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Modelling and Measurements of Particle in‐flight Characteristics of Atmospheric Plasma Sprayed Yttria Stabilised Zirconia
Author(s) -
NYLEN PER,
BOLOT RODOLPHE,
HANSBO ANITA,
CODDET CHRISTIAN
Publication year - 1999
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1999.tb08771.x
Subject(s) - particle (ecology) , turbulence , materials science , plasma , yttria stabilized zirconia , jet (fluid) , mechanics , particle size , cubic zirconia , computational physics , chemistry , physics , composite material , ceramic , nuclear physics , oceanography , geology
Stabilised ZrO 2 particle in flight characteristics in an Ar‐H 2 atmospheric plasma jet have been studied using analytical and experimental techniques. A commercial code was used to simulate the plasma flow. A standard k ‐ɛ turbulence model was used. Powder particle velocity, temperature history and trajectory were calculated using a stochastic discrete particle model and compared with measurements. A good correlation was found between predictions and measurements. Relationships between the sprayed particle velocity, temperature and size were investigated and a clear correlation was found. The method presented here seems to be a powerful and cost‐effective tool, which could be used to optimise spray parameters off‐line.