Effect of dual-beam-irradiation by helium and carbon ions on microstructure development of SiC/SiC composites

S. Nogami, A. Hasegawa, K. Abe, T. Taguchi, R. Yamada

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Microstructural changes of SiC-fiber reinforced SiC-matrix (SiCf/SiC) composites after simultaneous helium-ion and carbon-ion irradiations were studied. SiCf/SiC composite specimens were irradiated up to 10 dpa and 1000 at. ppm He at 1073 and 1223 K. Cross-sectional microstructural observation and irradiated surface analyses were performed. Dimensional changes in SiC-fibers and pyrolytic graphite layers were observed but a dimensional change was not observed in the SiC-matrix. Microstructural features such as voids and dislocation loops were not observed in these experimental conditions.

Original languageEnglish
Pages (from-to)268-272
Number of pages5
JournalJournal of Nuclear Materials
Volume283-287
Issue numberPART I
DOIs
Publication statusPublished - 2000 Dec

ASJC Scopus subject areas

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

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