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

doi:10.1016/j.jallcom.2019.01.015

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

Department of Energy Conversion and Storage

Tsinghua University

Research output: Contribution to journal › Journal article › Research › peer-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 language	English
Journal	Journal of Alloys and Compounds
Volume	787
Pages (from-to)	1327-1335
ISSN	0925-8388
DOIs	https://doi.org/10.1016/j.jallcom.2019.01.015
Publication status	Published - 2019

Keywords

Solid oxide fuel cell
Interconnect
Spinel coating
Oxidation behavior

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10.1016/j.jallcom.2019.01.015

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@article{53252eb149344484bd46560ff89c8310,

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",

publisher = "Elsevier",

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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

SN - 0925-8388

VL - 787

SP - 1327

EP - 1335

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

ER -

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

Abstract

Keywords

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