Joining of SiC/SiC

P. Colombo, B. Riccardi, A. Donato, G. Scarinci

Research output: Contribution to journalArticle

93 Citations (Scopus)

Abstract

Using a preceramic polymer, joints between SiC/SiCfceramic matrix composites were obtained. The polymer, upon pyrolysis at high temperature, transforms into a ceramic material and develops an adhesive bonding with the composite. The surface morphology of 2D and 3D SiC/SiCfcomposites did not allow satisfactory results to be obtained by a simple application of the method initially developed for monolithic SiC bodies, which employed the use of a pure silicone resin. Thus, active or inert fillers were mixed with the preceramic polymer, in order to reduce its volumetric shrinkage which occurs during pyrolysis. In particular, the joints realized using the silicone resin with Al-Si powder as reactive additive displayed remarkable shear strength (31.6 MPa maximum). Large standard deviation for the shear strength has nevertheless been measured. The proposed joining method is promising for the realization of fusion reactor blanket structures, even if presently the measured strength values are not fully satisfactory.
Original languageEnglish
Pages (from-to)127 - 135
Number of pages9
JournalJournal of Nuclear Materials
Volume278
Issue number2
DOIs
Publication statusPublished - 2000
Externally publishedYes

    Fingerprint

All Science Journal Classification (ASJC) codes

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

Cite this

Colombo, P., Riccardi, B., Donato, A., & Scarinci, G. (2000). Joining of SiC/SiC. Journal of Nuclear Materials, 278(2), 127 - 135. https://doi.org/10.1016/S0022-3115(99)00268-8