Structure and Microporosity of Ion-Plasma Condensed Coatings Deposited from a Two-Phase Vacuum-Arc Discharge Plasma Flow Containing Evaporated Material Microdroplets

2019 ◽  
Vol 2019 (1) ◽  
pp. 52-62
Author(s):  
S. A. Muboyadzhyan ◽  
S. A. Budinovskii ◽  
D. S. Gorlov ◽  
O. N. Doronin
2018 ◽  
Vol 1115 ◽  
pp. 032049
Author(s):  
A Pesin ◽  
D Pustovoytov ◽  
R Vafin ◽  
E L Vardanyan ◽  
A Asylbaev ◽  
...  

2019 ◽  
Vol 1393 ◽  
pp. 012015 ◽  
Author(s):  
P A Morozov ◽  
I F Punanov ◽  
R V Emlin ◽  
I L Muziukin ◽  
S A Chaikovsky ◽  
...  

2017 ◽  
Vol 6 (3) ◽  
pp. 284-288 ◽  
Author(s):  
Valentin Ye. Panarin ◽  
Nikolay Ye. Svavil’ny ◽  
Anastasiya I. Khominich

2001 ◽  
Vol 46 (5) ◽  
pp. 307-309 ◽  
Author(s):  
G. Yu. Yushkov ◽  
A. S. Bugaev ◽  
I. A. Krinberg ◽  
E. M. Oks

2021 ◽  
Vol 2124 (1) ◽  
pp. 012025
Author(s):  
V S Vashchilin ◽  
E V Krivinozhko ◽  
L S Sabitov ◽  
S V Trukhanov ◽  
L KH-A Saipova

Abstract Titanium oxide coatings were obtained by magnetron sputtering on a glass substrate with different oxygen fraction in the plasma. Studies were carried out by scanning electron microscopy of the obtained coating samples establishing the role of oxygen in the process of crystallization of TiOx-coatings. It was found that with increasing the oxygen fraction in the vacuum arc discharge plasma the crystal grain size increases, the time of coating on the substrate increases, and the crystal layer has a columnar structure. The presence of amorphous and crystalline phase for all coating samples was revealed, with the predominance of the former. On the surface microphotographs of the coatings microcraters were found, on the surface of the samples obtained at the concentration of O2 in the plasma 14% of their concentration is maximum, this can be explained by changes in the state of the plasma, starting to occur at this concentration of reaction gas. Vacuum photonic annealing of the obtained coatings was performed. Vacuum radiation annealing in the furnace led to modification of coatings: sintering of coatings, increase of their crystallinity. An increase in crystallite size in a sample with an oxygen fraction of 12% was detected.


2021 ◽  
Vol 2064 (1) ◽  
pp. 012005
Author(s):  
A S Zhigalin ◽  
A G Rousskikh ◽  
V I Oreshkin ◽  
A P Artyomov

Abstract In this work, we present experimental results on measuring the velocity of vacuum arc discharge plasma expansion. In the experiments, two designs of plasma guns were used. In the first version, the end of the arc discharge cathode was located below the plane of the anode, and the surface of the insulator separating them was parallel to the axis of symmetry of the plasma gun. In this design, the arc discharge plasma escapes the anode through a hole, the diameter of which coincides with the diameter of the cathode. In the second variant, the plane of the end face of the arc discharge cathode coincided with the plane of the anode, and the surface of the insulator separating them was located perpendicular to the axis of symmetry of the plasma gun. To obtain an image of plasma in the optical range, an FER-7 optical streak camera was used. Based on the results obtained, it can be concluded that the expansion velocity of the plasma of a high-current vacuum arc discharge does not depend on the design of the guns considered in this experiment.


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