Indentation fracture toughness of neutron irradiated silicon carbide

S. Nogami, A. Hasegawa, L. L. Snead

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27 Citations (Scopus)

Abstract

The indentation fracture toughness and other mechanical properties (elastic modulus and hardness) of high-purity stoichiometric chemical vapor deposition processed-SiC under neutron irradiation in a dose range of 1024-1025 n/m2 (En > 0.1 MeV) at the temperature range of 80-1150 °C were investigated. Indentation fracture toughness decreased slightly at the temperatures below 400 °C, and increased above 400 °C, for example, from 5.08 MPa m-1/2 (non-irradiated) to 6.52 MPa m-1/2 (800 °C neutron irradiated). Mechanical properties investigated in this study were significantly dependent on the irradiation temperature up to 1150 °C, while generally independent on the irradiation dose up to 7.7 dpa signifying low-dose saturation.

Original languageEnglish
Pages (from-to)1163-1167
Number of pages5
JournalJournal of Nuclear Materials
Volume307-311
Issue number2 SUPPL.
DOIs
Publication statusPublished - 2002 Dec

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

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