Controlling particle injection in plasma spraying

Journal of Thermal Spray Technology - Tập 10 - Trang 267-284 - 2001
M. Vardelle1, P. Fauchais1, A. Vardelle2, K. -I. Li3, B. Dussoubs4, N. J. Themelis5
1Laboratory “Sciences des Procédés Céramiques et de Traitements de Surface”, University of Limoges, Limoges Cedex, France
2Laboratory “Sciences des Procédés Céramiques et de Traitements de Surface”, ENSIL, Limoges Cedex, France
3MADYLAM, Saint Martin d’Hères Cedex, France
4Ecole Nationale Supérieure des Mines de Nancy - LSG2M, NANCY Cedex, France
5Earth Engineering Center, Columbia University, New York

Tóm tắt

This paper reviews experimental and analytical techniques that examine the efficiency of systems for the injection of powders in plasma jets used in spray coating. The types of injectors, the experimental techniques for observing particle trajectories and distributions, and the mathematical models used to investigate the momentum and heat-transfer phenomena between particles, carrier gas, and plasma jet are described. Experimental data are presented from numerous examples from the plasma spraying of ceramic powders.

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