High-temperature residual strain measurements, using neutron diffraction, in brazed Cu/CFC graphite divertor structures

M. Ceretti, R. Coppola, E. Di Pietro, C. Nardi

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Abstract

This work presents a study of residual strain evolution in a three layer castelled mock-up for ITER obtained brazing carbon fibre composite (CFC) graphite with dispersion strengthened Cu (and with a GLIDCOP interlayer). Neutron diffraction measurements were carried out, on graphite at 30°C, 300°C and 600°C and on dispersion strengthened (DS) Cu at 600°C. For each material, the reference, unstrained value of the lattice parameter was obtained by measuring a powder of the same material at the same temperatures. While in DS Cu negligible strain values are found at high temperature, a more complicated evolution of the strains is observed in CFC graphite relating to sample geometry. © 1998 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)1005 - 1009
Number of pages5
JournalJournal of Nuclear Materials
Volume258-263
Issue numberPART 1 A
DOIs
Publication statusPublished - 1998
Externally publishedYes

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All Science Journal Classification (ASJC) codes

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

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