J Mater Sci Technol ›› 2003, Vol. 19 ›› Issue (Supl.): 49-52.

• Research Articles • Previous Articles     Next Articles

Melting, Oxidation, Evaporation of Particle in-Flight in Plasma Spray Processes

H.B.Xiong, L.L.Zheng   

  1. Department of Mechanical Engineering, State University of New York at Stony Brook, Stony Brook, NY 11794-2300, USA
  • Received:1900-01-01 Revised:1900-01-01 Online:2003-12-28 Published:2009-10-10
  • Contact: L.L.Zheng

Abstract: A comprehensive numerical model has been developed to investigate the transient behaviors of particle characteristics, such as temperature, melting, evaporation, and oxidation status during argon-hydrogen DC plasma spraying. This model includes heat, momentum and mass transfer of carrier gas, and particle heating, melting, evaporation and oxidation. Special attentions have been paid to the evaporation-induced mass transfer and oxidation-induced evaporation as well as variable non-continuum phenomena.

Key words: Melting, Oxidation, Materials processing, Multi-components reacting flow