Effects on compression-flux parameters from discharge characteristics in a compact magnetoplasma compressor

Асташинский, В. М.; Bakanovich, G. I.; Kostyukevich, E. A.; Кузьмицкий, А. М.; Man'kovskii, A. A.; Min'ko, L. Ya.

doi:10.1007/bf00659993

Cited by 5 publications

(17 citation statements)

References 1 publication

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“…It has been found that a phase shift exists between the discharge current and voltage signals (time interval between two vertical dashed lines in figure 2). It verifies the absence of the discharge breakdown along the insulator surface [21]. This can be regarded as a proof that the MPC discharge device works properly and, consequently, the CPF is formed successfully.…”

Section: Electrical and Energy Discharge Parameterssupporting

confidence: 61%

“…A specially shaped insulator is positioned between the anode rod carrier and the cathode to avoid the discharge breakdown on the surface of the insulator. It also diminishes the level of impurities in the plasma [21]. The insulator quality and its shape together with sufficient distance between the carrier and the cathode enabled necessary stability of the ionization zone, i.e.…”

Section: Methodsmentioning

confidence: 99%

“…As a result the compression plasma flow is created from the top of the cathode. The phase shift is proportional to the inductance of the produced plasma ( [21] and references therein). In the case of breakdown along the insulator, the inductance of plasma system is approaching to zero, and the phase shift does not exist.…”

Section: Electrical and Energy Discharge Parametersmentioning

confidence: 99%

“…Several papers have been devoted to the study of different MPC characteristics [4,[21][22][23][24]. The aim of this work is to enlarge the knowledge about MPC operation in different gases and to develop methods of controlling the plasma flow parameters.…”

Section: Introductionmentioning

confidence: 99%

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Optimization of plasma flow parameters of the magnetoplasma compressor

Dojčinović

Kuraica

Obradovć

et al. 2006

Plasma Sources Sci. Technol.

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Optimization of the working conditions of the magnetoplasma compressor (MPC) has been performed through analysing discharge and compression plasma flow parameters in hydrogen, nitrogen and argon at different pressures. Energy conversion rate, volt-ampere curve exponent and plasma flow velocities have been studied to optimize the efficiency of energy transfer from the supply source to the plasma. It has been found that the most effective energy transfer from the supply to the plasma is in hydrogen as a working gas at 1000 Pa pressure. It was found that the accelerating regime exists for hydrogen up to 3000 Pa pressures, in nitrogen up to 2000 Pa and in argon up to 1000 Pa pressure. At higher pressures MPC in all the gases works in the decelerating regime. At pressures lower than 200 Pa, high cathode erosion is observed. MPC plasma flow parameter optimization is very important because this plasma accelerating system may be of special interest for solid surface modification and other technology applications.

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Section: Electrical and Energy Discharge Parameterssupporting

confidence: 61%

Section: Methodsmentioning

confidence: 99%

Section: Electrical and Energy Discharge Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimization of plasma flow parameters of the magnetoplasma compressor

Dojčinović

Kuraica

Obradovć

et al. 2006

Plasma Sources Sci. Technol.

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“…A magneto-plasma compressor (MPC) is a quasi-stationary plasma accelerator capable of producing a supersonic compressed plasma flow (CPF) with minimized electrode erosion [1,2]. In comparison with other available sources of high-energy plasma pulses, MPC generates plasma flows whose steady state duration is much longer than the flight time of plasma in the acceleration channel.…”

Section: Introductionmentioning

confidence: 99%

Effect of Compressed Plasma Flow on Tantalum-Titanium Thin Layer Deposited on Silicon Substrate

Sari¹

2014

IJMSA

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Abstract:The interaction of a dense compressed nitrogen plasma flow with a system of Ta-Ti layers on a silicon substrate has been investigated. This plasma flow was generated in a quasi-stationary pulsed plasma accelerator that can provide a supersonic high energy plasma flux. The plasma pulse duration, discharge current, concentration, and energy densities absorbed by the target were 100 µs, 80 kA, 10 18 cm −3 , and 3-13 J/cm 2 respectively. The samples were exposed to a single plasma pulseor to a series of pulses and were characterized by scanning electron microscopy, X-ray diffraction, and energy dispersive X-ray analyses. The result showed that the changes in the elemental and structure phase compositions depends on energy and number of plasma pulses. Formation of Ti 5 Si 3 and Ta 2 N, are the main results of the current research.

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