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Title: Progress in development of SiC-based joints resistant to neutron irradiation

Abstract

This study fills a knowledge gap regarding neutron-irradiation resistance of SiC joints for nuclear applications, by investigating high-dose neutron irradiation effects on the strength of selected joints and low-dose neutron irradiation effects on recently developed joints fabricated by state of the art processing methods. The joining methods used for the high-dose radiation study included pressure-assisted liquid-phase sintering (LPS) of SiC nanopowder, pressureless calcia-alumina glass ceramics joining, and reaction sintering of Ti-Si-C powders with hot-pressing. The joints were neutron-irradiated at 530 °C to 20 displacements per atom (dpa). Other joining methods included low-pressure LPS of cold-pressed SiC green body, pressureless reaction sintered Ti-Si-C powder joint, spark plasma–sintered Ti diffusion bond, and hot-pressed Ti diffusion bond, which were irradiated at ~500 °C to ~2 dpa. There was no notable degradation of torsional strengths of the joints following the high-dose irradiation. The irradiation-induced degradation at low neutron dose was highly dependent on joint type.

Authors:
ORCiD logo [1]; ORCiD logo [1];  [2];  [3];  [4]; ORCiD logo [5]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Kyoto Univ. (Japan)
  3. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
  4. Politecnico di Torino (Italy)
  5. Southwest Jiaotong Univ. (China)
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)
OSTI Identifier:
1606981
Alternate Identifier(s):
OSTI ID: 1778446
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of the European Ceramic Society
Additional Journal Information:
Journal Volume: 40; Journal Issue: 4; Journal ID: ISSN 0955-2219
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Silicon carbide; Joining; Neutron irradiation

Citation Formats

Koyanagi, Takaaki, Kato, Yutai, Hinoki, Tatsuya, Henager, C., Ferraris, Monica, and Grasso, Salvatore. Progress in development of SiC-based joints resistant to neutron irradiation. United States: N. p., 2019. Web. doi:10.1016/j.jeurceramsoc.2019.10.055.
Koyanagi, Takaaki, Kato, Yutai, Hinoki, Tatsuya, Henager, C., Ferraris, Monica, & Grasso, Salvatore. Progress in development of SiC-based joints resistant to neutron irradiation. United States. https://doi.org/10.1016/j.jeurceramsoc.2019.10.055
Koyanagi, Takaaki, Kato, Yutai, Hinoki, Tatsuya, Henager, C., Ferraris, Monica, and Grasso, Salvatore. 2019. "Progress in development of SiC-based joints resistant to neutron irradiation". United States. https://doi.org/10.1016/j.jeurceramsoc.2019.10.055. https://www.osti.gov/servlets/purl/1606981.
@article{osti_1606981,
title = {Progress in development of SiC-based joints resistant to neutron irradiation},
author = {Koyanagi, Takaaki and Kato, Yutai and Hinoki, Tatsuya and Henager, C. and Ferraris, Monica and Grasso, Salvatore},
abstractNote = {This study fills a knowledge gap regarding neutron-irradiation resistance of SiC joints for nuclear applications, by investigating high-dose neutron irradiation effects on the strength of selected joints and low-dose neutron irradiation effects on recently developed joints fabricated by state of the art processing methods. The joining methods used for the high-dose radiation study included pressure-assisted liquid-phase sintering (LPS) of SiC nanopowder, pressureless calcia-alumina glass ceramics joining, and reaction sintering of Ti-Si-C powders with hot-pressing. The joints were neutron-irradiated at 530 °C to 20 displacements per atom (dpa). Other joining methods included low-pressure LPS of cold-pressed SiC green body, pressureless reaction sintered Ti-Si-C powder joint, spark plasma–sintered Ti diffusion bond, and hot-pressed Ti diffusion bond, which were irradiated at ~500 °C to ~2 dpa. There was no notable degradation of torsional strengths of the joints following the high-dose irradiation. The irradiation-induced degradation at low neutron dose was highly dependent on joint type.},
doi = {10.1016/j.jeurceramsoc.2019.10.055},
url = {https://www.osti.gov/biblio/1606981}, journal = {Journal of the European Ceramic Society},
issn = {0955-2219},
number = 4,
volume = 40,
place = {United States},
year = {2019},
month = {11}
}

Journal Article:

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