High Temperature Material Processes (An International Quarterly of High-Technology Plasma Processes) An International Journal

ISSN for PRINT: 1093-3611

For Online Access

Best Paper Award Selection - Editorial Board Site

2007, Volume11

Issue 2

149 pages

DOI: 10.1615/HighTempMatProc.v11.i2

Issue price - $168.00

Y. Lahmar-Mebdoua
Centre de Développement des Technologies Avancées, Algiers, Algeria

Armelle Vardelle
University of Limoges, Laboratoire Sciences des Procédés Céramiques et de Traitements de Surface, ENSIL,16 rue d'Atlantis, 87068 LIMOGES Cedex, France

Pierre Fauchais
Laboratoire Sciences des Precedes Ceramiques et de Traitements de Surface, UMR 6638 CNRS-Universite de Limoges, faculte des Sciences et Technique, conventionne avec le CEA n° M08, France

Dominique Gobin
Universite Pierre et Marie Curie-Paris 6, Universite Paris-Sud, CNRS, F-91405, Lab FAST, Orsay F-91405, France

The properties of a plasma-sprayed coating are, to a great extent, controlled by the cooling and solidification of the droplets impinging on the part to be covered. Both processes condition the cooling rate, crystal growth and formation of the crystalline phases. This paper presents a one-dimensional heat transfer model that predicts the cooling and solidification of a liquid lamella deposited on a flat surface. It is based on the solution of the time-dependent heat equation in the splat and the substrate coupled by an interface thermal resistance and takes into account the melt undercooling and crystal nucleation. The calculations are performed for alumina lamellae on steel and alumina substrates.

DOI: 10.1615/HighTempMatProc.v11.i2.40 Download article, 191-204 pages

Article price - $35.00

<< Previous article   Next article >>