Comparative Evaluation of Spark Plasma and Conventional Sintering of NiO/YSZ Layers for Metal-Supported Solid Oxide Fuel Cells
| Autor: | Anatoly Maznoy, A. A. Sivkov, A. S. Ivashutenko, I. V. Ionov, Andrey A. Solovyev |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Technology
Materials science anode microstructure Oxide Sintering Spark plasma sintering Chemicals: Manufacture use etc 02 engineering and technology TP1-1185 010402 general chemistry 01 natural sciences chemistry.chemical_compound solid oxide fuel cell General Materials Science Physical and Theoretical Chemistry Yttria-stabilized zirconia cermet Chemical technology Non-blocking I/O TP200-248 Cermet 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Anode 81.20.ev Chemical engineering chemistry Mechanics of Materials Solid oxide fuel cell 0210 nano-technology spark plasma sintering |
| Zdroj: | High Temperature Materials and Processes, Vol 37, Iss 4, Pp 351-356 (2018) |
| ISSN: | 2191-0324 0334-6455 |
| 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: | OpenAIRE |
| Externí odkaz: |
|