Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 448, Issue 1-3, Pages 497-511Publisher
ELSEVIER
DOI: 10.1016/j.jnucmat.2013.10.002
Keywords
-
Funding
- Office of Fusion Energy Sciences, US Department of Energy [DE-AC05-00OR22725]
- UT-Battelle, LLC
- US-japan TITAN Collaboration on Fusion Blanket Technology and Materials
- ORNL's Shared Research Equipment (ShaRE) User Facility
- High Flux Isotope Reactor
- Office of Basic Energy Sciences, U.S. Department of Energy
- UT-Battelle LLC [DE-AC05-00OR22725]
- US Department of Energy
Ask authors/readers for more resources
Silicon carbide (SiC) for nuclear structural applications, whether in the monolithic ceramic or composite form, will require a robust joining technology capable of withstanding the harsh nuclear environment. This paper presents significant progress made towards identifying and processing irradiation-tolerant joining methods for nuclear-grade SiC. In doing so, a standardized methodology for carrying out joint testing has been established consistent with the small volume samples mandated by neutron irradiation testing. Candidate joining technologies were limited to those that provide low induced radioactivity and included titanium diffusion bonding, Ti-Si-C MAX-phase joining, calcia-alumina glass-ceramic joining, and transient eutectic-phase SiC joining. Samples of these joints were irradiated in the Oak Ridge National Laboratory High Flux Isotope Reactor at 500 or 800 degrees C, and their microstructure and mechanical properties were compared to pre-irradiation conditions. Within the limitations of statistics, all joining methodologies presented retained their joint mechanical strength to similar to 3 dpa at 500 degrees C, thus indicating the first results obtained on irradiation-stable SiC joints. Under the more aggressive irradiation conditions (800 degrees C, 5 dpa), some joint materials exhibited significant irradiation-induced microstructural evolution; however, the effect of irradiation on joint strength appeared rather limited. (C) 2013 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available