The influence of sintering additives on the irradiation resistance of NITE SiC

Takaaki Koyanagi, Sosuke Kondo, Tatsuya Hinoki

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

The effects of sintering additives on irradiation swelling and modulus for monolithic NITE SiC was studied using 5.1 MeV Si2+ ion irradiation up to 5 dpa at 553-1273 K. The elastic modulus of NITE SiC decreased less than ∼7% in the highest damage case of 553 K, 3 dpa, indicating that the additives did not negatively affect the modulus of irradiated NITE SiC. A sample containing 9% additives showed higher swelling rates than high purity CVD SiC at lower temperatures. At 553 K, 5 dpa, the swelling of NITE SiC (9 wt.%) was twice as large as that of CVD SiC. Analysis of the electron diffraction patterns showed amorphization of the secondary phase, which is likely a primary reason for the increased swelling.

Original languageEnglish
Pages (from-to)435-439
Number of pages5
JournalJournal of Nuclear Materials
Volume417
Issue number1-3
DOIs
Publication statusPublished - 2011 Oct 1
Externally publishedYes

ASJC Scopus subject areas

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

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