A Study of the Electroerosive Wear of Surfaces of Accelerating Channels of a Coaxial Magnetoplasma Accelerator

2018 ◽  
Vol 89 (5) ◽  
pp. 340-342 ◽  
Author(s):  
A. A. Sivkov ◽  
D. Yu. Gerasimov
Keyword(s):  
Coaxial Magnetoplasma Accelerator

Dependence of the Product's Phase Composition on the Ratio of Precursors in Plasmadynamic Synthesis of Silicon Carbide

2018 ◽  
Vol 769 ◽  
pp. 114-119 ◽  
Author(s):  
Artur A. Sivkov ◽  
Artur Nassyrbayev ◽  
Maksim Gukov
Keyword(s):  
Electron Microscopy ◽  
Silicon Carbide ◽  
Synthesis Method ◽  
X Ray Diffraction ◽  
Central Electrode ◽  
X Ray ◽  
Transmission Electron ◽  
Cubic Silicon Carbide ◽  
Accelerator Channel ◽  
Coaxial Magnetoplasma Accelerator

In this work, the powder of nanoscale cubic SiC was obtained by the plasmodynamic synthesis in a coaxial magnetoplasma accelerator (CMPA) with a graphite central electrode and an accelerator channel. The synthesis method allows obtaining a product with a high content of nanoscale cubic silicon carbide. The work is aimed to study the influence of the precursor’s ratio on the product. The synthesized products were analyzed by X-ray diffraction and transmission electron microscopy.

scholarly journals The Development of the Graphite Barrel of the Coaxial Magnetoplasma Accelerator

2015 ◽  
Vol 37 ◽  
pp. 01049
Author(s):  
Ksenia Shatrova ◽  
Alexander Pak ◽  
Elvira Sokolova
Keyword(s):  
Coaxial Magnetoplasma Accelerator

scholarly journals Синтез нанокристаллического диборида титана в гиперскоростной плазменной струе

2018 ◽  
Vol 44 (7) ◽  
pp. 61
Author(s):  
А.А. Сивков ◽  
Д.Ю. Герасимов ◽  
Д.С. Никитин
Keyword(s):  
Titanium Diboride ◽  
Experimental Investigations ◽  
High Current ◽  
Nanocrystalline Titanium ◽  
Coaxial Magnetoplasma Accelerator

AbstractResults of experimental investigations of directly synthesizing nanocrystalline titanium diboride in a hypervelocity jet of electrodischarge plasma generated by a pulse high-current coaxial magnetoplasma accelerator with titanium electrodes are presented. The main result of the investigations is manufacturing a product with a mass of up to ∼3 g containing more than 90% of titanium diboride obtained mostly in the form of hexagonal and dodecagonal particles.

Effect of Energy on Plasmodynamic Synthesis Product in the Carbon-Nitrogen System

2014 ◽  
Vol 880 ◽  
pp. 36-41 ◽  
Author(s):  
Alexander Sivkov ◽  
Alexander Y. Pak ◽  
Ivan Shanenkov ◽  
Yuliya Shanenkova ◽  
Igor P. Prosvirin
Keyword(s):  
Energy Storage ◽  
High Speed ◽  
Carbon Nitride ◽  
Discharge Plasma ◽  
Nitrogen Atmosphere ◽  
Synthesis Product ◽  
Capacitive Energy Storage ◽  
Energy Value ◽  
Good Accordance ◽  
Coaxial Magnetoplasma Accelerator

Carbon nitride (CNx) powders were synthesized in the high-speed carbon electric discharge plasma jet flowing into the chamber filled with the nitrogen atmosphere at normal conditions. A coaxial magnetoplasma accelerator (CMPA) was used to generate the plasma flow. The CMPA was supplied from the pulse capacitive energy storage. Effect of input to the CMPA energy value on powders was studied by using several analytical methods (XRD, TEM, XPS). According to XRD with the increasing of input energy value the content of CNx in the product increased about 1.5 times. Its in a good accordance with the XPS data according to which the presence of nitrogen increased from 0.5 to 1.4 mass percent. Furthermore, the particles morphology was noticeable changed with the energy increasing. The obtained results revealed that by changing the energy parameters of the capacity energy storage its possible to influence on the product synthesized in the carbon-nitrogen system.

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