Events Calendar View
CSP Lunch Seminar
Oct 15, 2019
Guest: Nima Karimitari, Center for Simulational Physics, UGA
Tuesday, October 15, 2019 12:30 pm - 1:30 pm
Location: CSP Conference Room (322)
Oct 17, 2019
Guest: Prof. Sossina M. Haile
Thursday, October 17, 2019 2:30 pm - 3:30 pm
Location: Physics Reading RoomOur colloquium speaker, Prof. Sossina M. Haile is our guest today.Please see the flier for more information.I also wanted to mention that one of our visiting friends, Fabricio, is leaving tomorrow. Please join us to meet him before he leaves, if you get a chance.Our sponsor, today, is our friend, Garrett and he wants to surprise us with a homemade and healthy baked oatmeal.
Oct 17, 2019
Guest: Prof. Sossina M. Haile, Department of Materials Science and Engineering, Applied Physics Program and Department of Chemistry, Northwestern University, Evanston, IL
Thursday, October 17, 2019 3:30 pm - 4:30 pm
Location: Physics Auditorium (Rm. 202)
Ceria and its derivatives find use in a wide variety of technologies from traditional applications in solid oxide fuel cells, catalysis, and electrochemical sensors, to new applications in computing, medicine, and water splitting. The suitability of ceria for these many applications derives in part from the redox flexibility of the material, with the predominantly Ce4+ ion adopting the 3+ oxidation state under conditions amenable to external control. The very high oxygen ion transport in suitably doped ceria is a second critical factor driving its technological value. Here we present recent results highlighting transport and redox activity in (i) bulk, (ii) grain boundary, and (iii) surface regions of ceria, obtained using a range of techniques from bulk thermogravimetric measurements, to in situ X-ray absorption studies and electron holography. We report on the unusual behavior of ceria upon substitution of Ce with the nominally isovalent species Zr. Contrary to what might be expected, Zr4+ has a dramatic impact on oxygen vacancy formation, in both the bulk and surface regions of the oxide. We further report on the dramatic role of trace impurities on transport across the grain boundaries of polycrystalline, rare-earth doped ceria. The insight garnered suggest new approaches to controlling material behavior for optimal technological characteristics.
May 18, 2020
Monday, May 18, 2020 9:00 am - Wednesday, May 20 5:00 pm
Location: University of Georgia, Athens, Georgia
This will be a small workshop where scientists who are interested in Galactic and extragalactic High Velocity Clouds (HVCs) will gather for lively discussions of the latest observations, computational models and theoretical explanations.
See more at the workshop web site: https://www.physast.uga.edu/workshops/high-velocity-clouds
Page 97 of 97, showing 4 records out of 580 total, starting on record 577, ending on 580