Cavity formation in a SiC/SiC composite under simultaneous irradiation of hydrogen, helium and silicon ions

Shuhei Miwa, Akira Hasegawa, Tomitsugu Taguchi, Naoki Igawa, Katsunori Abe

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

Cavity formation was investigated in a SiC/SiC composite under multi-ion beam irradiation up to 10dpa at 1073 K, 1273 K and 1573 K by transmission electron microscopy. The cavity formation behavior of each component of the composite was dependent on the component's grain structure, the helium and/or hydrogen implantation mode, and irradiation temperature. It was found that helium rather than hydrogen is likely to enhance cavity formation or cavity swelling. The contributions of helium and hydrogen to cavity formation in the composite components are discussed in detail.

Original languageEnglish
Pages (from-to)536-542
Number of pages7
JournalMaterials Transactions
Volume46
Issue number3
DOIs
Publication statusPublished - 2005 Mar

Keywords

  • Helium
  • Hydrogen
  • SiC fiber reinforced SiC matrix composite
  • Transmission electron microscopy
  • Triple ion beam irradiation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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