Oxidation and Cr-evaporation behavior of MnCo based spinel and composite coated AISI 430 steel

Bidabadi, Mohammad Hassan Shirani; Siripongsakul, Thamrongsin; Thublaor, Thammaporn; Wiman, Panya; Chandra-ambhorn, Somrerk

doi:10.1016/j.surfcoat.2022.128176

Cited by 17 publications

(4 citation statements)

References 77 publications

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“…The simplest one has been discussed previously but there are other novel methods such as sol–gel dip coating, 118 spray coating, 119 sputtering, 120 and electrophoretic deposition. 121 One group of researchers 122 explored the electrophoretic deposition (ED) technique to coat a spinel over the stainless-steel substrate, characterized it and tested in air at very high temperatures.…”

Section: Durability Improvement Strategies Of Cobalt-based Cathodesmentioning

confidence: 99%

Improving the durability of cobaltite cathode of solid oxide fuel cells – a review

Mehdi,

Hussain,

Song

et al. 2023

RSC Adv.

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Section: Durability Improvement Strategies Of Cobalt-based Cathodesmentioning

confidence: 99%

Improving the durability of cobaltite cathode of solid oxide fuel cells – a review

Mehdi,

Hussain,

Song

et al. 2023

RSC Adv.

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“…Numerous studies reported that Mn-Co oxide spinel has high electrical conductivity, good oxidation resistance, and low chromium volatilization [18][19][20][21][22][23][24]. Various deposition methods have been proposed to apply Mn-Co oxide spinel on the surface of metallic interconnects, such as slurry coating [18,25], sol-gel [26][27][28], plasma spray [29][30][31], electrophoretic deposition [32][33][34], and electrodeposition [10,11,[35][36][37][38][39][40]. Among the deposition methods above, the electrodeposition method is attractive for its economy and feasibility.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Mn–Co Alloys Electrodeposited on AISI 430 Ferritic Stainless Steel for SOFC Interconnect Applications

Thanedburapasup

Wetchirarat

Muengjai

et al. 2023

Metals

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Mn–Co alloys were electroplated on AISI 430 stainless steel using an electrodeposition technique with the aim to reduce oxidation and chromium volatilization. The electroplating parameters were designed to improve the coating quality. The increased current density with decreased MnSO4 content resulted in a denser coating layer. A sample coated with 0.10 M CoSO4 and 0.50 MnSO4 at 350 mA cm−2 showed the best oxidation resistance after being oxidized at 800 °C for 90 h. The X-ray diffraction (XRD) result revealed that the oxide growth on the surface of the coated samples mainly formed oxides of MnCo2O4, MnCr2O4, and Cr2O3. The chromium volatilization was evaluated by exposing the coated samples to humidified synthetic air at 800 °C for 96 h. The mass flux of Cr volatilization was on the order of 10−11 g cm−2 s−1. Furthermore, different heat treatments in O2 and CO2 atmospheres were compared. Annealing in CO2 at 800 °C for 4 h helped increase the Mn–Co coating density. The relationship between the porosity and its failure behavior was also discussed.

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“…Moreover, the spinel coatings also exhibit a high capability to reduce the migration of volatile chromium species from Cr-rich oxide to the electrode-electrolyte-gas interface, leading to a drastic degradation of SOFCs performance [23,24]. Many researchers have attempted to improve the performance of Mn-Co spinel by adding elements of Cu [15,16,[25][26][27][28][29][30][31][32][33], Ni [25,34,35], and Fe [30,31,36]. Our previous works, Mn-Co spinel and doped Mn-Co spinel coatings have been done by using various techniques such as electrochemical deposition [15,16,33] and slurry coating [37].…”

Section: Introductionmentioning

confidence: 99%

“…Many researchers have attempted to improve the performance of Mn-Co spinel by adding elements of Cu [15,16,[25][26][27][28][29][30][31][32][33], Ni [25,34,35], and Fe [30,31,36]. Our previous works, Mn-Co spinel and doped Mn-Co spinel coatings have been done by using various techniques such as electrochemical deposition [15,16,33] and slurry coating [37]. These works reported that the oxidation rate and chromium volatilisation of the coated samples were lower than the bare AISI 430 stainless steel in humidified oxygen.…”

Section: Introductionmentioning

confidence: 99%

Oxidation behaviour of Mn-Co spinel coating on AISI 430 ferritic stainless steel with and without Cu in Ar-CO2-H2O atmosphere

et al. 2023

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AISI 430 ferritic stainless steel is a promising candidate for utilising as interconnects of solid oxide fuel cells due to its cost effectiveness and durability. Many methods for applying coating on steel substrates have been developed in order to decrease the degradation of steel due to oxidation rate and chromium volatile problems. Manganese-cobalt spinel exhibits high conductivity, thermal expansion compatible with ferritic stainless steels, and forms a barrier to inhibit chromium migration during oxidation. Copper can be added to manganese-cobalt spinel to improve electrical conductivity of the spinel coating. This work investigated oxide scale formation and oxidation rate of Mn-Co and Mn-Co-Cu coated samples in comparison with uncoated steel. The coated samples were prepared on the AISI 430 ferritic stainless steel using the electrodeposition technique. The oxidation rate was tested at 800℃ in Ar-20% CO2-5% H2O for 96 h. The results showed that both Mn-Co and Mn-Co-Cu coated samples could be formed continuous oxide layers. The SEM image showed a chromium oxide layer under the manganese-cobalt coating layer. The oxidation rate of the samples coated with Mn-Co spinel and Mn-Co-Cu spinel was lower than that of the uncoated steel.

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Oxidation and Cr-evaporation behavior of MnCo based spinel and composite coated AISI 430 steel

Cited by 17 publications

References 77 publications

Improving the durability of cobaltite cathode of solid oxide fuel cells – a review

Improving the durability of cobaltite cathode of solid oxide fuel cells – a review

Fabrication of Mn–Co Alloys Electrodeposited on AISI 430 Ferritic Stainless Steel for SOFC Interconnect Applications

Oxidation behaviour of Mn-Co spinel coating on AISI 430 ferritic stainless steel with and without Cu in Ar-CO2-H2O atmosphere

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