Glass–ceramic seal to join Crofer 22 APU alloy to YSZ ceramic in planar SOFCs

Smeacetto, Federico; Salvo, Milena; Ferraris, Monica; Cho, J; Boccaccını, Aldo R.

doi:10.1016/j.jeurceramsoc.2007.05.006

Cited by 150 publications

(85 citation statements)

References 28 publications

(28 reference statements)

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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%

“…It is important that these reactions are avoided or minimized and it has been noted, for example, that unwanted interactions between stainless steel and glassceramics can be minimized by applying a thin plasmasprayed coating of zirconia to the steel prior to sealing [103]. Pre-oxidation of the metal components prior to sealing has also been found to be beneficial in minimizing diffusion of Cr and Fe into the glass-ceramic both during sealing and during cell operation [77,78], as illustrated in Fig. 15.…”

Section: Sofc Alloysmentioning

confidence: 99%

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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%

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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“…For today's SOFC manufacture, the first three components are made of state-of-the-art ceramics, such as respectively Nickel Oxide -Yttria Stabilized Zirconia (NiO-YSZ), YSZ and Lanthanum Strontium Manganite (LSM). Interconnects are fabricated usually of high performance stainless steel alloys [9][10][11][12]. Below we will mostly investigate planar SOFCs, because data for this type are more abundant than for tubular SOFCs.…”

Section: Cost Requirements For Sofcsmentioning

confidence: 99%

Learning curves for solid oxide fuel cells

Rivera-Tinoco

Schoots

Zwaan

2012

Energy Conversion and Management

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We present learning curves for solid oxide fuel cells (SOFCs) and combined heat and power (CHP) SOFC systems with an electric capacity between 1 and 250 kW. On the basis of the cost breakdown of production cost data from fuel cell manufacturers, we developed a bottom-up model that allows for determining overall manufacturing costs from their respective cost components, among which material, energy, labor, and capital charges. The results obtained from our model prove to deviate by at most 13% from total cost figures quoted in the literature. For the early pilot stage of development, we find for SOFC manufacturing a learning rate between 14% and 17%, and for total SOFC system fabrication between 16% and 19%. We argue that the corresponding cost reductions result largely from learning-by-searching effects (R&D) rather than learning-by-doing. When considering a longer time frame that includes the early commercial production stage, we find learning rates between 14% and 39%, which represent a mix of phenomena such as learning-by-doing, learning-by-searching, economies-of-scale and automation.

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“…One of the major challenges for commercializing SOFCs, especially planar-SOFCs, concerns sealant materials. A critical issue in the fabrication of planar SOFCs is the sealing of the electrolyte with the metallic interconnect [2,3].…”

Section: Introductionmentioning

confidence: 99%

Crystallization behaviors and seal application of basalt based glass-ceramics

Ates

Onen

Ercenk

et al. 2017

AIP Conference Proceedings

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The investigation of the effect of particle size and velocity on solid particle wear properties of basalt base glass-ceramics AIP Conference Proceedings 1809, 020022 (2017) Abstract. Basalt based glass-ceramics were prepared by conventional melt-quenching technique and subsequently converted to glass-ceramics by a controlled nucleation and crystallization process. Glass materials were obtained by melt at 1500ºC and quenched in cold water. The powder materials were made by milling and spin coating. The powders were applied on the 430 stainless steel interconnector material, and heat treatment was carried out. The interface characteristics between the glass-ceramic layer and interconnector were investigated by using X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The results showed that the basalt base glass-ceramic sealant material exhibited promising properties to use for SOFC.

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Glass–ceramic seal to join Crofer 22 APU alloy to YSZ ceramic in planar SOFCs

Cited by 150 publications

References 28 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

Learning curves for solid oxide fuel cells

Crystallization behaviors and seal application of basalt based glass-ceramics

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