This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1016/j.memsci.2016.01.050 in citations.
Joining of ceramic Ba$_{0.5}$Sr$_{0.5}$Co$_{0.8}$Fe$_{0.2}$O$_{3}$ membranes for oxygen production to high temperature alloys
Joining of ceramic Ba$_{0.5}$Sr$_{0.5}$Co$_{0.8}$Fe$_{0.2}$O$_{3}$ membranes for oxygen production to high temperature alloys
The possibility of joining dense ceramic BCSF tubular membranes to metal alloys using a silver braze was investigated. Four different alloys (Crofer 22 APU®, Kanthal APM®, Haynes 214® and EN 1.4841) were considered and the influence of their oxide scale stability/reactivity and their thermal expansi...
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Personal Name(s): | Kiebach, Ragnar (Corresponding author) |
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Engelbrecht, Kurt / Kwok, Kawai / Molin, Sebastian / Søgaard, Martin / Niehoff, Patrick / Schulze-Küppers, Falk / Kriegel, Ralf / Kluge, Jens / Hendriksen, Peter Vang | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IEK-1 |
Published in: | Journal of membrane science, 506 (2016) S. 11 - 21 |
Imprint: |
New York, NY [u.a.]
Elsevier
2016
|
DOI: |
10.1016/j.memsci.2016.01.050 |
Document Type: |
Journal Article |
Research Program: |
Helmholtz Interdisciplinary Doctoral Training in Energy and Climate Research (HITEC) Highly Efficient Tubular Membranes for Oxy-Combustion Methods and Concepts for Material Development |
Publikationsportal JuSER |
The possibility of joining dense ceramic BCSF tubular membranes to metal alloys using a silver braze was investigated. Four different alloys (Crofer 22 APU®, Kanthal APM®, Haynes 214® and EN 1.4841) were considered and the influence of their oxide scale stability/reactivity and their thermal expansion coefficient on the stability of the final joint was evaluated. Leak tight assemblies were obtained only for steels with a thermal expansion coefficient of >16 [10−6 K−1] and protective coating. Proof-of-concept oxygen flux measurements up to 830 °C were performed on these assemblies, demonstrating the functionality of the developed hot sealing. In addition a simulation of the stresses occurring in the joint assembly during use was performed for different materials and geometries. The obtained results fit well with the experimental findings. |