CaO-Al2O3 glass-ceramic as a joining material for SiC based components: A microstructural study of the effect of Si-ion irradiation

Valentina Casalegno, Sosuke Kondo, Tatsuya Hinoki, Milena Salvo, Aleksandra Czyrska-Filemonowicz, Tomasz Moskalewicz, Yutai Katoh, Monica Ferraris

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

The aim of this work was to investigate and discuss the microstructure and interface reaction of a calcia-alumina based glass-ceramic (CA) with SiC. CA has been used for several years as a glass-ceramic for pressure-less joining of SiC based components. In the present work, the crystalline phases in the CA glass-ceramic and at the CA/SiC interface were investigated and the absence of any detectable amorphous phase was assessed. In order to provide a better understanding of the effect of irradiation on the joining material and on the joints, Si ion irradiation was performed both on bulk CA and CA joined SiC. CA glass-ceramic and CA joined SiC were both irradiated with 5.1 MeV Si2+ ions to 3.3 × 1020 ions/m2 at temperatures of 400 and 800 °C at DuET facility, Kyoto University. This corresponds to a damage level of 5 dpa for SiC averaged over the damage range. This paper presents the results of a microstructural analysis of the irradiated samples as well as an evaluation of the dimensional stability of the CA glass-ceramic and its irradiation temperature and/or damage dependence.

Original languageEnglish
Pages (from-to)172-180
Number of pages9
JournalJournal of Nuclear Materials
Volume501
DOIs
Publication statusPublished - 2018 Apr 1
Externally publishedYes

Keywords

  • Glass-ceramic
  • Irradiation
  • Joining
  • SiC

ASJC Scopus subject areas

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

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