Thermal cycling of Crofer22APU-sealant-anode supported electrolyte joined structures for planar SOFCs up to 3000 h

F. Smeacetto; M. Salvo; A. Chrysanthou; T. Moskalewicz

doi:10.1016/j.matlet.2013.08.025

Thermal cycling of Crofer22APU-sealant-anode supported electrolyte joined structures for planar SOFCs up to 3000 h

F. Smeacetto, M. Salvo, A. Chrysanthou, T. Moskalewicz

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

Thermal cyclic tests in air were performed for Crofer22APU/glass-ceramic/ Anode-Supported-Electrolyte (ASE) joined samples for a total period of 3000 h. Different cooling rates from the SOFC operating temperature of 800 C to room temperature were carried out. Large and elongated voids were observed to develop just below the CrO/Cr-Mn spinel layer of the Crofer22APU. Diffusion of Al to the areas just below the protective oxide layer led to formation of AlO on the surface of the voids. The emergence of CaAlSiO as a new phase in the glass-ceramic was attributed to the diffusion of Ca away from the interfacial areas thus decreasing the proportion of Ca to Al and Si. The glass-ceramic sealant maintained good adherence with the Crofer22APU and the ASE without presence of any crack even after 3000 h of exposure.

Original language	English
Pages (from-to)	143-146
Number of pages	4
Journal	Materials Letters
Volume	111
DOIs	https://doi.org/10.1016/j.matlet.2013.08.025
Publication status	Published - 2013

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10.1016/j.matlet.2013.08.025

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title = "Thermal cycling of Crofer22APU-sealant-anode supported electrolyte joined structures for planar SOFCs up to 3000 h",

abstract = "Thermal cyclic tests in air were performed for Crofer22APU/glass-ceramic/ Anode-Supported-Electrolyte (ASE) joined samples for a total period of 3000 h. Different cooling rates from the SOFC operating temperature of 800 C to room temperature were carried out. Large and elongated voids were observed to develop just below the CrO/Cr-Mn spinel layer of the Crofer22APU. Diffusion of Al to the areas just below the protective oxide layer led to formation of AlO on the surface of the voids. The emergence of CaAlSiO as a new phase in the glass-ceramic was attributed to the diffusion of Ca away from the interfacial areas thus decreasing the proportion of Ca to Al and Si. The glass-ceramic sealant maintained good adherence with the Crofer22APU and the ASE without presence of any crack even after 3000 h of exposure.",

author = "F. Smeacetto and M. Salvo and A. Chrysanthou and T. Moskalewicz",

year = "2013",

doi = "10.1016/j.matlet.2013.08.025",

language = "English",

volume = "111",

pages = "143--146",

journal = "Materials Letters",

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T1 - Thermal cycling of Crofer22APU-sealant-anode supported electrolyte joined structures for planar SOFCs up to 3000 h

AU - Smeacetto, F.

AU - Salvo, M.

AU - Chrysanthou, A.

AU - Moskalewicz, T.

PY - 2013

Y1 - 2013

N2 - Thermal cyclic tests in air were performed for Crofer22APU/glass-ceramic/ Anode-Supported-Electrolyte (ASE) joined samples for a total period of 3000 h. Different cooling rates from the SOFC operating temperature of 800 C to room temperature were carried out. Large and elongated voids were observed to develop just below the CrO/Cr-Mn spinel layer of the Crofer22APU. Diffusion of Al to the areas just below the protective oxide layer led to formation of AlO on the surface of the voids. The emergence of CaAlSiO as a new phase in the glass-ceramic was attributed to the diffusion of Ca away from the interfacial areas thus decreasing the proportion of Ca to Al and Si. The glass-ceramic sealant maintained good adherence with the Crofer22APU and the ASE without presence of any crack even after 3000 h of exposure.

AB - Thermal cyclic tests in air were performed for Crofer22APU/glass-ceramic/ Anode-Supported-Electrolyte (ASE) joined samples for a total period of 3000 h. Different cooling rates from the SOFC operating temperature of 800 C to room temperature were carried out. Large and elongated voids were observed to develop just below the CrO/Cr-Mn spinel layer of the Crofer22APU. Diffusion of Al to the areas just below the protective oxide layer led to formation of AlO on the surface of the voids. The emergence of CaAlSiO as a new phase in the glass-ceramic was attributed to the diffusion of Ca away from the interfacial areas thus decreasing the proportion of Ca to Al and Si. The glass-ceramic sealant maintained good adherence with the Crofer22APU and the ASE without presence of any crack even after 3000 h of exposure.

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DO - 10.1016/j.matlet.2013.08.025

M3 - Article

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VL - 111

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EP - 146

JO - Materials Letters

JF - Materials Letters

SN - 0167-577X

ER -

Thermal cycling of Crofer22APU-sealant-anode supported electrolyte joined structures for planar SOFCs up to 3000 h

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