M3FT-16OR020202112 - Report on viability of hydrothermal corrosion resistant SiC/SiC Joint development

Technical Report · Thu Jun 30 00:00:00 EDT 2016

DOI:https://doi.org/10.2172/1331090· OSTI ID:1331090

Katoh, Yutai ^[1]; Koyanagi, Takaaki ^[1]; Kiggans Jr, James O. ^[1]; Terrani, Kurt A. ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Hydrothermal corrosion of four types of the silicon carbide (SiC) to SiC plate joints were investigated under PWR and BWR relevant chemical conditions without irradiation. The joints were formed by metal diffusion bonding using molybdenum or titanium interlayer, reaction sintering using Ti-Si-C system, and SiC nanopowder sintering. Most of the formed joints withstood the corrosion tests for five weeks. The recession of the SiC substrates was limited. Based on the recession rate of the bonding layers, it was concluded that all the joints except for the molybdenum diffusion bond are promising under the reducing activity environments. The SiC nanopowder sintered joint was the most corrosion tolerant under the oxidizing activity environment among the four joints.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Flux Isotope Reactor (HFIR); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). High Temperature Materials Lab. (HTML)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1331090
• Report Number(s): ORNL/TM-2016/274; AF5810000; NEAF278; TRN: US1700485
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
SILICON CARBIDES
MOLYBDENUM
SILICON
TITANIUM
CARBON
CORROSION
JOINTS
BONDING
CORROSION RESISTANCE
NANOSTRUCTURES
POWDERS
SINTERING
DIFFUSION
SERVICE LIFE
LAYERS
PLATES
SUBSTRATES
COMPARATIVE EVALUATIONS