Journal Article

FZJ-2021-01706

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Micro-scale evolution of mechanical properties of glass-ceramic sealant for solid oxide fuel/electrolysis cells

Fakouri Hasanabadi, M. (Corresponding author) ; Malzbender, J.FZJ* ; Groß-Barsnick, S. M.FZJ* ; Abdoli, H. ; Kokabi, A. H. ; Faghihi-Sani, M. A.

2021
Ceramurgia73399 Faenza

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/27596  doi:10.1016/j.ceramint.2020.09.250

Abstract: The structural integrity of the sealant is critical for the reliability of solid oxide cells (SOCs) stacks. In this study, elastic modulus (E), hardness (H) and fracture toughness (KIC) of a rapid crystallizing glass of BaO–CaO–SiO2 system termed “sealant G” are reported as determined using an indentation test method at room temperature. A wide range of indentation loads (1 mN–10 N) was used to investigate the load-dependency of these mechanical properties. Values of 95 ± 12 GPa, 5.8 ± 0.2 GPa and 1.15 ± 0.07 MPa m0.5 were derived for E, H and KIC using the most suitable indentation loads. An application relevant annealing treatment of 500 h at 800 °C does not lead to a significant change of the mechanical properties. Potential self-healing behavior of the sealant has also been studied by electron microscopy, based on heat treatment of samples with indentation-induced cracks for 70 h at 850 °C. Although the sealant G is considered to be fully crystallized, evidence indicates that its cracks can be healed even in the absence of a dead load.

---

Contributing Institute(s):

1. Werkstoffstruktur und -eigenschaften (IEK-2)
2. Zentralinstitut für Technologie (ZEA-1)

Research Program(s):

1. 211 - Die Atmosphäre im globalen Wandel (POF4-211) (POF4-211)
2. 122 - Elektrochemische Energiespeicherung (POF4-122) (POF4-122)

Appears in the scientific report 2021

---

Database coverage:
; ; ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

---