SEM Milestone Report for MARMOT Validation Project

Fay, Jake Thornton [Idaho National Laboratory]; Yao, Tiankai [Idaho National Laboratory] (ORCID:0000000183307638); Trowbridge, Tammy L [Idaho National Laboratory] (ORCID:000000023852901X); Montrose, Alina Catherine [Idaho National Laboratory]

DOE OSTI · 3173553

SEM Milestone Report for MARMOT Validation Project

Fay, Jake Thornton [Idaho National Laboratory]·Yao, Tiankai [Idaho National Laboratory] (ORCID:0000000183307638)·Trowbridge, Tammy L [Idaho National Laboratory] (ORCID:000000023852901X)·Montrose, Alina Catherine [Idaho National Laboratory]

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Abstract

MARMOT is a meso-scale fuel code under development by NEAMS designed to predict the microstructure evolution of fuel materials to determine updated thermal and mechanical property models. These updated models can be used by engineering scale codes such as BISON. To support its development and validation the MARMOT Validation Project (MVP) was initiated and consists of extensive microstructure and thermal characterization of U-10Zr fuel material before and at discreet levels of irradiation. This report summarizes the SEM and EDS characterization of the lowest burnup samples (1.5% FIMA) and how they compare to pre-irradiation SEM and EDS.

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Fay, Jake Thornton [Idaho National Laboratory], Yao, Tiankai [Idaho National Laboratory] (ORCID:0000000183307638), Trowbridge, Tammy L [Idaho National Laboratory] (ORCID:000000023852901X), Montrose, Alina Catherine [Idaho National Laboratory]. 2025-06-30. SEM Milestone Report for MARMOT Validation Project. https://www.osti.gov/biblio/3173553

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