Paper Titles
Toughness Enhancement of Al2O3/Ce-TZP Functionally Graded Materials by Annealing in Inert Atmosphere
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Processing of a Graded Ceramic Cutting Tool in the Al2O3-ZrO2-Ti(C,N) System by Electrophoretic Deposition
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Development of Square-Shaped Large-Size WC/Co/Ni System FGM Fabricated by Spark Plasma Sintering (SPS) Method and Its Industrial Applications
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Strong Localization of Electromagnetic Wave in Epoxy/Ceramic Photonic Fractals with Mengersponge Structure Fabricated by Stereolithography
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Sintering Behavior of Multimodal Ceria Powder Mixtures for Fuel Cell Applications
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Synthesis and Characterization of Large NaX Zeolite Crystals by Continuous Crystallization
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Graded Microstructure at Fiber / Copper Matrix Interface in FRM Fabricated by the Reaction at Narrow Holes Method
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Effect of Microwave Heating on the Synthesis of Layered Double Hydroxide
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Preparing 3D Functional Gradients for SLS
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Sintering Behavior of Multimodal Ceria Powder Mixtures for Fuel Cell Applications

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Abstract:

Sub-micrometer scaled CGO (Ce0,9Gd0,1O1,95) powder is used in order to manufacture Ni/CGO functionally graded green bodies with high green densities. Thereby the near-shape manufacturing of Ni/CGO cermets by gel casting of CGO and Ni powder mixtures and electrophoretic impregnation of sub-micro scaled ceria doped particles into a Ni/CGO mesoporous matrix is described. Solids content of dispersed suspensions is varied as well as the mixing ratio of sub-micro sized and micro sized particles. The influence on green density and sintering behavior is investigated in order to achieve maximum CGO densities in combination with maximum ionic conductivity for potential use in SOFC. Shrinkage rates from sintering experiments with constant rates of heating (CRH) are analyzed to determine most suitable co-sintering conditions of Ni-Ni/CGO composite anode materials.

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Periodical:

Materials Science Forum (Volumes 492-493)

Pages:

725-730

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.492-493.725

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Online since:

August 2005

Authors:

G. Falk, N. Böhm, M. Wolff, Rolf Clasen

Keywords:

Ceria, Dispersion, Electrophoretic Deposition (EPD), Intermediate Temperature SOFC (IT-SOFC), Microstructure, Rheology, Sintering

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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