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There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
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The reason it's a surprise? Most known materials expand upon x-ray irradiation. Yet cadmium cyanide contracts, new research shows. The researchers behind the work say the phenomenon, called negative x-ray expansion, could lead to radiation being used as a design tool for functional inorganic materials. Angus Wilkinson, Professor and Associate Chair for Operations and Undergraduate Programs in the School of Chemistry and Biochemistry, wasn't part of the research team, but is an expert on negative thermal expansion materials, and his thoughts on this development are included. Wilkinson also has a joint appointment with the School of Materials Science and Engineering.
