Structure/Property Relations, MST-8
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The science of defects teamTeam Leader: Kurt Sickafus The team has three thrust areas: fundamental studies of radiation effects, optical materials studies, and support for the Global Nuclear Energy Partnership (GNEP). The common themes to these activities are the crystallography and microstructure of materials particularly as they relate to radiation damage. In this context, team capabilities include the synthesis and fabrication of complex oxide ceramics, ion beam irradiation, quantification of irradiation effects in metals and alloys and characterization using a suite of tools including, but not limited to, TEM, x-ray diffraction, and ion-beam analysis. The first major element is to develop an understanding of the radiation damage response of materials, to predict microstructural evolution in materials exposed to radiation, and to identify the physical aspects of materials that are effective in promoting radiation resistance. Particle irradiation experiments are complemented by atomistic computer simulations. Recently, the team has combined density functional theory, molecular dynamics, and temperature-accelerated dynamics to demonstrate how irradiation-induced defects evolve over long timescales. Other recent efforts include:
(Science of Defects team pose with atom models.) Team Members Team Leader: Kurt Sickafus
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