Behaviour of 54.4SiO2-13.7Na2O-1.7K2O-5.0CaO-12.4MgO-0.6Y2O3-11.3Al2O3-0.9B2O3 HT-SOFC glass sealant under oxidising and reducing atmospheres

Krainova, D. A.; Saetova, N. S.; Polyakova, I. N.; Фарленков, А. С.; Zamyatin, D. A.; Кузьмин, А. В.

doi:10.1016/j.ceramint.2021.11.151

Cited by 6 publications

(3 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In perspective of the glass‐ceramics being seen as a potential SOFC sealant, it is of interest to study the density of the base glasses first since it directly relates to their viscosity and adherence for SOFC application 16,17 . The base glass with Cu nanoparticles (NPG‐1) shows an apparent density of 2.54 ± 0.02 g.cm −3 , which increases to 2.60 ± 0.02 g.cm −3 and 2.62 ± 0.02 g.cm −3 , respectively on substitution by Ag and Au nanoparticles (NPG‐2 and NPG‐3 glasses).…”

Section: Resultsmentioning

confidence: 99%

“…In perspective of the glass-ceramics being seen as a potential SOFC sealant, it is of interest to study the density of the base glasses first since it directly relates to their viscosity and adherence for SOFC application. 16,17 The base glass with Cu nanoparticles (NPG-1) shows an apparent density of 2.54 ± 0.02 g.cm −3 , which increases to 2.60 ± 0.02 g.cm −3 and 2.62 ± 0.02 g.cm −3 , respectively on substitution by Ag and Au nanoparticles (NPG-2 and NPG-3 glasses). This increase in density is primarily related to the higher atomic The conventional melt-quenching at 1550 ± 10 • C for 2 h was sufficient to obtain bubble-free, homogeneous base glasses from various compositions (NPG-1, NPG-2, and NPG-3).…”

Section: Base Glass Characterizationmentioning

confidence: 99%

See 1 more Smart Citation

Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application

Garai

Roy

2023

Int J Ceramic Engine & Sci

View full text Add to dashboard Cite

The present work illustrates the effect of Ag and Au nanoparticle addition on the density, microstructure, phase formation and thermal performance of K 2 O-MgO-B 2 O 3 -Al 2 O 3 -SiO 2 -F glass-ceramics considered as a potential sealant material for solid oxide fuel cell (SOFC) applications. Addition of 0.2 wt.% Ag and Au nanoparticles caused a steep increase in the density of the base glasses in comparison to the glass containing an equivalent amount (0.2 wt%) of Cu nanoparticle. The glass-ceramics were prepared from the base glasses by controlled heat treatment at 900 • C, a temperature relevant for SOFC operation. They were multicrystalline having fluorophlogopite (KMg 3 AlSi 3 O 10 F 2 ) as the predominant crystal phase and norbergite (Mg 2 SiO 4 .MgF 2 ) and enstatite (MgSiO 3 ) as additional phases. Fluorophlogopite crystals form in both platelike and rod-like morphologies within the glass matrix in the microstructure of the glass-ceramics. The size of the plate-shaped fluorophlogopite crystals increases for Ag nanoparticles containing glass-ceramics in comparison to either Cu or Au nanoparticles containing glass-ceramics. The density of the Ag and Au nanoparticle glass-ceramics are also considerably higher due to the formation of a compact interlocked crystalline microstructures. The Au nanoparticle containing glass-ceramics is characterized by a large thermal expansion (coefficient of thermal expansion, CTE= 11.29 × 10 −6 /K in 50-800 • C range) which is comparable to other SOFC components. This glass/glass-ceramics sealant also possess maximum volume shrinkage in the range of 30-900 • C as well as nearly constant CTE without any considerable decrease up to 10 cycles of SOFC operations making it suitable for SOFC sealant applications. K E Y W O R D Scoefficient of thermal expansion, glass-ceramics, microstructure, sealing materials, solid oxide fuel cells (SOFCs) This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Base Glass Characterizationmentioning

confidence: 99%

Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application

Garai

Roy

2023

Int J Ceramic Engine & Sci

View full text Add to dashboard Cite

show abstract

“…The properties of glass sealants can be controlled by changing the glass composition [20][21][22] and the introduction of filles into the glass matrix to obtain composites [19,23,24]. Several scientific groups studying barium-containing and barium-free glass sealants and led by the following scientists can be mentioned: K. Singh and G. Kaur [20,25,26], F. Smeacetto and A.G. Sabato [27][28][29], X. Wang and Y. Dong [19,30,31], and A. Kuzmin and N. Saetova [32][33][34][35]. However, the sealant compositions presented in the cited studies are complex and contain more than four oxides.…”

Section: Introductionmentioning

confidence: 99%

Barium Silicate Glasses and Glass–Ceramic Seals for YSZ-Based Electrochemical Devices

et al. 2023

Self Cite

View full text Add to dashboard Cite

The effect of partial SiO2 substitution with Al2O3 and B2O3 on the thermal properties and crystallization of glass sealants in the (50 − x)SiO2–30BaO–20MgO–xAl2O3(B2O3) (wt %) system is studied. It is established that the coefficient of thermal expansion of all obtained glasses lies within a range of 8.2–9.9 × 10−6 K−1. Alumina-doped glasses crystallize after quenching, while samples containing boron oxide are completely amorphous. Magnesium silicates are formed in all glasses after exposure at 1000 °C for 125 h. After 500 h of exposure, a noticeable diffusion of zirconium ions is observed from the YSZ electrolyte to the glass sealant volume, resulting in the formation of the BaZrSi3O9 compound. The crystallization and products of interaction between YSZ ceramics and boron-containing sealants have no significant effects on the adhesion and properties of glass sealants, which makes them promising for applications in electrochemical devices.

show abstract

Torsional behaviour of a glass-ceramic joined alumina coated Crofer 22 APU steel

Pierre

Ferraris

Ritucci³

et al. 2022

Ceramics International

View full text Add to dashboard Cite

Behaviour of 54.4SiO2-13.7Na2O-1.7K2O-5.0CaO-12.4MgO-0.6Y2O3-11.3Al2O3-0.9B2O3 HT-SOFC glass sealant under oxidising and reducing atmospheres

Cited by 6 publications

References 32 publications

Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application

Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application

Barium Silicate Glasses and Glass–Ceramic Seals for YSZ-Based Electrochemical Devices

Torsional behaviour of a glass-ceramic joined alumina coated Crofer 22 APU steel

Contact Info

Product

Resources

About

Behaviour of 54.4SiO2-13.7Na2O-1.7K2O-5.0CaO-12.4MgO-0.6Y2O3-11.3Al2O3-0.9B2O3 HT-SOFC glass sealant under oxidising and reducing atmospheres

Cited by 6 publications

References 32 publications

Performance evaluation for Ag and Au nanoparticle containing K2O‐MgO‐B2O3‐Al2O3‐SiO2‐F glass sealants for SOFC application

Performance evaluation for Ag and Au nanoparticle containing K2O‐MgO‐B2O3‐Al2O3‐SiO2‐F glass sealants for SOFC application

Barium Silicate Glasses and Glass–Ceramic Seals for YSZ-Based Electrochemical Devices

Torsional behaviour of a glass-ceramic joined alumina coated Crofer 22 APU steel

Contact Info

Product

Resources

About

Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application

Performance evaluation for Ag and Au nanoparticle containing K₂O‐MgO‐B₂O₃‐Al₂O₃‐SiO₂‐F glass sealants for SOFC application