Comparative Evaluation of Spark Plasma and Conventional Sintering of NiO/YSZ Layers for Metal-Supported Solid Oxide Fuel Cells
| Autor: | Ivashutenko A. S., Ionov I. V., Maznoy A. S., Sivkov A. A., Solovyev A. A. |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | High Temperature Materials and Processes, Vol 37, Iss 4, Pp 351-356 (2018) |
| Druh dokumentu: | article |
| ISSN: | 0334-6455 2191-0324 |
| DOI: | 10.1515/htmp-2016-0193 |
| Popis: | NiO/YSZ anode layers for metal-supported solid oxide fuel cells (MS-SOFCs) were fabricated by spark plasma sintering (SPS). SPS parameters were optimized in order to achive anodes of the desired microstructure. The effect of sintering conditions on microstructure of NiO/YSZ was studied by scanning electron microscopy and X-ray diffractometry. Also NiO/YSZ layers were formed on porous metal supports by a screen-printing method and sintered in inert atmosphere and vacuum by conventional sintering technique. At temperatures above 1,200 °С in inert atmosphere and vacuum nickel oxide dissociation and its massive agglomeration are observed during conventional sintering. SPS process allows sintering of NiO/YSZ granules without NiO dissociation, Ni agglomeration and the metal substrate oxidation at 1,100 °С. SPS sintered anodes demonstrate sufficiently homogeneous distribution of NiO and YSZ making a conduction path for electrons and ions. Well-bonded metal support/anode interface was obtained. |
| Databáze: | Directory of Open Access Journals |
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