Progress in Plasma Processing of Materials, 2003

ISBN Print: 978-1-56700-192-1

ISBN Online: 978-1-56700-447-2

STUDY OF THE INJECTION OF A ZIRCONIA SUSPENSION IN A D.C PLASMA JET

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DOI: 10.1615/ITPPC-2002.650
pages 523-533

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

C. Delbos 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

L. Bianchi Commissariat a L'Energie Atomique, Le Ripault, B.P. 16, 37260 MONTS, FRANCE

Abstract

A new thermal spray process is under development in order to produce thin coatings (thickness lower than 50 µm), with a fine microstructure (grain size smaller than 1 µm). This process consists in injecting in a Direct Current (D.C.) plasma jet a suspension containing submicronic particles of the material to be deposited. To study the interaction between plasma and suspension, a system based on a pendulum allows collecting particles at different distances from the injection point. In a previous study with an alumina suspension, it was shown that at short distances splats could be observed and at long distances only spheroidized particles were collected. In this paper, the injection of a zirconia suspension is studied.

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