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DOE OSTI · 2574273

Graphite Oxidation Rate Study on ET-10 and ETU-10 Grades - Task 4: QA Support and Testing for Structural Graphite Oxidation

Smith, Rebecca [Idaho National Laboratory (INL), Idaho Falls, ID (United States)]·Ames, Mary Kaye [Idaho National Laboratory (INL), Idaho Falls, ID (United States)]·Windes, William E. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000188030885)
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Abstract

INL performed targeted oxidation tests to measure oxidation rates for samples of ET-10 and ETU-10 graphite under CRADA No. 21CRA22 Mod. 3, Annex A, “Tritium Testing to Support Kairos Power Advanced Reactor Demonstration” (04/02/2024). All testing was conducted within INL’s Carbon Characterization Laboratory (CCL) using test standard ASTM D7542-21 "Standard Test Method for Air Oxidation of Carbon and Graphite in the Kinetic Regime" [ASTM International, 2021]. Kairos Power provided all test specimens through its graphite vendor Ibiden, Inc. to INL and ASTM specimen specified dimensions. Information within this report only provides the Arrhenius oxidation rate plots as a function of temperature for each graphite grade tested. The raw mass loss per time data will be provided on the Nuclear Data Management and Analysis System (NDMAS) portal located on the INL information system.

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36 MATERIALS SCIENCEGraphiteOxidationStructural Materials

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Smith, Rebecca [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Ames, Mary Kaye [Idaho National Laboratory (INL), Idaho Falls, ID (United States)], Windes, William E. [Idaho National Laboratory (INL), Idaho Falls, ID (United States)] (ORCID:0000000188030885). 2025-07-31. Graphite Oxidation Rate Study on ET-10 and ETU-10 Grades - Task 4: QA Support and Testing for Structural Graphite Oxidation. https://doi.org/10.2172/2574273

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