Study of solid-state reactions of SiC/SiC

L.C Alves, E. Alves, M.F. Da Silva, J.C Soares, A. Paúl, A. La Barbera, B. Riccardi

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Abstract

Among the advanced materials with potential interest for applications in fusion technology the SiC/SiCfcomposites are considered to be one of the most promising. We used microbeam RBS and PIXE techniques to follow the structural changes of several SiC/SiCfsamples in contact with lithium orthosilicate and lithium titanate breeders at 800°C for different time intervals. After 216 h of exposure the strongest reaction taking place was the oxidation of the composites. The oxidation rate was faster in the samples exposed to the orthosilicate. Simultaneously, lithium diffuses into all the composites and there is a noticeable loss of carbon. For longer exposure the thickness of the oxide layers extends to values above the depth of ion beam analysis. The formation of Ti-rich precipitates was also observed in the samples in contact with the Li titanate. © 2001 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)377 - 381
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume181
Issue number1-4
DOIs
Publication statusPublished - Jul 2001
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation

Cite this

Alves, L. C., Alves, E., Da Silva, M. F., Soares, J. C., Paúl, A., La Barbera, A., & Riccardi, B. (2001). Study of solid-state reactions of SiC/SiC. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 181(1-4), 377 - 381. https://doi.org/10.1016/S0168-583X(01)00331-7