High temperature oxidation behavior of SUS430 SOFC interconnects with Mn-Co spinel coating in air

Chuan Jia, Yuhao Wang, Sebastian Molin, Yongliang Zhang, Ming Chen*, Minfang Han

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

In this study, SUS430 alloy is evaluated for its high temperature corrosion properties as a possible material for interconnects of solid oxide fuel cells (SOFCs). Samples are coated with Mn-Co by commercial physical vapor deposition (PVD) process and oxidized in air for 1250 h at 800 _C. A dense cubic Mn-Co-Fe spinel layer is formed on the surface, showing great effect on corrosion reduction compared with the samples without coating. A corrosion rate constant of 1.22 _ 10_14 g2 cm_4 s_1 is presented in this study for the coated samples, with an area specific resistance (ASR) of around 31mU cm2. After the experiment, microstructures of the samples are analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM)/energy dispersive spectroscopy (EDS), which shows that the SUS430 alloy with Mn-Co coating can be considered as one of the low-cost material for the interconnects of SOFCs with good performance.
Original languageEnglish
JournalJournal of Alloys and Compounds
Volume787
Pages (from-to)1327-1335
ISSN0925-8388
DOIs
Publication statusPublished - 2019

Keywords

  • Solid oxide fuel cell
  • Interconnect
  • Spinel coating
  • Oxidation behavior

Cite this

Jia, Chuan ; Wang, Yuhao ; Molin, Sebastian ; Zhang, Yongliang ; Chen, Ming ; Han, Minfang. / High temperature oxidation behavior of SUS430 SOFC interconnects with Mn-Co spinel coating in air. In: Journal of Alloys and Compounds. 2019 ; Vol. 787. pp. 1327-1335.
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title = "High temperature oxidation behavior of SUS430 SOFC interconnects with Mn-Co spinel coating in air",
abstract = "In this study, SUS430 alloy is evaluated for its high temperature corrosion properties as a possible material for interconnects of solid oxide fuel cells (SOFCs). Samples are coated with Mn-Co by commercial physical vapor deposition (PVD) process and oxidized in air for 1250 h at 800 _C. A dense cubic Mn-Co-Fe spinel layer is formed on the surface, showing great effect on corrosion reduction compared with the samples without coating. A corrosion rate constant of 1.22 _ 10_14 g2 cm_4 s_1 is presented in this study for the coated samples, with an area specific resistance (ASR) of around 31mU cm2. After the experiment, microstructures of the samples are analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM)/energy dispersive spectroscopy (EDS), which shows that the SUS430 alloy with Mn-Co coating can be considered as one of the low-cost material for the interconnects of SOFCs with good performance.",
keywords = "Solid oxide fuel cell, Interconnect, Spinel coating, Oxidation behavior",
author = "Chuan Jia and Yuhao Wang and Sebastian Molin and Yongliang Zhang and Ming Chen and Minfang Han",
year = "2019",
doi = "10.1016/j.jallcom.2019.01.015",
language = "English",
volume = "787",
pages = "1327--1335",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
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}

High temperature oxidation behavior of SUS430 SOFC interconnects with Mn-Co spinel coating in air. / Jia, Chuan; Wang, Yuhao; Molin, Sebastian; Zhang, Yongliang; Chen, Ming; Han, Minfang.

In: Journal of Alloys and Compounds, Vol. 787, 2019, p. 1327-1335.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - High temperature oxidation behavior of SUS430 SOFC interconnects with Mn-Co spinel coating in air

AU - Jia, Chuan

AU - Wang, Yuhao

AU - Molin, Sebastian

AU - Zhang, Yongliang

AU - Chen, Ming

AU - Han, Minfang

PY - 2019

Y1 - 2019

N2 - In this study, SUS430 alloy is evaluated for its high temperature corrosion properties as a possible material for interconnects of solid oxide fuel cells (SOFCs). Samples are coated with Mn-Co by commercial physical vapor deposition (PVD) process and oxidized in air for 1250 h at 800 _C. A dense cubic Mn-Co-Fe spinel layer is formed on the surface, showing great effect on corrosion reduction compared with the samples without coating. A corrosion rate constant of 1.22 _ 10_14 g2 cm_4 s_1 is presented in this study for the coated samples, with an area specific resistance (ASR) of around 31mU cm2. After the experiment, microstructures of the samples are analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM)/energy dispersive spectroscopy (EDS), which shows that the SUS430 alloy with Mn-Co coating can be considered as one of the low-cost material for the interconnects of SOFCs with good performance.

AB - In this study, SUS430 alloy is evaluated for its high temperature corrosion properties as a possible material for interconnects of solid oxide fuel cells (SOFCs). Samples are coated with Mn-Co by commercial physical vapor deposition (PVD) process and oxidized in air for 1250 h at 800 _C. A dense cubic Mn-Co-Fe spinel layer is formed on the surface, showing great effect on corrosion reduction compared with the samples without coating. A corrosion rate constant of 1.22 _ 10_14 g2 cm_4 s_1 is presented in this study for the coated samples, with an area specific resistance (ASR) of around 31mU cm2. After the experiment, microstructures of the samples are analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM)/energy dispersive spectroscopy (EDS), which shows that the SUS430 alloy with Mn-Co coating can be considered as one of the low-cost material for the interconnects of SOFCs with good performance.

KW - Solid oxide fuel cell

KW - Interconnect

KW - Spinel coating

KW - Oxidation behavior

U2 - 10.1016/j.jallcom.2019.01.015

DO - 10.1016/j.jallcom.2019.01.015

M3 - Journal article

VL - 787

SP - 1327

EP - 1335

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

SN - 0925-8388

ER -