Stability of SiC/SiC fibre composites exposed to Li4SiO4 and Li2TiO3 in fusion relevant conditions

A. La Barbera, B. Riccardi, A. Donato, C.A. Nannetti, L.F. Moreschi

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Abstract

The physico-chemical stability of a commercial 3D SiCf/SiC composite provided with an outer CVD SiC protective layer was studied after exposure to flowing helium with 0.1% H2at 800°C in contact with lithium silicate and lithium titanate. Exposure tests were carried out for 216, 1000 and 10 000 h in an especially designed loop. The mechanical characteristics of the SiCf/SiC composite in contact with Li4SiO4were almost unaffected by the exposure, while those in contact with Li2TiO3were slightly worsened. SiC coating transformation was clearly detected on samples exposed to both lithium silicate and titanate. © 2001 Elsevier Science B.V.
Original languageEnglish
Pages (from-to)223 - 231
Number of pages9
JournalJournal of Nuclear Materials
Volume294
Issue number3
DOIs
Publication statusPublished - Apr 2001
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials

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