Atomistic Studies of Deformation and Fracture in Materials with Mixed Metallic and Covalent Bonding
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Materials with high melting temperatures (over 2000°C) tend to be brittle at ambient and even relatively high temperatures. High melting temperatures originate in strong interatomic bonding arising from formation of dd or dp bonds that also affect and/or control crystal structures and properties of extended defects, such as dislocations, grain boundaries. These, in turn, govern plastic deformation and fracture. General goal: Establish relationship between electronic structure and mechanical behavior
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2007-03-09
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Poster presented at The Search for a Sustainable Energy Future: Challenges for Basic Research, A Mini-Symposium sponsored by the Energy Working Group at Penn, March 9, 2007.