Thursday, April 8, 2010, 1:00 pm — Seminar Room, Bldg. 725
Three-Dimensional X-Ray Diffraction (3DXRD) microscopy is an emerging methodology for in situ studies of mm-sized polycrystals (metals, ceramics, rocks). In favorable cases, the position, volume, orientation, stress-state and dislocation densities of hundreds of grains can be determined simultaneously and sufficiently fast to enable in situ studies of e.g. phase transformations, coarsening and plastic deformation. 3D movies of the changes in grain boundary topology of samples with > 1000 grains have been obtained with a spatial resolution of 1 mu. In addition, the approach allows for structure solution and refinement of multigrains. Examples of work will be shown, with a bias towards basic studies in metallurgy, and the prospect of combined 3DXRD-tomography work highlighted.
Ideas for generalizing 3DXRD microscopy to the nano-scale will be presented. Focus will be on R&D in the so called nanodetector: a single photon counting imaging detector for 5-200 keV x-rays with specifications of 100 nm resolution, 1 mm^2 active area and a throughput of 10^9.
Hosted by: Chi-Chang Kao
6351 | INT/EXT | Events Calendar
Not all computers/devices will add this event to your calendar automatically.
A calendar event file named "calendar.ics" will be placed in your downloads location. Depending on how your device/computer is configured, you may have to locate this file and double click on it to add the event to your calendar.
Event dates, times, and locations are subject to change. Event details will not be updated automatically once you add this event to your own calendar. Check the Lab's Events Calendar to ensure that you have the latest event information.