Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 501, Issue -, Pages 172-180Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2018.01.033
Keywords
Joining; Glass-ceramic; SiC; Irradiation
Funding
- European Union Seventh Framework Programme [312483]
- Bilateral Project Japan-Italy - Italian Foreign Ministry (Progetti di Grande Rilevanza Nazionale [PGR00143]
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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 x 10(20) ions/m(2) at temperatures of 400 and 800 degrees 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. (c) 2018 Elsevier B.V. All rights reserved.
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