Preparation and Electrophoretic Deposition of an Yttrium Silicate Precursor Sol

Jana Grosse-Brauckmann; Günter Borchardt; Christos Argirusis

doi:10.4028/www.scientific.net/KEM.412.267

Paper Titles

Galvanostatic Electrophoretic Deposition of Yttriumsilicate on C/C-Si-SiC Composites
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Electrophoretic MEA Fabrication for High Performance DMFC
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Electrophoretically Deposited Porous Ceramics and their Characterisation by X-Ray Computer Tomography
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Textured α-Alumina through Electrophoretic Deposition and Templated Grain Growth
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Preparation and Electrophoretic Deposition of an Yttrium Silicate Precursor Sol
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Controlling of Surface Parameters of Particles Used for Electrocodeposition
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Aging Behavior of Yttria Stabilized Zirconia (YSZ) in Non Aqueous Suspensions for Electrophoretic Deposition Application
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Surface Modification of SiC Powder for Use in Electrophoretic Deposition
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Fabrication of Multi-Layered Thermoelectric Thick Films and their Thermoelectric Performance
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 412Preparation and Electrophoretic Deposition of an...

Preparation and Electrophoretic Deposition of an Yttrium Silicate Precursor Sol

Abstract:

. In the present work we used the sol-gel process to prepare Y2SiO5 precursor sols suitable for electrophoretic deposition (EPD). The sol synthesis was performed through the controlled hydrolysis of alkoxide solutions of tetraethoxysilane and yttriumoxoisopropoxide. During sol development emphasis was put on characterization of particles size and zeta potential of the formed aggregates. We succeeded in synthesizing a clear sol containing polymeric aggregates with acceptable particle charge. The electrophoretic deposition on glassy carbon or C/C-SiC slabs led to homogenous layers. At low sol concentrations micro cracks in the deposited layers were observed whereas higher concentrations led to thin and dense layers. During constant current EPD a constant voltage was recorded indicating that the deposited layer does not lead to an increase in resistivity in this kind of EPD system.

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Periodical:

Key Engineering Materials (Volume 412)

Pages:

267-272

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.412.267

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Online since:

June 2009

Authors:

Jana Grosse-Brauckmann, Günter Borchardt, Christos Argirusis

Keywords:

CC/SiC, Sol-Gel (SG), Yttrium Silicate

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