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| Home > Publications database > Oxidation Behaviour and Phase Transformations of an Interconnect Material in Simulated Anode Environment of Intermediate Temperature Solid Oxide Fuel Cells > print |
| 001 | 824680 | ||
| 005 | 20240709094417.0 | ||
| 024 | 7 | _ | |2 doi |a 10.1080/09603409.2016.1244373 |
| 024 | 7 | _ | |2 ISSN |a 0960-3409 |
| 024 | 7 | _ | |2 ISSN |a 1878-6413 |
| 024 | 7 | _ | |2 WOS |a WOS:000389473300008 |
| 037 | _ | _ | |a FZJ-2016-07238 |
| 082 | _ | _ | |a 620 |
| 100 | 1 | _ | |0 P:(DE-HGF)0 |a Garcia-Fresnillo, L. |b 0 |
| 245 | _ | _ | |a Oxidation Behaviour and Phase Transformations of an Interconnect Material in Simulated Anode Environment of Intermediate Temperature Solid Oxide Fuel Cells |
| 260 | _ | _ | |a Amsterdam [u.a.] |b Elsevier Science |c 2016 |
| 336 | 7 | _ | |2 DRIVER |a article |
| 336 | 7 | _ | |2 DataCite |a Output Types/Journal article |
| 336 | 7 | _ | |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |a Journal Article |b journal |m journal |s 1481206382_21508 |
| 336 | 7 | _ | |2 BibTeX |a ARTICLE |
| 336 | 7 | _ | |2 ORCID |a JOURNAL_ARTICLE |
| 336 | 7 | _ | |0 0 |2 EndNote |a Journal Article |
| 520 | _ | _ | |a The oxidation behaviour and the phase transformations associated with high temperature exposure of a commercial ferritic interconnect steel, Crofer 22 H, was studied in a simulated solid oxide fuel cell (SOFC) anode atmosphere at 700 °C. Special emphasis was placed on the formation of the intermetallic sigma phase. No sigma phase was detected in the bulk alloy after 500 h of exposure of bare specimens. However, specimens which were pre-coated with a layer of nickel showed formation of an interdiffusion zone after as little as 2 h of exposure and sigma phase formation occurred after 10 h. The presence of the nickel layer, which simulates the contact between ferritic steel interconnects and a nickel mesh in a SOFC results in the formation of an austenitic zone and accelerated formation of a σ-phase rich layer at the ferrite/austenite interface. The ferritic steel is transformed into austenite due to the inward diffusion of nickel, σ-phase started to nucleate at the transformed austenite grain boundaries. The nucleation is enhanced by an increased Cr/Fe-ratio at that interface due to more pronounced diffusion of Fe, compared to Cr, in the direction of the Ni-layer. Different possible mechanisms for the nucleation and growth of σ-phase were identified. The experimental results led to the conclusion that sigma nucleates in the austenite and grows following an isothermal eutectoid-like decomposition. |
| 536 | _ | _ | |0 G:(DE-HGF)POF3-135 |a 135 - Fuel Cells (POF3-135) |c POF3-135 |f POF III |x 0 |
| 588 | _ | _ | |a Dataset connected to CrossRef |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Patel, R. |b 1 |
| 700 | 1 | _ | |0 P:(DE-Juel1)129770 |a Niewolak, Leszek |b 2 |
| 700 | 1 | _ | |0 P:(DE-Juel1)129782 |a Quadakkers, W. J. |b 3 |e Corresponding author |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Hua, M. |b 4 |
| 700 | 1 | _ | |0 P:(DE-Juel1)151222 |a Wang, Q. |b 5 |
| 700 | 1 | _ | |0 P:(DE-HGF)0 |a Meier, G. H. |b 6 |
| 773 | _ | _ | |0 PERI:(DE-600)2035150-1 |a 10.1080/09603409.2016.1244373 |g Vol. 34, no. 1, p. 61 - 77 |n 1 |p 61 - 77 |t Materials at high temperatures |v 34 |x 1878-6413 |y 2016 |
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