Evaluation of fracture stress for the SiC layer of TRISO-coated fuel particles using a modified crush test method

Thak Sang Byun; John D. Hunn; James H. Miller; Lance L. Snead; Jin Weon Kim

doi:10.1111/j.1744-7402.2009.02462.x

Evaluation of fracture stress for the SiC layer of TRISO-coated fuel particles using a modified crush test method

Thak Sang Byun, John D. Hunn, James H. Miller, Lance L. Snead, Jin Weon Kim

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

Fracture stress data for the chemical vapor deposition SiC coatings of tri-isotropic carbon/silicon carbide-coated fuel particles were obtained using a newly developed testing and evaluation method, and their relationship with microstructure was investigated. A crush testing technique using a blanket foil at load-transferring contact has been developed for hemispherical shell SiC specimens based on finite element analysis results. The mean fracture stress varied with test material in the range of 330-650 MPa, and was linked to the combined characteristics of inner surface roughness and porosity.

Original language	English
Pages (from-to)	327-337
Number of pages	11
Journal	International Journal of Applied Ceramic Technology
Volume	7
Issue number	3
DOIs	https://doi.org/10.1111/j.1744-7402.2009.02462.x
State	Published - May 2010

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10.1111/j.1744-7402.2009.02462.x

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abstract = "Fracture stress data for the chemical vapor deposition SiC coatings of tri-isotropic carbon/silicon carbide-coated fuel particles were obtained using a newly developed testing and evaluation method, and their relationship with microstructure was investigated. A crush testing technique using a blanket foil at load-transferring contact has been developed for hemispherical shell SiC specimens based on finite element analysis results. The mean fracture stress varied with test material in the range of 330-650 MPa, and was linked to the combined characteristics of inner surface roughness and porosity.",

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AU - Miller, James H.

AU - Snead, Lance L.

AU - Kim, Jin Weon

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AB - Fracture stress data for the chemical vapor deposition SiC coatings of tri-isotropic carbon/silicon carbide-coated fuel particles were obtained using a newly developed testing and evaluation method, and their relationship with microstructure was investigated. A crush testing technique using a blanket foil at load-transferring contact has been developed for hemispherical shell SiC specimens based on finite element analysis results. The mean fracture stress varied with test material in the range of 330-650 MPa, and was linked to the combined characteristics of inner surface roughness and porosity.

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Evaluation of fracture stress for the SiC layer of TRISO-coated fuel particles using a modified crush test method

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