BaO–B2O3–SiO2–Al2O3 sealing glass for intermediate temperature solid oxide fuel cell

Lin, Sung-En; Cheng, Y.R.; Wang, Wei

doi:10.1016/j.jnoncrysol.2011.09.013

Cited by 29 publications

(8 citation statements)

References 22 publications

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“…The detailed glass preparation and crystallization kinetic behavior of five compositions (G0-G4) close to BaSiO 3 -BaB 2 O 4 eutectic compound were accomplished and reported in our previous work. 33 Two crystalline phases, BaSiO 3 (BS) and BaAl 2 Si 2 O 8 (H), might grow in the glasses and appear very an-isotropic shapes after a few hundred hours annealing at the temperatures between 650 and 800 • C. The glass-ceramics appeared strong residual stresses and poor structural integrity. Therefore, new formulae were developed with an appropriate glass transition temperature (T g ), slightly lower than the highest operation temperature, matched CTE to YSZ electrolyte, good chemical stability and acceptable electric resistivity, and good wettability with the parts being sealed.…”

Section: Introductionmentioning

confidence: 98%

Synthesis and long-term test of borosilicate-based sealing glass for solid oxide fuel cells

Lin¹,

Cheng²,

Wang³

2011

Journal of the European Ceramic Society

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Section: Introductionmentioning

confidence: 98%

Synthesis and long-term test of borosilicate-based sealing glass for solid oxide fuel cells

Lin¹,

Cheng²,

Wang³

2011

Journal of the European Ceramic Society

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“…Alkali metal oxides (Na 2 O and K 2 O) reduce the viscosity, improve the wettability and enhance the CTE of glass, however, they are not the best choice due to their high chemical reactivity and low electrical resistivity . Among alkaline earth metals oxides, barium oxide (BaO) has been intensively used in the past . The addition of BaO increases the CTE and reduces the glass transition temperature, but has various disadvantages, ie it reacts with Cr present in the steel interconnect and forms barium chromate, a high CTE phase that can cause delamination at the sealant/interconnect interface due to stress generation .…”

Section: Introductionmentioning

confidence: 99%

Design and characterization of novel glass‐ceramic sealants for solid oxide electrolysis cell (SOEC) applications

Javed

Sabato

Herbrig

et al. 2018

Int J Applied Ceramic Tech

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In this work, three new glass-ceramic compositions are designed and characterized as sealant materials for solid oxide electrolysis cells (SOEC), having operating temperature of 850°C. The crystallization and the sintering behavior of the glasses are investigated by using differential thermal analysis (DTA) and heating stage microscopy (HSM) respectively. The glasses show glass transition temperatures of 715-740°C, while the coefficients of thermal expansion (CTE) of 9.3-10.3 9 10 À6 K À1 (200-500°C) are measured for the glass-ceramics, matching with the CTEs of the other cell components. The compatibility between the glassceramic sealants, the 3YSZ electrolyte and the Crofer22APU interconnect is examined by means of SEM and EDS, in the as-joined condition and after 1000 hours at 850°C in air. Compositional changes in the glass-ceramic sealants are reviewed and discussed with respect to the formed crystalline phases before and after the aging treatment at 850°C. K E Y W O R D S crystals/crystallization, Interfaces, SOEC, thermal expansion ---

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“…, and CTE of borosilicate glass sealants [78][79][80] F I G U R E 9 Effect of intermediate oxides on the coefficient of the thermal expansion of different glass compositions 78,[93][94][95] undesirable low CTE containing crystalline phases. 98,99 Bloom et al 100 examined a commercial Corning glass 0080, for its use as sealants for the SOFC.…”

Section: Effect Of Various Additives/ Modifiers On Glass Sealingmentioning

confidence: 99%

“…Effect of intermediate oxides on the coefficient of the thermal expansion of different glass compositions 78,93–95 …”

Section: Effect Of Different Glass Constituents On Sealing Propertiesmentioning

confidence: 99%

Review on silicate and borosilicate‐based glass sealants and their interaction with components of solid oxide fuel cell

Singh

Walia

2021

Intl J of Energy Research

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A lot of research is going on in the field of glass science to commercialize solid oxide fuel cells (SOFCs). Still, it is a big challenge to develop appropriate glass sealants for a longer duration and sustaining in the operating conditions of this power source. Mixed alkaline earth metal oxides containing silicate or borosilicate glasses could be most suitable as a rigid glass sealant in SOFCs in comparison with borate-and phosphate-based glass sealants. In this review article, the need for the sealants in the planar design of SOFCs, the effect of different modifiers, and intermediate oxides on sealing properties of glasses and glassceramics, particularly, silicate-and borosilicate-based glass sealants have been reviewed. Interaction study of glass sealants with common electrolytes and interconnect materials is also overviewed in this article. In addition to these, future perspectives and suggestions for suitable seal development are also proposed. Novelty statementThis review article is related to the glass sealants for a highly efficient and environment friendly solid oxide fuel cell energy conversion device. Still, it is a big challenge to develop an appropriate sealant to commercialize this energy device. This article provides the researchers with not only progress and latest development in the field of glass sealants but also suggestion and future prospects to develop the sealants.

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BaO–B2O3–SiO2–Al2O3 sealing glass for intermediate temperature solid oxide fuel cell

Cited by 29 publications

References 22 publications

Synthesis and long-term test of borosilicate-based sealing glass for solid oxide fuel cells

Synthesis and long-term test of borosilicate-based sealing glass for solid oxide fuel cells

Design and characterization of novel glass‐ceramic sealants for solid oxide electrolysis cell (SOEC) applications

Review on silicate and borosilicate‐based glass sealants and their interaction with components of solid oxide fuel cell

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