Development of an advanced bond coat for solid oxide fuel cell interconnector applications

Yeh, An‐Chou; Chen, Yuming; Liu, Chien‐Kuo; Shong, Wei-Ja

doi:10.1016/j.jpowsour.2015.07.076

Cited by 10 publications

(3 citation statements)

References 38 publications

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“…Prior to their future exploitation, a fundamental study of their stability is a required step. The stability of materials is of primary importance per se; indeed, reliable stability opens up new perspectives for applications including coatings, interconnects (fuel cell) 4 , and heat engine components 5 .…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability of Medium- and High-Entropy Alloys of 3d-Transition Metals

Fourmont

Рогачев

Gallet

et al. 2021

J. Phase Equilib. Diffus.

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A family of High-Entropy Alloys (HEA) composed of 3d-transitional metals is attracting great interest due to the mechanical, magnetic and electrical properties that are valuable in the development of advanced structural and functional materials. In this work, we studied X-CoCrFeNi HEAs, where X = Al, Ti, or Cu, produced by mechanical alloying by means of highenergy ball milling. Powder mixture composed of elemental metal powders transforms in a homogeneous alloy (super-saturated solid solution) due to the intense diffusion which takes place in the course of friction and shear deformation of the metal particles during the mechanical alloying. The thermal stability of the HEA phases was experimentally studied in the range 873 K -1273 K using high-temperature X-ray diffraction and compared with the results of thermodynamic calculations (Calphad).

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Section: Introductionmentioning

confidence: 99%

Thermal Stability of Medium- and High-Entropy Alloys of 3d-Transition Metals

Fourmont

Рогачев

Gallet

et al. 2021

J. Phase Equilib. Diffus.

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“…As an alternative to chromium poisoning, several technologies have been studied including modification of steel composition [14,15], surface treatments [18] and application of protective coatings [7][8][9][19][20][21]. Application of protective coatings is a simple, efficient and cheaper method that inhibits the phenomenon of chromium poisoning and maintains a good specific electrical resistance.…”

Section: Introductionmentioning

confidence: 99%

Obtaining Mn-Co Alloys in AISI 430 Steel from Lithium-Ion Battery Recycling: Application in SOFC Interconnectors

et al. 2020

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The recycling of exhausted lithium-ion batteries from mobile phones originate five solutions with different Co and Mn proportions that were used as electrolytic solutions to obtain Mn-Co spinel coatings on the surface of AISI430 stainless steel. The coatings are intended to contain chromium volatility in the working conditions of Solid Oxide Fuel Cells (SOFC) metallic interconnectors. Potentiostatic electrodeposition was the technique used to obtain Mn-Co coatings from low concentration electrolytes at pH = 3.0 and potential applied −1.3 V. Charge efficiency data were used for sample optimization. Three optimized samples were subjected to oxidation heat treatment at 800 °C for 300 h and then characterized by XRD, SEM and EDS. The results showed that the addition of manganese ions instead of cobalt ions in the electrolytic bath produces more stable and well-distributed deposits as the ratio of the two ions becomes equal in the electrolytic bath. Thin, homogeneous and stable spinel coatings (Mn, Co)3O4 2.8 μm and 3.9 μm thick were able to block chromium volatility when exposed to SOFC operating temperature.

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“…Stainless steel Interconnect plates with lower operating temperatures and desirable mechanical and electrical properties have gained more attention than ceramic plates. [4][5][6] One commonly used stainless steel in interconnect plates applications is Crofer 22 APU. 7,8 The presence of manganese in the chemical composition of this steel leads to the formation of a unique protective scale during oxidation at high temperatures.…”

mentioning

confidence: 99%

Development of Mn-Co and Mn-Co-CeO₂ Coatings on Crofer 22 APU Steel for Solid Oxide Fuel Cell Interconnects

Mohsenifar,

Irannejad,

Ebrahimifar

2023

J. Electrochem. Soc.

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The present study compared the performance of uncoated, Mn-Co and Mn-Co-CeO2-coated Crofer 22 APU ferritic stainless steel interconnects. The samples were oxidized for 500 h in an electric furnace at 800 °C. The surface morphology and phase structure of the samples before and after oxidation were examined using FESEM microscopy and X-ray diffraction (XRD) analysis, respectively. The electrical conductivity evaluation of the samples was also conducted by measuring the area specific resistance (ASR). The results indicated that the weight gain of the uncoated, Mn-Co and Mn-Co-CeO2-coated samples after 500 h of oxidation was 0.55, 0.58 and 0.27 mg.cm−2, respectively. Additionally, a comparison of the oxidation kinetics of the experimental samples revealed that the oxidation rate constant of the Mn-Co-CeO2-coated steel is 10 and 40 times lower than that of the Mn-Co-coated and uncoated steel, respectively. XRD analysis of the samples after oxidation confirmed the presence of MnCo2O4, Co3O4, and (Mn,Cr,Co)3O4 in the oxidized Mn-Co-coated, MnCo2O4, Co3O4, and CeO2 in the oxidized Mn-Co-CeO2-coated, and the chromium-containing phases (FeCr2O4, MnCr2O4, and Cr2O3) in the oxidized uncoated samples. The presence of phases with high electrical conductivity in the oxidized coated samples reduced their activation energy for conduction compared to the oxidized uncoated sample.

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Development of an advanced bond coat for solid oxide fuel cell interconnector applications

Cited by 10 publications

References 38 publications

Thermal Stability of Medium- and High-Entropy Alloys of 3d-Transition Metals

Thermal Stability of Medium- and High-Entropy Alloys of 3d-Transition Metals

Obtaining Mn-Co Alloys in AISI 430 Steel from Lithium-Ion Battery Recycling: Application in SOFC Interconnectors

Development of Mn-Co and Mn-Co-CeO₂ Coatings on Crofer 22 APU Steel for Solid Oxide Fuel Cell Interconnects

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Development of an advanced bond coat for solid oxide fuel cell interconnector applications

Cited by 10 publications

References 38 publications

Thermal Stability of Medium- and High-Entropy Alloys of 3d-Transition Metals

Thermal Stability of Medium- and High-Entropy Alloys of 3d-Transition Metals

Obtaining Mn-Co Alloys in AISI 430 Steel from Lithium-Ion Battery Recycling: Application in SOFC Interconnectors

Development of Mn-Co and Mn-Co-CeO2 Coatings on Crofer 22 APU Steel for Solid Oxide Fuel Cell Interconnects

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Development of Mn-Co and Mn-Co-CeO₂ Coatings on Crofer 22 APU Steel for Solid Oxide Fuel Cell Interconnects