INFLUENCE OF POWDER SIZE DISTRIBUTIONS ON MICROSTRUCTURAL FEATURES OF FINELY STRUCTURED PLASMA SPRAYED COATINGS

C. Delbos; V. Rat; C. Bonhomme; J. Fazilleau; J. F. Coudert; Pierre Fauchais

doi:10.1615/HighTempMatProc.v8.i3.50

High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes

Главный редакторs: Valiantsin M. Astashynski (open in a new tab) Andrey V. Gusarov (open in a new tab)

Ассоциированный редактор: Nikolai N. Cherenda (open in a new tab)

Выходит 4 номеров в год

ISSN Печать: 1093-3611

ISSN Онлайн: 1940-4360

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INFLUENCE OF POWDER SIZE DISTRIBUTIONS ON MICROSTRUCTURAL FEATURES OF FINELY STRUCTURED PLASMA SPRAYED COATINGS

Том 8, Выпуск 3, 2004, pp. 397-406

DOI: 10.1615/HighTempMatProc.v8.i3.50

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C. Delbos
Laboratoire Sciences des Precedes Ceramiques et de Traitements de Surface, UMR 6638 CNRS-Universite de Limoges, conventionne avec le CEA n° M08

V. Rat
PCTS -CNRS UMR 6638, University of Limoges, 123 av. A. Thomas, 87060 Limoges cedex, France

C. Bonhomme
Laboratoire Sciences des Precedes Ceramiques et de Traitements de Surface, UMR 6638 CNRS-Universite de Limoges, conventionne avec le CEA n° M08

J. Fazilleau
Laboratoire Sciences des Precedes Ceramiques et de Traitements de Surface, UMR 6638 CNRS-Universite de Limoges, conventionne avec le CEA n° M08

J. F. Coudert
Laboratoire Sciences des Procédés Céramiques et Traitements de Surface, UMR-CNRS 6638, Université de Limoges, 87060 Limoges Cedex, France

Pierre Fauchais
Laboratoire Sciences des Procedes Ceramiques et de Traitements de Surface UMR CNRS 6638 University of Limoges 123 avenue Albert Thomas, 87060 LIMOGES - France

Краткое описание

This paper is devoted to the production of finely structured ceramic coatings by Suspension Plasma Spraying (SPS). It mainly consists in injecting in a Direct Current (D.C.) plasma jet a suspension containing submicronic ceramic particles. The presented work is aimed at producing yttria stabilized zirconia (YSZ) electrolytes of Solid Oxide Fuel Cells (SOFC). First, the effect of powder size distributions on the flattening of collected splats is studied. Second, the influence of these powder size distributions on the microstructural features of coatings is highlighted. It is shown that a narrow powder size distribution centred on about 1 μm should be used to produce coatings with a reduced porosity.

ЦИТИРОВАНО В

Etchart-Salas R., Rat V., Coudert J. F., Fauchais P., Caron N., Wittman K., Alexandre S., Influence of Plasma Instabilities in Ceramic Suspension Plasma Spraying, Journal of Thermal Spray Technology, 16, 5-6, 2007. Crossref
Tarasi F., Medraj M., Dolatabadi A., Oberste-Berghaus J., Moreau C., Effective Parameters in Axial Injection Suspension Plasma Spray Process of Alumina-Zirconia Ceramics, Journal of Thermal Spray Technology, 17, 5-6, 2008. Crossref
Arevalo-Quintero O., Waldbillig D., Kesler O., An investigation of the dispersion of YSZ, SDC, and mixtures of YSZ/SDC powders in aqueous suspensions for application in suspension plasma spraying, Surface and Coatings Technology, 205, 21-22, 2011. Crossref

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