Thermal-shock performance of evaporated Al2O3, ZrO2, and laminated cermet coatings in an electric-arc plasma source

1976 ◽  
Vol 31 (3) ◽  
pp. 1040-1043
Author(s):  
V. S. Leshchenko ◽  
V. G. Novikov ◽  
A. V. Petrov ◽  
A. D. Sukhobokov ◽  
E. A. Turkin
Keyword(s):  
Thermal Shock ◽  
Plasma Source ◽  
Electric Arc ◽  
Arc Plasma ◽  
Cermet Coatings

scholarly journals Thermal Plasma of Electric Arc Discharge Between Cu-Cr Composite Electrodes

2019 ◽  
Vol 6 (1) ◽  
pp. 27-30
Author(s):  
A. Veklich ◽  
V. Boretskij ◽  
M. Kleshych ◽  
S. Fesenko ◽  
A. Murmantsev ◽  
...  
Keyword(s):  
Arc Discharge ◽  
Optical Emission ◽  
Plasma Source ◽  
Electric Arc ◽  
Arc Plasma ◽  
Composite Electrodes ◽  
Plasma Parameters ◽  
Gas Atmosphere ◽  
Electric Arc Discharge ◽  
Erosion Properties

This work deals with investigations of model plasma source realised as electric arc discharge in gas atmosphere between Cu-Cr composite electrodes. Radial distributions of temperature and electron density in arc plasma column were studied by optical emission spectroscopy. The content of electrode metals' vapours in discharge was calculated on the base of experimentally obtained plasma parameters as initial data. So, in this way the erosion properties of such composition can be determined.

Plasma parameters in atomic-emission spectral analysis of phosphate concentrates of the fission products

2019 ◽  
Vol 85 (2) ◽  
pp. 17-22
Author(s):  
M. I. Khamdeev ◽  
E. A. Erin
Keyword(s):  
Spectral Analysis ◽  
Chemical Composition ◽  
Reference Materials ◽  
Fission Products ◽  
Atomic Emission ◽  
Electric Arc ◽  
Physical Parameters ◽  
Arc Plasma ◽  
Atomic Emission Spectral Analysis ◽  
Excitation Processes

Physical parameters of electric arc plasma as well as their time dependences are calculated when analyzing phosphate precipitates of the fission products of irradiated nuclear fuel. Phosphate concentrates of the fission products are known for their complex chemical composition and high thermal and chemical stability. Hence, direct atomic emission spectral analysis of phosphate powders without transferring them into solutions is advisable. Different conditions of sample preparation and synthesis of the reference materials determine the different chemical forms of the elements to be determined. This, in turn, affects the kinetics of their evaporation in the electrode crate and excitation processes in the plasma. The known mechanisms of those processes cannot always be transferred to specific conditions of the given method of analysis thus entailing the necessity of studying the effect of the samples chemical composition on the results of determination, proper choice of spectroscopic carriers, detailed study of spectra excitation processes in spectral analysis, and analysis of the physical parameters of the electric arc plasma. We used the lines Zn I 307.206 nm and Zn I 307.589 nm to measure the effective temperature of the central hot sections of the arc in a range of4500 - 6500 K. NaCl, BaCl2 and NaCl + T1C1 were studied to reduce the effect of the sample elemental composition on excitation conditions of the spectra and their stabilization as a spectroscopic carrier. In control experiments we used carrier-free samples. The coincidence of the values of the plasma physical parameters within the measurement error not exceeding 20%, as well as the identity of the nature of the kinetic curves for samples of phosphate precipitates and synthetic reference materials prove their correctness. The result of the study substantiate correctness of the direct atomic-emission spectral procedure in analysis of phosphate concentrates of fission when using synthetic reference materials.

Blown Arc Plasma Source for the Elaboration of Finely Structured Coatings

2009 ◽  
Vol 2 (2) ◽  
pp. 133-149 ◽  
Author(s):  
Vincent Rat ◽  
Jean-Francois Coudert ◽  
Alain Denoirjean ◽  
Ghislain Montavon
Keyword(s):  
Plasma Source ◽  
Arc Plasma

Synthesis and regeneration of catalysts in electric arc plasma

1997 ◽  
Vol 70 (4) ◽  
pp. 605-608
Author(s):  
G. P. Vissokov
Keyword(s):  
Electric Arc ◽  
Arc Plasma

Recent Advances in Electric Arc Plasma Generation Technology

ARS Journal ◽  
1961 ◽  
Vol 31 (1) ◽  
pp. 4-17 ◽  
Author(s):  
RICHARD R. JOHN ◽  
WILLIAM L. BADE
Keyword(s):  
Electric Arc ◽  
Arc Plasma ◽  
Plasma Generation ◽  
Recent Advances ◽  
Generation Technology

Supersonic Argon Flow In An Arc Plasma Source

2006 ◽  
Author(s):  
B. Izrar
Keyword(s):  
Plasma Source ◽  
Arc Plasma ◽  
Argon Flow

scholarly journals Blown Arc Plasma Source for the Elaboration of Finely Structured Coatings

2009 ◽  
Vol 2 (1) ◽  
pp. 133-149
Author(s):  
Vincent Rat ◽  
Jean-François Coudert ◽  
Alain Denoirjean ◽  
Ghislain Montavon
Keyword(s):  
Plasma Source ◽  
Arc Plasma

scholarly journals SPECTROSCOPY PECULIARITIES OF ELECTRIC ARC DISCHARGE PLASMA WITH IRON VAPOURS

2021 ◽  
pp. 171-175
Author(s):  
A. Murmantsev ◽  
A. Veklich ◽  
V. Boretskij
Keyword(s):  
Discharge Plasma ◽  
Arc Discharge ◽  
Line Emission ◽  
Plasma Temperature ◽  
Optical Emission ◽  
Plasma Source ◽  
Electric Arc ◽  
Spectral Lines ◽  
Electric Arc Discharge

This work is devoted to spectroscopy peculiarities of electric arc discharge plasma with iron vapours. The solution of the main issue of optical emission spectroscopy, namely, selection of iron spectral lines, to study the parameters of non-uniform and non-steady-state plasma source, was considered within this paper. Specifically, the Boltzmann plots technique was used for detailed analysing of application possibility of Fe I spectral lines as well as for determination of plasma temperature. The spatial profiles of selected spectral line emission intensities were used to measure the radial distributions of plasma temperature of free-burning arc discharge between consumable electrodes at 3.5 A.

Automatically reigniting dc vacuum arc plasma source

2002 ◽  
Vol 73 (8) ◽  
pp. 2971-2973 ◽  
Author(s):  
Liuhe Li ◽  
Tao Zhang ◽  
Paul K. Chu ◽  
Ian G. Brown
Keyword(s):  
Plasma Source ◽  
Vacuum Arc ◽  
Arc Plasma

Electric Arc Plasma Unit with Controlled Electric Arc for Surface Treatment of Metal Products

2021 ◽  
Author(s):  
Viktor Meshcheryakov ◽  
Vladimir Pikalov ◽  
Stanimir Valtchev
Keyword(s):  
Surface Treatment ◽  
Electric Arc ◽  
Arc Plasma ◽  
Metal Products ◽  
Plasma Unit
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