PRODUCTION OF COATINGS FROM POWDER MATERIALS 
WITH THE USE OF A SHORT ARGON ARC.
1. EXPERIMENTAL STUDY OF PLASMA HEATING OF MACROPARTICLES

V. D. Shimanovich, I. P. Smyaglikov, and A. I. Zolotovskii

UDC 533.9:537.523.5

Consideration is given to the processes of acceleration 
and heating of metallic particles in the device proposed by the authors 
for deposition of metallurgical coatings with the use of a short argon 
arc. The coatings produced are compared to those deposited by the 
traditional method of plasma spraying. Results of spectroscopic determinations 
of the temperature fields of the arc are given. The heat-flux density 
and the temperature of macroparticles are evaluated by the parameters 
of their destruction in the plasma found experimentally. The high 
efficiency of the technology proposed for heating of metallic powders, 
including high-melting ones, is shown.

Institute of Molecular and Atomic Physics, National Academy 
of Sciences of Belarus, Minsk, Belarus; email: shimanov@imaph.bas-net.by. 
Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 75, No. 6, pp. 
8-13, November-December, 2002. Original article submitted 
April 19, 2002.

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