Synthesis and properties of a barium aluminosilicate solid oxide fuel cell glass–ceramic sealant

Meinhardt, Kerry D.; Kim, Dong-Sang; Chou, Yeong‐Shyung; Weil, K. Scott

doi:10.1016/j.jpowsour.2008.03.079

Cited by 158 publications

(95 citation statements)

References 24 publications

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“…Some compositions of glasses employed as sealants in SOFC are summarized in Table 2, and selected properties are provided in Table 3. Table 3 continued Glass code Metals commonly employed as interconnects in fuel cell designs include various austenitic and ferritic stainless steels, for example, Fe20Cr and FeCrAlY alloys, in addition to Ni-based superalloys, as summarized in [59][60][61][62][63][64][65][66][67][68][69][70][71][72][73][74], together with some BaO-free silicate glasses [74][75][76][77][78][79][80][81][82][83][84][85][86][87][88][89]. Low-silica and silica-free borate-based compositions have also been reported [90][91][92][93].…”

Section: Sofc Alloysmentioning

confidence: 99%

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

et al. 2011

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There has, in recent years, been a major revival of interest in glass-and glass-ceramic-to-metal seals and coatings for new applications. Experience dictates that many factors need to be taken into consideration in the successful design and manufacture of high-quality seals, particularly if an adequate component lifetime is to be achieved. For example, during their preparation, undesirable reactions may occur between diffusing metal species and glass constituents, and these can lead to the formation of highly localized internal stresses, which can initiate failure of a seal either during manufacture or, more seriously, whilst in service due to the influence of static fatigue. In the case of high-temperature systems, reactions under hostile operating conditions also need to be taken into consideration. In this review, the factors learnt from past experience that influence the formation and lifetime behaviour of glass and glass-ceramic/metal systems are briefly introduced, and their relevance to the newer applications including solid oxide fuel cell sealants and coatings on titanium for biomedical applications is discussed.

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Section: Sofc Alloysmentioning

confidence: 99%

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

et al. 2011

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“…In this article we review sealing of glass-to-metal/alloy and glassceramics-to-metal/alloy with a focus on some recent sealing glass-ceramic development [1][2][3][11][12][13]. One of the recent applications of glass-ceramics, which places great demand on materials performance, is sealing of solid oxide fuel cells (SOFCs) using glass/glassceramics, to effectively channel fuel and oxidant (commonly air) [14][15][16][17][18][19][20]. SOFC based power generation presents many advantages, including higher efficiency, lower environmental impact and ability to co-generate heat from the exhaust gas to name a few, as compared to conventional power generation [21][22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Some recent studies on glass/glass-ceramics for use as sealants with special emphasis for high temperature applications

et al. 2012

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Glass-ceramics owing to a combination of useful properties such as tuneable thermal expansion coefficient (TEC), good mechanical durability and chemical inertness find widespread uses in a variety of applications including seals and coatings. Glass-ceramic-to-metal seals have been fabricated with various silicate, phosphate and borate based oxide glasses depending upon the intended application. In this article, we review our studies on various glass and glass-ceramics materials development with a view to understand bonding behaviour with metals/alloys at ambient and high temperatures through a comprehensive structure property correlation investigations. Detail studies on BaO-CaO-Al 2 O 3 -B 2 O 3 -SiO 2 (BCABS), barium strontium alumino-silicate, and strontium alumino-silicate with different additives (like Nd 2 O 3 , La 2 O 3 , NiO, TiO 2 , V 2 O 5 , ZrO 2, Cr 2 O 3, and P 2 O 5 ) and barium/strontiun zinc silicate (B/SZS) glass-ceramics for high temperature sealing. We shall illustrate the role of various thermo-physical and structural characterization techniques that allowed optimum selection of materials and processing parameters. We particularly highlight the complementary role of NMR and XRD in studying the material at the short range and long range length scales.

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“…Lower T g than working temperature of SOFC is always favourable because the stresses due to thermal expansion mismatch always develop below this temperature whereas the stress arising from CTE mismatch above T g can be tolerated by the glass sealant due to its viscous flow at SOFC working temperature [34]. The thermal stress s, which arises due to CTE mismatch between the glass and metals, is given by the following relation [35,36]:…”

Section: Thermal Propertiesmentioning

confidence: 99%

Chemical compatibility between MgO–SiO2–B2O3–La2O3 glass sealant and low, high temperature electrolytes for solid oxide fuel cell applications

Kaur

Pandey

Singh

2012

International Journal of Hydrogen Energy

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Synthesis and properties of a barium aluminosilicate solid oxide fuel cell glass–ceramic sealant

Cited by 158 publications

References 24 publications

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

Recent developments in the preparation, characterization and applications of glass- and glass–ceramic-to-metal seals and coatings

Some recent studies on glass/glass-ceramics for use as sealants with special emphasis for high temperature applications

Chemical compatibility between MgO–SiO2–B2O3–La2O3 glass sealant and low, high temperature electrolytes for solid oxide fuel cell applications

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