NSUF 25-5486: Ceramic Matrix Composite Post Irradiation Examination

High-temperature, post-irradiated properties will be measured for two-dimensional Ceramic Matrix Composite (CMC) samples at the Low Activation Materials Development and Analysis (LAMDA) Facility at Oak Ridge National Laboratory (ORNL). Flexural strength will be measured using a bend test informed by ASTM C1341, coefficient of thermal expansion will be measured via dilatometry using methodology informed by ASTM E228, thermal diffusivity will be measured using laser flash analysis informed by ASTM E1461, and specific heat will be measured using differential scanning calorimetry informed by ASTM E1269. As a first of a kind experiment on this particular material, the rapid-turnaround screening irradiation experiments described in this proposal will provide a cost-effective preliminary verification of CMC material feasibility for microreactor design (including the eVinci microreactor), thus providing confidence in future investment for multi-million-dollar material qualification campaigns. If preliminary results from this screening irradiation testing are promising, then planning for a larger irradiation campaign can proceed, with the output from that larger campaign supporting qualification and licensing of CMC materials in the eVinci microreactor.

Additional Info

Field	Value
Awarded Institution	Westinghouse Electric Company
DOI	10.46936/NSUF/60015713
Embargo End Date	2028-01-22
Facility Tech Lead	Kory Linton
NSUF Call	FY 2025 Super RTE Call
PI	Keith Means
PIE Facilities	Low Activation Materials Design and Analysis Laboratory
Prep Facilities	Low Activation Materials Design and Analysis Laboratory
Project Member	Mr. Keith Means, Principal Engineer - Westinghouse Electric Company (https://orcid.org/0009-0008-9254-3403)
Project Type	RTE