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Topic
MAS webinar: "TKD 101: An Introduction to Transmission Kikuchi Diffraction"
Description
Over the last two to three decades, electron backscatter diffraction (EBSD) emerged as one of the most powerful and exciting methods in electron microscopy to quantify the crystallographic microstructures of materials. Over the last decade or so, transmission Kikuchi diffraction (TKD) has emerged as a vital and important complement to EBSD. In TKD, a thin specimen (as might be used for transmission electron microscopy) is mounted into the scanning electron microscope (SEM) and held very near (<10 mm) the objective lens. Electron Kikuchi diffraction patterns are then acquired using the EBSD hardware, but in transmission mode and from the electron exit surface of the foil, as opposed to reflection mode from the entrance surface as in EBSD. This provides improved spatial resolution, often 10 nm or finer, compared to several hundred nm or coarser in conventional EBSD. This opens unprecedented capabilities for materials analysis.
This seminar will (1) briefly discuss the basics of TKD and put them into their historical perspective compared to EBSD; (2) discuss how to acquire TKD data, with emphasis on artifacts, errors, and things to watch out for; and (3) show a few examples of practical materials problem solving using TKD.
This webinar will be presented by Dr. Chad Parish, a Research and Development Staff Member in the Radiation Effects and Microstructural Analysis Group, Materials Science and Technology Division, Oak Ridge National Laboratory.
Time
Nov 20, 2020 01:00 PM in
Eastern Time (US and Canada)
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Hi there, You are invited to a Zoom webinar. When: Nov 20, 2020 01:00 PM Eastern Time (US and Canada) Topic: MAS webinar: "TKD 101: An Introduction to Transmission Kikuchi Diffraction" Register in advance for this webinar: https://umn.zoom.us/webinar/register/WN__vfPG3FBQAOzcYuIVfso2g Or an H.323/SIP room system: H.323: 162.255.37.11 (US West) 162.255.36.11 (US East) 221.122.88.195 (China) 115.114.131.7 (India Mumbai) 115.114.115.7 (India Hyderabad) 213.19.144.110 (Amsterdam Netherlands) 213.244.140.110 (Germany) 103.122.166.55 (Australia Sydney) 103.122.167.55 (Australia Melbourne) 209.9.211.110 (Hong Kong SAR) 149.137.40.110 (Singapore) 64.211.144.160 (Brazil) 69.174.57.160 (Canada Toronto) 65.39.152.160 (Canada Vancouver) 207.226.132.110 (Japan Tokyo) 149.137.24.110 (Japan Osaka) Meeting ID: 960 4857 9914 SIP: 96048579914@zoomcrc.com After registering, you will receive a confirmation email containing information about joining the webinar. ---------- Webinar Speakers Chad Parish (Research and Development Staff Member in the Radiation Effects and Microstructural Analysis Group @Oak Ridge National Laboratory) Dr. Chad Parish is a Research and Development Staff Member in the Radiation Effects and Microstructural Analysis Group, Materials Science and Technology Division, Oak Ridge National Laboratory. His research involves electron microscopy to solve problems in materials for nuclear energy systems. Chad has been an MAS member since 2004 and the Secretary of MAS since 2018.
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