Journal Article

FZJ-2022-01859

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Sealing behaviour of glass-based composites for oxygen transport membranes

Li, X. (Corresponding author)FZJ* ; Groß-Barsnick, S. M.FZJ* ; Koppitz, T.FZJ* ; Baumann, S.FZJ* ; Meulenberg, W. A.FZJ* ; Natour, G.FZJ*

2022
Elsevier Science Amsterdam [u.a.]

This record in other databases:  

Please use a persistent id in citations: http://hdl.handle.net/2128/31196  doi:10.1016/j.jeurceramsoc.2022.01.052

Abstract: In this study, seven different filler materials in different proportions were added to a Ba-Ca-Si glass matrix “H” to investigate new sealant with higher thermal expansion coefficient (CTE) value and good sealing performance for application in oxygen transport membrane (OTM). SrTi0.75Fe0.25O3-δ (STF25) was used as an OTM, and the sealing partners were ferritic steel Aluchrom and pre-oxidized Aluchrom. Compatibility tests were carried out to investigate the feasibility of the composites. Higher CTE values were found in dilatometer tests on composite samples by adding 40 wt% Ag (HAg40) and 30 wt% Ni-Cr (HNC30). Gas-tightness measurements of sandwiched samples produced appropriate helium leakage rates in the range of 10−6 mbar·l·s−1. Sealing behaviour of sealants HAg40 and HNC30 were investigated by joining STF25 and as-delivered/pre-oxidized Aluchrom together. Scanning electron microscopy (SEM) on cross-sections of the joints revealed a homogeneous microstructure and good adherence of the glass sealants to support metals and STF25.

---

Contributing Institute(s):

1. Werkstoffsynthese und Herstellungsverfahren (IEK-1)
2. Zentralinstitut für Technologie (ZEA-1)

Research Program(s):

1. 1232 - Power-based Fuels and Chemicals (POF4-123) (POF4-123)

Appears in the scientific report 2022

---

Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---