Spark Discharge Action on a Cathode Surface in Air Atmosphere

1987 ◽  
Vol 27 (6) ◽  
pp. 469-477 ◽  
Author(s):  
I. Apostol ◽  
I. N. Mihailescu ◽  
A. L. Popa ◽  
R. Buteikis ◽  
J. Oberauskas ◽  
...  
Keyword(s):  
Cathode Surface ◽  
Spark Discharge ◽  
Air Atmosphere

Synthesis of Titania Nanoparticles via Spark Discharge Method Using Air as a Carrier

2007 ◽  
Vol 544-545 ◽  
pp. 143-146 ◽  
Author(s):  
Hyun Cheol Oh ◽  
Jun Ho Ji ◽  
Jae Hee Jung ◽  
Sang Soo Kim
Keyword(s):  
Primary Particle ◽  
Spark Discharge ◽  
Titania Nanoparticles ◽  
Particle Sizes ◽  
Discharge System ◽  
Carrier Gas ◽  
Air Atmosphere ◽  
Aerosol Generator ◽  
Discharge Method ◽  
Pulsed Spark Discharge

A pulsed spark-discharge aerosol generator using air as a carrier gas was successfully applied to the titania nanoparticle production. The titanium vapor evaporated by spark discharge was subsequently supersaturated and condensed to titania nanoparticles by nucleation and condensation. The size and concentration of the particles can be controlled easily using air as a carrier gas by altering the repetition frequency, capacitance, gap distance, and flow rate of the spark-discharge system. TEM observation shows that the generated particles were aggregates, which primary particle sizes are a few nanometers. The element composition of the nanoparticles was titanium and the crystal phase was amorphous. XPS analysis shows that oxidation state of generated particles corresponded to TiO2. These XPS data indicates that some fraction of the evaporated titanium vapor could be oxidized in an air atmosphere by the oxidation with oxygen. However, enough time for crystallization was lacked because of raid cooling.

scholarly journals Research on the influence of cathode surface topography on spark discharge

AIP Advances ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 115312
Author(s):  
Dangshu Wang ◽  
Jiaan Yi ◽  
Jianan Lou ◽  
Xuan Deng ◽  
Shulin Liu ◽  
...  
Keyword(s):  
Surface Topography ◽  
Cathode Surface ◽  
Spark Discharge

Spark Discharge over the Solid Dielectric Surface in Vacuum

2018 ◽  
Vol 7 (7) ◽  
pp. 31-36
Author(s):  
Vyacheslav I. ASYUNIN ◽  
◽  
Sergei G. DAVYDOV ◽  
Alexander N. DOLGOV ◽  
Andrei V. KORNEYEV ◽  
...  
Keyword(s):  
Dielectric Surface ◽  
Spark Discharge ◽  
Solid Dielectric

ON THE MECHANISMS OF POROUS SILICON COMBUSTION IN OXYGEN AND AIR ATMOSPHERE WHEN SODIUM PERCHLORATE IS INCORPORATED IN PORES

2020 ◽  
Author(s):  
V. N. MIRONOV ◽  
◽  
O. G. PENYAZKOV ◽  
P. N. KRIVOSHEYEV ◽  
I. A. IVANOV ◽  
...  
Keyword(s):  
Porous Silicon ◽  
Porous Layer ◽  
Sodium Perchlorate ◽  
Spark Ignition ◽  
Joule Heat ◽  
Air Atmosphere ◽  
Breakdown Region ◽  
Ignition And Combustion ◽  
Heating Up

The processes of pSi ignition and combustion in oxygen are described. When spark ignition in the porous layer releases the Joule heat, it leads to a significant heating-up of the breakdown region.

Regularities of Structural and Morphological Changes of Nanosystems Based on Zn Conden-sates at their Oxidation in Air Atmosphere

2018 ◽  
Vol 10 (1) ◽  
pp. 01021-1-01021-5 ◽  
Author(s):  
A. S. Kornyushchenko ◽  
◽  
Yu. A. Rybalko ◽  
V. I. Perekrestov ◽  
◽  
...  
Keyword(s):  
Morphological Changes ◽  
Air Atmosphere ◽  
Oxidation In Air
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