Prediction of Nonequilibrium Air Plasma Radiation Behind a Shock Wave

2016 ◽  
Vol 30 (1) ◽  
pp. 197-210 ◽  
Author(s):  
A. Lemal ◽  
C. M. Jacobs ◽  
M.-Y. Perrin ◽  
C. O. Laux ◽  
P. Tran ◽  
...  
Keyword(s):  
Shock Wave ◽  
Plasma Radiation ◽  
Air Plasma

Experimental study and modeling of infrared air plasma radiation

1995 ◽  
Author(s):  
Christophe Laux ◽  
Richard Gessman ◽  
Benoit Hilbert ◽  
Charles Kruger
Keyword(s):  
Experimental Study ◽  
Plasma Radiation ◽  
Air Plasma

Argon Plasma Radiation Features at the Initial Stage behind a Shock Wave Front

2021 ◽  
Vol 15 (1) ◽  
pp. 56-62
Author(s):  
V. Yu. Levashov ◽  
P. V. Kozlov ◽  
N. G. Bykova ◽  
I. E. Zabelinskii
Keyword(s):  
Shock Wave ◽  
Wave Front ◽  
Shock Wave Front ◽  
Argon Plasma ◽  
Plasma Radiation ◽  
Initial Stage

Narrow-band model for nonequilibrium air plasma radiation

2010 ◽  
Vol 111 (1) ◽  
pp. 87-104 ◽  
Author(s):  
Jean-Michel Lamet ◽  
Philippe Rivière ◽  
Marie-Yvonne Perrin ◽  
Anouar Soufiani
Keyword(s):  
Narrow Band ◽  
Plasma Radiation ◽  
Band Model ◽  
Air Plasma ◽  
Narrow Band Model

scholarly journals Air Plasma Mitigation of Shock Wave

2016 ◽  
Vol 01 (02) ◽  
pp. 59-69 ◽  
Author(s):  
Spencer P. Kuo
Keyword(s):  
Shock Wave ◽  
Air Plasma

A new type of defect structure in 124-superconducting oxide revealed by HREM

1991 ◽  
Vol 49 ◽  
pp. 1092-1093
Author(s):  
R. Sharma ◽  
B.L. Ramakrishna ◽  
N.N. Thadhani ◽  
D. Hianes ◽  
Z. Iqbal
Keyword(s):  
Shock Wave ◽  
Defect Structure ◽  
Neutron Radiation ◽  
Weak Links ◽  
Defect Structures ◽  
New Materials ◽  
New Type ◽  
Current Densities ◽  
Processing Techniques ◽  
Microstructural Studies

After materials with superconducting temperatures higher than liquid nitrogen have been prepared, more emphasis has been on increasing the current densities (Jc) of high Tc superconductors than finding new materials with higher transition temperatures. Different processing techniques i.e thin films, shock wave processing, neutron radiation etc. have been applied in order to increase Jc. Microstructural studies of compounds thus prepared have shown either a decrease in gram boundaries that act as weak-links or increase in defect structure that act as flux-pinning centers. We have studied shock wave synthesized Tl-Ba-Cu-O and shock wave processed Y-123 superconductors with somewhat different properties compared to those prepared by solid-state reaction. Here we report the defect structures observed in the shock-processed Y-124 superconductors.

Investigation of shock-wave deformation history from recovered structure

1986 ◽  
Vol 44 ◽  
pp. 434-435
Author(s):  
M.A. Mogilevsky ◽  
L.S. Bushnev
Keyword(s):  
Shock Wave ◽  
Plastic Deformation ◽  
Dislocation Density ◽  
Shock Waves ◽  
Shock Front ◽  
Single Crystals ◽  
Residual Deformation ◽  
Deformation Structure ◽  
Deformation History ◽  
Deformation Velocity

Single crystals of Al were loaded by 15 to 40 GPa shock waves at 77 K with a pulse duration of 1.0 to 0.5 μs and a residual deformation of ∼1%. The analysis of deformation structure peculiarities allows the deformation history to be re-established.After a 20 to 40 GPa loading the dislocation density in the recovered samples was about 1010 cm-2. By measuring the thickness of the 40 GPa shock front in Al, a plastic deformation velocity of 1.07 x 108 s-1 is obtained, from where the moving dislocation density at the front is 7 x 1010 cm-2. A very small part of dislocations moves during the whole time of compression, i.e. a total dislocation density at the front must be in excess of this value by one or two orders. Consequently, due to extremely high stresses, at the front there exists a very unstable structure which is rearranged later with a noticeable decrease in dislocation density.

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