PRODUCTION OF COATINGS FROM POWDER MATERIALS WITH THE USE OF A SHORT ARGON ARC. 2. HEAT FLUX FROM THE PLASMA TO A MACROPARTICLEI. P. Smyaglikov, V. D. Shimanovich, and Yu. V. Khodyko UDC 533.9:537.525.5 The heat flux to a metal particle in the plasma of a short argon arc of atmospheric pressure in depositing metallurgical coatings has been calculated. The limiting approximations of a continuum and free-molecular flow yield comparable results (about 6*108W/m2. The radiant-flux density has been evaluated. It has been shown that the heating of macroparticles is determined mainly by the conductive mechanism of energy transfer. Institute of Molecular and Atomic Physics, National Academy of Sciences of Belarus, Minsk, Belarus; email: email@example.com. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 76, No. 1, pp. 89-92, January-February, 2003. Original article submitted June 13, 2002.