Investigation of the processes in torches for high-speed gas-plasma spraying of powder materials with the use of the flow-rate method of action on the flow

The comparative characteristic of torches with geometric and flow-rate methods of control of the characteristics of a two-phase flow are given. Based on the mathematical model proposed, the advantage of the flow-rate method is shown by calculation. By using particular examples, the estimates of the...

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Veröffentlicht in:	Journal of engineering physics and thermophysics 2001-11, Vol.74 (6), p.1566-1574
Hauptverfasser:	TIMOSHENKO, V. I, BELOTSERKOVETS, I. S, GALINSKII, V. P, KADYROV, V. Kh, KISEL', V. M, EVDOKIMENKO, Yu. I
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Mathematical models Methods of deposition of films and coatings film growth and epitaxy Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges Plasma Plasma devices Plasma torches Spray coating techniques
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Zusammenfassung:	The comparative characteristic of torches with geometric and flow-rate methods of control of the characteristics of a two-phase flow are given. Based on the mathematical model proposed, the advantage of the flow-rate method is shown by calculation. By using particular examples, the estimates of the optimum values are given for the relation of the flow rates in feeding units and for the length of the heating portion for torches with a flow-rate method of control of the two-phase flow.[PUBLICATION ABSTRACT]
ISSN:	1062-0125 1573-871X
DOI:	10.1023/A:1013933407680