Response of isotopically tailored titanium diboride to neutron irradiation
Abstract
The response of polycrystalline TiB2 to neutron irradiation was investigated. The material was fabricated using isotopically enriched 11B powders to minimize helium production via the 10B(n, α)7Li reaction. Neutron irradiation was conducted at temperatures of ~200°C and ~600°C to a fast fluence of 2.4 × 1025 n/m2 (>0.1 MeV). The material exhibited some swelling, but less swelling at the higher irradiation temperature. No macroscopic damage was observed in the irradiated material, although moderate irradiation–induced micro–cracking was found in the irradiated TiB2. Furthermore, this study demonstrated improved radiation resistance of isotopically tailored TiB2 compared with natural boron TiB2, which exhibited macroscopic fracture by irradiation.
- Authors:
-
[1];
[1];
[1];
[3]
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- UES, Inc., Dayton, OH (United States)
- Missouri Univ. of Science and Technology, Rolla, MO (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)
- OSTI Identifier:
- 1479767
- Alternate Identifier(s):
- OSTI ID: 1469265
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of the American Ceramic Society
- Additional Journal Information:
- Journal Volume: 102; Journal Issue: 1; Journal ID: ISSN 0002-7820
- Publisher:
- American Ceramic Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Koyanagi, Takaaki, Katoh, Yutai, Ang, Caen K., King, Derek, Hilmas, Greg E., and Fahrenholtz, William G. Response of isotopically tailored titanium diboride to neutron irradiation. United States: N. p., 2018.
Web. doi:10.1111/jace.16036.
Koyanagi, Takaaki, Katoh, Yutai, Ang, Caen K., King, Derek, Hilmas, Greg E., & Fahrenholtz, William G. Response of isotopically tailored titanium diboride to neutron irradiation. United States. doi:https://doi.org/10.1111/jace.16036
Koyanagi, Takaaki, Katoh, Yutai, Ang, Caen K., King, Derek, Hilmas, Greg E., and Fahrenholtz, William G. Thu .
"Response of isotopically tailored titanium diboride to neutron irradiation". United States. doi:https://doi.org/10.1111/jace.16036. https://www.osti.gov/servlets/purl/1479767.
@article{osti_1479767,
title = {Response of isotopically tailored titanium diboride to neutron irradiation},
author = {Koyanagi, Takaaki and Katoh, Yutai and Ang, Caen K. and King, Derek and Hilmas, Greg E. and Fahrenholtz, William G.},
abstractNote = {The response of polycrystalline TiB2 to neutron irradiation was investigated. The material was fabricated using isotopically enriched 11B powders to minimize helium production via the 10B(n, α)7Li reaction. Neutron irradiation was conducted at temperatures of ~200°C and ~600°C to a fast fluence of 2.4 × 1025 n/m2 (>0.1 MeV). The material exhibited some swelling, but less swelling at the higher irradiation temperature. No macroscopic damage was observed in the irradiated material, although moderate irradiation–induced micro–cracking was found in the irradiated TiB2. Furthermore, this study demonstrated improved radiation resistance of isotopically tailored TiB2 compared with natural boron TiB2, which exhibited macroscopic fracture by irradiation.},
doi = {10.1111/jace.16036},
journal = {Journal of the American Ceramic Society},
number = 1,
volume = 102,
place = {United States},
year = {2018},
month = {8}
}
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