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Mechanical investigation of glass ceramic brazed ceramic and steel composites

Walter, T. M.; Bucharsky, E. C.; Schell, K. G.; Hoffmann, M. J.

Abstract:
Solid oxide fuel cells (SOFC) convert chemical energy from hydrogen, methane, or other hydrocarbons directly into electrical energy and heat. Advantages are low noise during operation as well as relatively low pollutant emissions. This makes them interesting for stationary applications, eg combined heat and power plants for domestic use and for mobile applications, when there is a demand for integrating auxiliary power units. The high operating temperatures of about 850°C and the simultaneous presence by both, reducing and oxidizing atmospheres place high demands on the components of a SOFC. Due to these requirements, glass‐ceramics are proposed as sealants between interconnector and electrolyte. They provide lower costs and lower weight than commercially used silver solders. Furthermore, they have the following impressive benefits: The sealants are electrical insulating, chemical stable and by careful materials selection and adapted manufacturing processes, they adhere well on steel and on ceramic substrates. In order to characterize the adhesion of glass‐ceramic sealants on steel and on zirconia substrates, layer‐like composites are fabricated by screen‐printing and subsequent sintering in air. ... mehr

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Verlagsausgabe §
DOI: 10.5445/IR/1000123084
Veröffentlicht am 09.12.2020
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Keramische Werkstoffe und Technologien (IAM-KWT)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 01.2021
Sprache Englisch
Identifikator ISSN: 2041-1286, 2041-1294
KITopen-ID: 1000123084
Erschienen in International journal of applied glass science
Verlag Wiley
Band 12
Heft 1
Seiten 175-182
Vorab online veröffentlicht am 12.07.2020
Schlagwörter Charalambides, composites, Glass-ceramic-sealant, mechanical testing, SOFC
Nachgewiesen in Dimensions
Scopus
Web of Science
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