BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Events//NONSGML v1.0//EN
METHOD:PUBLISH
BEGIN:VEVENT
DTSTART;TZID="Pacific Time (US & Canada)":20260730T100000
DTEND;TZID="Pacific Time (US & Canada)":20260730T110000
SUMMARY:Chemistry Dissertation Defense – Matthew Heaney
LOCATION:Online
DESCRIPTION:Speaker: Matthew Heaney\n\nGroup: Dr. Xiaofeng Guo\n\nTitle: Local Structures of Uranium of Relevance to the Current and Future Nuclear Fuel Cycle\n\nAbstract:\n\nThe nuclear fuel cycle is a complex system that has great variability in the chemistry, materials science, and physics throughout its entirety. Its long term sustainability, safety, and optimization depend on a fundamental understanding of the materials and chemistry involved. While macroscopic models traditionally rely on the average long range crystallographic order to predict material behavior, the critical thermodynamic, chemical, and phase transitions governing uranium systems are fundamentally driven by the local structural environment. This dissertation investigates the local coordination, short range disorder, and surface behaviors of uranium across three distinct stages of the nuclear fuel cycle – the front end extraction of uranium, mid-stream fuel properties when partially oxidized, and environmental remediation on the back end, by leveraging advance X-ray and neutron characterization techniques. Together these studies demonstrate that local structural insights are essential for engineering macroscopic solutions across the nuclear fuel cycle.
BEGIN:VALARM
ACTION:DISPLAY
DESCRIPTION:REMINDER
TRIGGER;RELATED=START:-PT00H15M00S
END:VALARM
END:VEVENT
END:VCALENDAR