The production of porous layers for the solid oxide fuel cell by vacuum plasma spraying

Book · Sun Dec 31 00:00:00 EST 1995

OSTI ID:379564

Fendler, E; Henne, R; Lang, M ^[1]

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1. DLR-Inst. of Technical Thermodynamics, Stuttgart (Germany)

The vacuum plasma spraying (VPS) method was used to produce porous perovskite and Ni/YSZ (Yttria Stabilized Zirconia) cermet layers as cathode and anode for a SOFC, respectively. The perovskite powder was deposited without decomposition of the perovskite phase due to the use of Laval-nozzles and the adaption of spray parameters. The deposition of porous Ni/YSZ cermets demanded a modification of the Laval-nozzle. With this modification high deposition rates compared to conventional nozzles could be attained. The deposition of NiAl-YSZ and subsequently etching of Al is a successful method to produce anode layers with very fine porosity. Up to now the feasibility of producing porous deposits was examined. The next step of investigation will be the electrochemical testing of the electrodes. The results of those tests will influence the further development of anode`s and cathode`s microstructure.

• OSTI ID: 379564
• Report Number(s): CONF-9509182-; ISBN 0-87170-541-9; TRN: IM9644%%20
• Resource Relation: Conference: 1995 National thermal spray conference, Houston, TX (United States), 11-15 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Advances in thermal spray science and technology. Proceedings of the 8. national thermal spray conference; Berndt, C.C.; Sampath, S. [eds.]; PB: 795 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
30 DIRECT ENERGY CONVERSION
LANTHANUM OXIDES
PLASMA ARC SPRAYING
STRONTIUM OXIDES
MANGANESE OXIDES
COMPOSITE MATERIALS
NICKEL
ZIRCONIUM OXIDES
YTTRIUM OXIDES
NICKEL ALLOYS
ALUMINIUM ALLOYS
SOLID ELECTROLYTE FUEL CELLS
ELECTRODES
POWDERS
MORPHOLOGY
SCANNING ELECTRON MICROSCOPY
GRAIN SIZE
AGGLOMERATION
ETCHING
OPTICAL MICROSCOPY
X-RAY DIFFRACTION
ELECTRIC CONDUCTIVITY
EXPERIMENTAL DATA