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Compositional study of SiO2-Al2O3-CaO-MgO glasses as a sealing material for low temperature SOEC.

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Title: Compositional study of SiO2-Al2O3-CaO-MgO glasses as a sealing material for low temperature SOEC.
Authors: Kim, Tae Ryoung1 (AUTHOR), Gelija, Devarajulu1 (AUTHOR), Kim, Sun Dong2 (AUTHOR), Chung, Woon Jin1 (AUTHOR) wjin@kongju.ac.kr
Source: Ceramics International. Aug2025:Part A, Vol. 51 Issue 19, p27533-27543. 11p.
Subjects: Materials at low temperatures, Glass sealants, Glass transition temperature, Viscous flow, Scanning electron microscopes
Abstract: Silicate-based SiO 2 -Al 2 O 3 -CaO-MgO (SACM) glasses with varying Na 2 O content and additive oxides including ZrO 2 , TiO 2 , and P 2 O 5 were synthesized for solid oxide electrolyte cells (SOECs) operating at a low temperature of 650 °C. Structural and thermal characteristics were analyzed while varying the glass compositions to find a suitable sealing material with good adhesion to SOEC components, such as yttria-stabilized zirconia (YSZ) and metal interconnect (FC460). The glass transition temperature, coefficient of thermal expansion (CTE), and viscous flow at the sealing temperature of 750 °C were investigated. The adhesion characteristics were examined by joining YSZ and FC460 with the sealing glass. Among various additives such as ZrO 2 , TiO 2 , and P 2 O 5 , a high CTE and good adhesion properties were obtained for P 2 O 5 -added SACM glass sealants. Interaction between the glass and SOEC components was inspected by scanning electron microscope (SEM) after sealing and then aging at the operating temperature. Additionally, stability under thermal cycle and exposure to high temperature vapor atmosphere at 650 °C was also examined and discussed to demonstrate the practical feasibility of the present glass material for SOEC applications. [ABSTRACT FROM AUTHOR]
Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 186676635
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Compositional study of SiO2-Al2O3-CaO-MgO glasses as a sealing material for low temperature SOEC.
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  Data: <searchLink fieldCode="AR" term="%22Kim%2C+Tae+Ryoung%22">Kim, Tae Ryoung</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gelija%2C+Devarajulu%22">Gelija, Devarajulu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Sun+Dong%22">Kim, Sun Dong</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chung%2C+Woon+Jin%22">Chung, Woon Jin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wjin@kongju.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22Ceramics+International%22">Ceramics International</searchLink>. Aug2025:Part A, Vol. 51 Issue 19, p27533-27543. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Materials+at+low+temperatures%22">Materials at low temperatures</searchLink><br /><searchLink fieldCode="DE" term="%22Glass+sealants%22">Glass sealants</searchLink><br /><searchLink fieldCode="DE" term="%22Glass+transition+temperature%22">Glass transition temperature</searchLink><br /><searchLink fieldCode="DE" term="%22Viscous+flow%22">Viscous flow</searchLink><br /><searchLink fieldCode="DE" term="%22Scanning+electron+microscopes%22">Scanning electron microscopes</searchLink>
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  Label: Abstract
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  Data: Silicate-based SiO 2 -Al 2 O 3 -CaO-MgO (SACM) glasses with varying Na 2 O content and additive oxides including ZrO 2 , TiO 2 , and P 2 O 5 were synthesized for solid oxide electrolyte cells (SOECs) operating at a low temperature of 650 °C. Structural and thermal characteristics were analyzed while varying the glass compositions to find a suitable sealing material with good adhesion to SOEC components, such as yttria-stabilized zirconia (YSZ) and metal interconnect (FC460). The glass transition temperature, coefficient of thermal expansion (CTE), and viscous flow at the sealing temperature of 750 °C were investigated. The adhesion characteristics were examined by joining YSZ and FC460 with the sealing glass. Among various additives such as ZrO 2 , TiO 2 , and P 2 O 5 , a high CTE and good adhesion properties were obtained for P 2 O 5 -added SACM glass sealants. Interaction between the glass and SOEC components was inspected by scanning electron microscope (SEM) after sealing and then aging at the operating temperature. Additionally, stability under thermal cycle and exposure to high temperature vapor atmosphere at 650 °C was also examined and discussed to demonstrate the practical feasibility of the present glass material for SOEC applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Ceramics International is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.ceramint.2025.03.426
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      – Code: eng
        Text: English
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        PageCount: 11
        StartPage: 27533
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        Type: general
      – SubjectFull: Glass sealants
        Type: general
      – SubjectFull: Glass transition temperature
        Type: general
      – SubjectFull: Viscous flow
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      – SubjectFull: Scanning electron microscopes
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            NameFull: Gelija, Devarajulu
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              M: 08
              Text: Aug2025:Part A
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              Y: 2025
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