Cathode Plasma Jet Pinching and Intense X-Ray Emission in a Moderate-Current Laser-Triggered Vacuum Discharge

2006 ◽  
Vol 34 (5) ◽  
pp. 2419-2425 ◽  
Author(s):  
A. Moorti ◽  
B.S. Rao ◽  
P.A. Naik ◽  
P.D. Gupta ◽  
I.V. Romanov ◽  
...  
Keyword(s):  
Plasma Jet ◽  
Vacuum Discharge ◽  
Cathode Plasma ◽  
X Ray

Formation of a cathode plasma jet in a laser-induced vacuum discharge

2016 ◽  
Vol 42 (2) ◽  
pp. 160-163 ◽  
Author(s):  
I. V. Romanov ◽  
V. L. Paperny ◽  
Yu. V. Korobkin ◽  
V. A. Podvyaznikov ◽  
A. A. Rupasov ◽  
...  
Keyword(s):  
Plasma Jet ◽  
Vacuum Discharge ◽  
Cathode Plasma

scholarly journals Time resolved x-ray emission from nanosecond vacuum discharge with virtual cathode

2019 ◽  
Vol 1147 ◽  
pp. 012081
Author(s):  
A V Oginov ◽  
Yu K Kurilenkov ◽  
I S Samoylov ◽  
K V Shpakov ◽  
A A Rodionov ◽  
...  
Keyword(s):  
Virtual Cathode ◽  
Vacuum Discharge ◽  
Time Resolved ◽  
X Ray

Generation characteristics of a metal ion plasma jet in vacuum discharge

2018 ◽  
Vol 20 (8) ◽  
pp. 085403 ◽  
Author(s):  
Jia TIAN ◽  
Wenzheng LIU ◽  
Weisheng CUI ◽  
Yongjie GAO
Keyword(s):  
Metal Ion ◽  
Plasma Jet ◽  
Vacuum Discharge ◽  
Ion Plasma

scholarly journals Optical and structural study for DLC thin films prepared by plasma jet

2019 ◽  
Vol 17 (40) ◽  
pp. 50-58
Author(s):  
S. J. Kadhem
Keyword(s):  
Thin Films ◽  
High Voltage ◽  
Plasma Torch ◽  
Energy Gap ◽  
Plasma Jet ◽  
Optical Energy Gap ◽  
X Ray ◽  
Xrd Diffraction ◽  
Fourier Transformation Infrared Spectroscopy ◽  
Uv Visible

Diamond-like carbon (DLC) homogeneous thin films were deposited from cyclohexane (Ccyclohexane (Ccyclohexane (Ccyclohexane (C cyclohexane (Ccyclohexane (Ccyclohexane (C cyclohexane (Ccyclohexane (C 6H12 ) liquid by using a plasma jet system which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5 which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5which operates with alternating high voltage 7.5 kv and kv and kv and kv and frequency 28 frequency 28frequency 28 frequency 28frequency 28frequency 28frequency 28frequency 28 kHz. kHz. The optical and structural properties and chemical bonding of these films were investigated. In this work, the effect of changing the distance between the substrate and the plasma torch (2, 2.5 and 3 cm) was studied. The flow rate of argon gas which used to generate the plasma was fixed (0.5 L/min). These films were characterized by UV–Visible spectrophotometer, X-ray diffractometer (XRD) and scanning electron microscopy (SEM) and Fourier transformation infrared spectroscopy (FTIR). The maximum absorption (λmax) appears around 312, 298.3 and 293.2 nm at the three distance between plasma torch and the substrate 2.5, 2 and 3 cm, respectively. The values of the optical energy gap are 3.47, 3.65 and 3.76 eV at a different distance (2, 2.5 and 3cm), respectively. In XRD diffraction pattern, The occurrence of diamond peaks and graphite peaks in the x-ray spectrum for these films Indicates that there is an occurrence of local ordered sp3 and sp2 for carbon domains and graphite respectively.

Formation of ultrafine powders of binary alloy systems by plasma jet

1998 ◽  
Vol 13 (6) ◽  
pp. 1511-1516 ◽  
Author(s):  
M. Umemoto ◽  
M. Udaka ◽  
K. Kawasaki ◽  
X. D. Liu
Keyword(s):  
Electron Microscope ◽  
Binary Alloy ◽  
Transmission Electron Microscope ◽  
Ultrafine Particles ◽  
Plasma Jet ◽  
New Method ◽  
Ultrafine Powders ◽  
X Ray Diffraction ◽  
X Ray ◽  
Transmission Electron

Recently, a new method, i.e., a plasma jet method, was developed in our lab for the production of ultrafine powders. In the present work, we investigated the formation of binary Al–Fe, Al–Si, Fe–Si, Al–Cu, Al–Ni, Ni–Ti, Fe–Cu, and Fe–Ti ultrafine powders using this method. Premixed pure elemental powders of various compositions of Al–Fe, Al–Si, Fe–Si, Al–Cu, Al–Ni, Ni–Ti, Fe–Cu, and Fe–Ti were used as starting materials. These premixed powders were injected into the plasma jet of Ar–N2 working gas to form ultrafine powders. The obtained ultrafine powders were characterized by x-ray diffraction and transmission electron microscope to check the microstructures of ultrafine particles.

Self-Lubricating Composite Coating on Air Foil Bearing Shaft by Hollow Cathode Plasma Jet

2005 ◽  
Vol 486-487 ◽  
pp. 157-160
Author(s):  
Min Kyu Yang ◽  
Hyu Seung Yang ◽  
Jong Ku Park ◽  
Keun Ryu ◽  
Yong Bok Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Hollow Cathode ◽  
Composite Films ◽  
Plasma Jet ◽  
Solid Lubricants ◽  
The Self ◽  
Cathode Plasma ◽  
Alloy Matrix ◽  
Foil Bearing ◽  
Planar Magnetron

The self-lubricating composite films were deposited on Inconel 718 by Hollow Cathode Plasma Jet (HCPJ). These composite materials consist of chrome nickel alloy matrix and Ag, BaF2/CaF2 solid lubricants. The Cr2O3-NiCr-Ag composite thin film was crystallized and had the main peaks of Cr2O3 (012) and Ag (111). The deposition rate of 200 nm /min by HCPJ was much faster than the ordinary R.F planar magnetron sputtering. The surface roughness of coated shaft was 30 nm.

Sign in / Sign up

Export Citation Format

Share Document