Determination of the bonding strength in solid oxide fuel cells' interfaces by Schwickerath crack initiation test. Issue 11 (September 2017)

• Record Type: Journal Article
• Authors: Boccaccini, D.N.; Sevecek, O.; Frandsen, H.L.; Dlouhy, I.; Molin, S.; Charlas, B.; Hjelm, J.; Cannio, M.; Hendriksen, P.V.
• Is Part Of: Journal of the European Ceramic Society. Volume 37:Issue 11(2017)
• Page Start: 3565
• Page End: 3578
• Publication Date: 2017-09
• Subjects: Schwickerath crack-initiation test -- Three-point bending test -- SOFC interfaces -- Metal-ceramic bond strength; Ceramic materials -- Periodicals; Composite materials -- Periodicals; Matériaux céramiques -- Périodiques; Composites -- Périodiques; Ceramic materials; Composite materials; Periodicals; Electronic journals; 666.05
• DOI: 10.1016/j.jeurceramsoc.2017.04.018
• Languages: English
• ISSNs: 0955-2219

Abstract

Abstract: An adaptation of the Schwickerath crack initiation test (ISO 9693) was used to determine the bonding strength between an anode support and three different cathodes with a solid oxide fuel cell interconnect. Interfacial elemental characterization of the interfaces was carried out by SEM/EDS analysis on fracture surfaces to investigate the bonding mechanisms. SEM/EDS of fresh fractures were also performed to determine the cohesion/adhesion mechanism of bonding. Calculations of the residual stresses were determined by finite element simulation using ANSYS, based on thermo-mechanical properties of the materials obtained by measurement, calculation or literature.