Evaluating the irradiation effects on the elastic properties of miniature monolithic SiC tubular specimens
Abstract
The initial results of a post-irradiation examination study conducted on CVD SiC tubular specimens irradiated under a high radial heat flux are presented herein. The elastic moduli were found to decrease more than that estimated based on previous studies. The significant decreases in modulus are attributed to the cracks present in the specimens. The stresses in the specimens, calculated through finite element analyses, were found to be greater than the expected strength of irradiated specimens, indicating that the irradiation-induced stresses caused these cracks. In conclusion, the optical microscopy images and predicted stress distributions indicate that the cracks initiated at the inner surface and propagated outward.
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Nuclear Energy (NE); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1460235
- Alternate Identifier(s):
- OSTI ID: 1549504
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Nuclear Materials
- Additional Journal Information:
- Journal Volume: 499; Journal Issue: C; Journal ID: ISSN 0022-3115
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; Silicon carbide; Accident tolerant fuel; Cladding; LWR; Nondestructive testing; SiC; Nuclear
Citation Formats
Singh, Gyanender P., Koyanagi, Takaaki, Petrie, Christian M., Terrani, Kurt A., and Katoh, Yutai. Evaluating the irradiation effects on the elastic properties of miniature monolithic SiC tubular specimens. United States: N. p., 2017.
Web. doi:10.1016/j.jnucmat.2017.10.060.
Singh, Gyanender P., Koyanagi, Takaaki, Petrie, Christian M., Terrani, Kurt A., & Katoh, Yutai. Evaluating the irradiation effects on the elastic properties of miniature monolithic SiC tubular specimens. United States. https://doi.org/10.1016/j.jnucmat.2017.10.060
Singh, Gyanender P., Koyanagi, Takaaki, Petrie, Christian M., Terrani, Kurt A., and Katoh, Yutai. Tue .
"Evaluating the irradiation effects on the elastic properties of miniature monolithic SiC tubular specimens". United States. https://doi.org/10.1016/j.jnucmat.2017.10.060. https://www.osti.gov/servlets/purl/1460235.
@article{osti_1460235,
title = {Evaluating the irradiation effects on the elastic properties of miniature monolithic SiC tubular specimens},
author = {Singh, Gyanender P. and Koyanagi, Takaaki and Petrie, Christian M. and Terrani, Kurt A. and Katoh, Yutai},
abstractNote = {The initial results of a post-irradiation examination study conducted on CVD SiC tubular specimens irradiated under a high radial heat flux are presented herein. The elastic moduli were found to decrease more than that estimated based on previous studies. The significant decreases in modulus are attributed to the cracks present in the specimens. The stresses in the specimens, calculated through finite element analyses, were found to be greater than the expected strength of irradiated specimens, indicating that the irradiation-induced stresses caused these cracks. In conclusion, the optical microscopy images and predicted stress distributions indicate that the cracks initiated at the inner surface and propagated outward.},
doi = {10.1016/j.jnucmat.2017.10.060},
journal = {Journal of Nuclear Materials},
number = C,
volume = 499,
place = {United States},
year = {Tue Oct 31 00:00:00 EDT 2017},
month = {Tue Oct 31 00:00:00 EDT 2017}
}
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Works referencing / citing this record:
Temperature vs. impedance dependencies of neutron-irradiated nanocrystalline silicon carbide (3C-SiC)
journal, December 2018
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