Interactions near the triple-phase boundaries metal/glass/air in planar solid oxide fuel cells

Hasanabadi, M. Fakouri; Kokabi, A.H.; Nemati, Ali; Ajabshir, Sina Zinatlou

doi:10.1016/j.ijhydene.2017.01.065

Cited by 13 publications

(6 citation statements)

References 52 publications

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“…In fact, glass-ceramics are considered to be the most promising materials for gas-tight sealing due to their low cost, ease of application, and achievable good properties such as low electrical conductivity, compatible coefficient of thermal expansion (CTE), good adhesion, and limited reactivity with other SOC components and atmospheres. 3 In the last two decades, various tests have been used to study the fracture toughness, [9][10][11][12] fracture strength [13][14][15][16][17] as well as creep behavior 18,19 of glass-ceramic sealants in a joined geometry, where the respective results appeared to be especially useful for comparing the quality of different joints. However, the mechanical properties measured in different laboratories were not always comparable, indicating the urgent need for more standardized tests.…”

Section: Methods Of Characterizationmentioning

confidence: 99%

“…In the last two decades, various tests have been used to study the fracture toughness, 9–12 fracture strength 13–17 as well as creep behavior 18,19 of glass–ceramic sealants in a joined geometry, where the respective results appeared to be especially useful for comparing the quality of different joints. However, the mechanical properties measured in different laboratories were not always comparable, indicating the urgent need for more standardized tests.…”

Section: Introductionmentioning

confidence: 99%

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Advanced analysis of flexural test results of sealant for solid oxide cells

Hasanabadi

Kokabi

Faghihi-Sani

et al. 2021

Int J Applied Ceramic Tech

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The conventional relations for calculating the fracture stresses consider only elastic deformation but ignore viscoelastic and viscoplastic behaviors. Measuring the joining strength of a composite glass sealant‐metallic interconnect specimen at solid oxide cell application relevant at high temperatures is a case where such effects can become significant. In the current study, three‐point and four‐point bending test results were analyzed using the finite element method (FEM) to assess systematic and random errors. It is shown that plastic deformation of the steel interconnect material at high temperature, although having a large effect on the stress distribution in the steel/glass–ceramic/steel specimen, does not cause a significant difference in the FEM‐derived true and the standard equation‐based analytically derived flexural stress values. It is also observed that even if the viscous flow of the glass–ceramic is considered in the simulations, the samples’ behavior in a realistic testing condition is not biased significantly by inelastic behavior due to the short testing time.

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Section: Methods Of Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advanced analysis of flexural test results of sealant for solid oxide cells

Hasanabadi

Kokabi

Faghihi-Sani

et al. 2021

Int J Applied Ceramic Tech

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“…52 However, the low viscosity of selfhealing glass flows from the sealing point. Many researchers [53][54][55][56][57][58] have targeted their research on the compliant "self-healing glasses." Hue et al 53 have reported the alkaline earth borosilicate compliant/viscous glass sealant.…”

Section: Compliant Glass Sealantsmentioning

confidence: 99%

“…However, the low viscosity of self‐healing glass flows from the sealing point. Many researchers 53–58 have targeted their research on the compliant “self‐healing glasses.” Hue et al 53 have reported the alkaline earth borosilicate compliant/viscous glass sealant. During the interaction study, the BaAl 2 Si 2 O 8 phase is formed at the glass/metal interface due to the reaction between the glass sealant and aluminized ferritic steal (SS441).…”

Section: Different Concepts Of Sealingmentioning

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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“…Therefore, numerous studies published in recent decades are devoted to developing a glass sealant composition that meets the requirements of chemical and thermal compatibility with SOFC materials. To date, many suitable compositions have been developed and tested under operating conditions 1–6 …”

Section: Introductionmentioning

confidence: 99%

The development of 3D technology for the creation of glass sealants for tubular oxide fuel cells

Saetova

Shirokova

Krainova

et al. 2022

Int J of Appl Glass Sci

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The creation of gas-tight connections in solid oxide fuel cells (SOFCs) requires finding a suitable glass sealant composition and developing high-tech approaches to sealant molding. 3D printing has been used successfully to mold SOFC functional materials (anode, electrolyte), and this study tests its applicability to glass sealant printing. We have found the composition of the glass-filled polymer compound to print glass sealants for tubular SOFCs: the polycaprolactone/filler ratio is 60/40 wt%. Silica has been shown to be a good model filler to polish the 3D printing technology. Polymer decomposition during sealing leads to the formation of voids and seal failure, which indicates that the filler content of 40 wt % is insufficient for such purposes.

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Interactions near the triple-phase boundaries metal/glass/air in planar solid oxide fuel cells

Cited by 13 publications

References 52 publications

Advanced analysis of flexural test results of sealant for solid oxide cells

Advanced analysis of flexural test results of sealant for solid oxide cells

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

The development of 3D technology for the creation of glass sealants for tubular oxide fuel cells

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