ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Intermediate temperature SOFC components, such as dense, nanostructured SDCelectrolytes (samarium doped ceria) and porous anode sublayers were fabricated by suspensionplasma spraying using an axial feed dc plasma torch. The liquid carrier employed in this approachallowed 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-fracturedelectrolytes were created. Various processing routes for SOFC half-cells, using tape-cased, plasmasprayedand suspension-sprayed anodes, were explored. Loss of integrity and non-continuouscoverage 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 electrolyteand the anode, using relatively large primary particles in the feedstock, constituted the mostpromising approach
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.1332.pdf
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