SUSPENSION PLASMA SPRAYING OF INTERMEDIATE TEMPERATURE SOFC COMPONENTS USING AN AXIAL INJECTION DC TORCH

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DOIResolve DOI: http://doi.org/10.4028/www.scientific.net/MSF.539-543.1332
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TypeArticle
Proceedings titleMaterials Science Forum
ConferenceThe Internatial Conference on Processing & Manufacturing of Advanced Materials (THERMEC 2006), Vancouver, British Columbia, July 04-08, 2006
Volume539
Pages13321337; # of pages: 6
SubjectAir-Plasma Spraying; Intermediate Temperature SOF; Nanostructured Coating; Suspension Plasma Spraying
AbstractIntermediate temperature SOFC components, such as dense, nanostructured SDC electrolytes (samarium doped ceria) and porous anode sublayers were fabricated by suspension plasma spraying using an axial feed dc plasma torch. The liquid carrier employed in this approach allowed for controlled injection of much finer particles than in conventional thermal spraying, leading to thin coatings with a refined microstructure. Dense, thin (<10(m) and non-fractured electrolytes were created. Various processing routes for SOFC half-cells, using tape-cased, plasmasprayed and suspension-sprayed anodes, were explored. Loss of integrity and non-continuous coverage of the anode constituted the principal difficulties in the subsequent electrolyte deposition. The role of suspension feedstock particle size is discussed. Amongst various schemes investigated, a processing route that employs sequential suspension plasma spraying steps for both the electrolyte and the anode, using relatively large primary particles in the feedstock, constituted the most promising approach.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Industrial Materials Institute; NRC Institute for Fuel Cell Innovation
Peer reviewedNo
NRC number48833
NPARC number15884096
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Record identifierc22d82af-5811-43bd-adf8-9459261bf29a
Record created2010-07-30
Record modified2016-05-09
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