Hydrothermal corrosion of silicon carbide joints without radiation

Journal Article · Wed Sep 28 00:00:00 EDT 2016 · Journal of Nuclear Materials

DOI:https://doi.org/10.1016/j.jnucmat.2016.09.027· OSTI ID:1327661

Koyanagi, Takaaki ^[1]; Katoh, Yutai ^[1]; Terrani, Kurt A. ^[1]; Kim, Young-Jin ^[2]; Kiggans, James O. ^[1]; Hinoki, Tatsuya ^[3]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
2. GE Global Research Center, Schenectady, NY (United States)
3. Kyoto Univ. (Japan). Inst. of Advanced Energy

In this paper, hydrothermal corrosion of four types of the silicon carbide (SiC) to SiC plate joints were investigated under pressurized water reactor and boiling water reactor 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 joints withstood the corrosion tests for five weeks. The recession of the SiC substrates was limited. Based on the recession of the bonding layers, it was concluded that all the joints except for the molybdenum diffusion bond are promising under the reducing environments without radiation. Finally, the SiC nanopowder sintered joint was the most corrosion tolerant under the oxidizing environment among the four joints.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5). Advanced Fuel Campaign; USDOE
• Contributing Organization: GE Global Research Center, Schenectady, NY (United States); Kyoto Univ. (Japan)
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1327661
• Alternate ID(s): OSTI ID: 1359441
• Journal Information: Journal of Nuclear Materials, Vol. 481; ISSN 0022-3115
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE