Gaseous fission product release predictions in TRISO HTGR fuel particles

Journal Article · Mon Mar 01 04:00:00 EST 1982 · J. Am. Ceram. Soc.; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1982.tb10385.x· OSTI ID:6672862

Kovacs, W J

Structural integrity of SiC layers on TRISO-coated HTGR fuel particles is a critical property necessary to ensure fission-product retention. Characterization and detection of microcracks in SiC layers by high-pressure (69 MPa) mercury intrusion is discussed. Particular emphasis is placed on relating metallic and gaseous fission-product release to the level of defective SiC layers. Gaseous fission-product release during irradiation is shown to be more accurately predicted when the fraction of defective SiC layers as determined by mercury intrusion is taken into account. 11 refs.

• Research Organization: Gen At Co, San Diego, CA, USA
• OSTI ID: 6672862
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 65:3; ISSN JACTA
• Country of Publication: United States
• Language: English

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