, lea
 ding to the questions of what type of atomic polyhedra pack the GB region.
  We analyzed 3D atomic structures of symmetrical tilt GBs in face-centered
  cubic (fcc) crystals. It is concluded that the GB region can be packed by
  bulk or GB-type polyhedral units with minor variations. Moreover\, the GB
  hierarchy directly follow the distribution of rational numbers that is re
 presented by the modified Farey diagram [1].\n\nDr Inoue is affiliated wit
 h WPI-AIMR\, Tohoku University and JST-PRESTO\, Japan. This work was carri
 ed out in collaboration with Kazuaki Kawahara and Mitsuhiro Saito [School 
 of Engineering\, University of Tokyo]\, Motoko Kotani [WPI-AIMR]\, and Yui
 chi Ikuhara [WPI-AIMR\, University of Tokyo\, Japan Fine Ceramics Center].
 \n\n_References_:\n\n[1] Inoue\, K\; Kawahara\, K\; Saito\, M\; Kotani\, M
 \; Ikuhara\, Y: “3D arrangement of atomic polyhedra in tilt grain bounda
 ries”\, _under review_ (2020).\n\n\n*This talk will be held online using
  Zoom. Please "register your email address here":https://forms.gle/9Rpf2Be
 kocwLpmHD9 to receive Zoom links via email.*\n\n*Workshop website*: https:
 //www.mtg.msm.cam.ac.uk/events/msm-aimr-joint-online-workshop-2020
LOCATION:Online - Zoom
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