IN-FLIGHT PARTICLE DIAGNOSTICS IN INDUCTION PLASMA PROCESSING

被引：10
|
作者：
COULOMBE, S [1 ]
BOULOS, MI [1 ]
机构：
[1] UNIV SHERBROOKE,PLASMA TECHNOL RES CTR,DEPT CHEM ENGN,SHERBROOKE,PQ J1K 2R1,CANADA
来源：
PLASMA CHEMISTRY AND PLASMA PROCESSING | 1995年 / 15卷 / 04期
关键词：
PLASMA SPRAYING; INDUCTION PLASMA; PARTICLE DIAGNOSTICS; PARTICLE SURFACE TEMPERATURE AND VELOCITY; 2-COLOR PYROMETRY; PARTICLE TIME-OF-FLIGHT TECHNIQUE; LASER DOPPLER ANEMOMETRY;
D O I：
10.1007/BF01447065
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A laser Doppler anemometer combined with a particle-emission spectrometer, are used for the study of the induction plasma spraying process. For this, the effects of chamber pressure, spray distance and torch nozzle design on the particle surface temperature and velocity as well as the fraction of hot particles included in the stream of processed material, were investigated. A comparison between the velocity measurements by laser Doppler anemometry (LDA) and by the particle time-of-flight technique is presented in order to emphasize the difference between the velocity of the hot particles, and that of the total particle population, cold and hot. The influence of the individual particle mass on particle entrainment in the plasma jet from the ambient atmosphere in the vacuum chamber is discussed.
引用
收藏
页码：653 / 675
页数：23
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