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

doi:10.1016/j.jnucmat.2018.01.033

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

Materials Science and Technology Div

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

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 language	English
Pages (from-to)	172-180
Number of pages	9
Journal	Journal of Nuclear Materials
Volume	501
DOIs	https://doi.org/10.1016/j.jnucmat.2018.01.033
State	Published - Apr 1 2018

Funding

The research leading to the results presented in this paper has received funding from the European Union Seventh Framework Programme under Grant Agreement 312483 - ESTEEM2 (Integrated Infrastructure Initiative–I3); this work was partially supported by the Bilateral Project Japan–Italy funded by the Italian Foreign Ministry (Progetti di Grande Rilevanza Nazionale (2010–2016) ( PGR00143 )).

Funders	Funder number
Italian Foreign Ministry
Progetti di Grande Rilevanza Nazionale	PGR00143
Seventh Framework Programme	312483 - ESTEEM2, I3

Keywords

Glass-ceramic
Irradiation
Joining
SiC

Access to Document

10.1016/j.jnucmat.2018.01.033

Cite this

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

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.",

keywords = "Glass-ceramic, Irradiation, Joining, SiC",

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

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doi = "10.1016/j.jnucmat.2018.01.033",

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T2 - A microstructural study of the effect of Si-ion irradiation

AU - Casalegno, Valentina

AU - Kondo, Sosuke

AU - Hinoki, Tatsuya

AU - Salvo, Milena

AU - Czyrska-Filemonowicz, Aleksandra

AU - Moskalewicz, Tomasz

AU - Katoh, Yutai

AU - Ferraris, Monica

PY - 2018/4/1

Y1 - 2018/4/1

N2 - 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.

AB - 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.

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