scholarly journals Scaling law for direct current field emission-driven microscale gas breakdown

2012 ◽  
Vol 19 (12) ◽  
pp. 123515 ◽  
Author(s):  
A. Venkattraman ◽  
A. A. Alexeenko
Keyword(s):  
Field Emission ◽  
Direct Current ◽  
Scaling Law ◽  
Current Field ◽  
Gas Breakdown

scholarly journals Gas breakdown and its scaling law in microgaps with multiple concentric cathode protrusions

2019 ◽  
Vol 114 (1) ◽  
pp. 014102 ◽  
Author(s):  
Yangyang Fu ◽  
Peng Zhang ◽  
Janez Krek ◽  
John P. Verboncoeur
Keyword(s):  
Scaling Law ◽  
Gas Breakdown

Analytic theory for field emission driven microscale gas breakdown for a pin-to-plate geometry

2021 ◽  
Vol 129 (10) ◽  
pp. 103301 ◽  
Author(s):  
Amanda M. Loveless ◽  
Lorin I. Breen ◽  
Allen L. Garner
Keyword(s):  
Field Emission ◽  
Analytic Theory ◽  
Gas Breakdown ◽  
Plate Geometry

Fibrous structures on diamond and carbon surfaces formed by hydrogen plasma under direct-current bias and field electron-emission properties

2003 ◽  
Vol 18 (2) ◽  
pp. 305-326 ◽  
Author(s):  
Koji Kobashi ◽  
Takeshi Tachibana ◽  
Yoshihiro Yokota ◽  
Nobuyuki Kawakami ◽  
Kazushi Hayashi ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Field Emission ◽  
Direct Current ◽  
Electron Emission ◽  
Microwave Plasma ◽  
Hydrogen Plasma ◽  
Polycrystalline Diamond ◽  
Metal Catalyst ◽  
Direct Current Bias ◽  
Conical Structures

Polycrystalline diamond films, single crystal bulk diamonds, and diamond powder were treated in microwave plasma of hydrogen at 1.6 torr under a negative direct-current bias of −150 to −300 V without metal catalyst. It was found that fibrous structures, uniformly elongated along the direction normal to the specimen surface, were formed on the diamond surfaces. Similar experiments for glasslike carbon resulted in conical structures with frizzy fibers at the tops. Transmission electron microscopy measurements indicated that the fibers formed on diamond consisted of randomly oriented diamond nanocrystals with diameters of less than 10 nm, while the conical structures formed on glasslike carbon consisted of graphite nanocrystals. Field emission measurements of the fibrous specimens exhibited better emission efficiency than untreated ones. The field emission electron microscopy of the fibrous glasslike carbon showed a presence of discrete electron emission sites at a density of approximately 10,000 sites/cm2.

scholarly journals Pulsed direct current field-induced thermal stability and phase transformation of nanodiamonds to carbon onions

RSC Advances ◽  
2019 ◽  
Vol 9 (25) ◽  
pp. 14360-14371 ◽  
Author(s):  
Faming Zhang ◽  
Kuowei Fan ◽  
Jin Yu ◽  
Farhad Saba ◽  
Jing Sun
Keyword(s):  
Thermal Stability ◽  
Phase Transformation ◽  
Direct Current ◽  
Current Field ◽  
Detailed Understanding ◽  
Pulsed Dc ◽  
Carbon Onions ◽  
Pulsed Direct Current ◽  
Thermal Stability Of

The pulsed DC field-induced thermal stability of nanodiamonds (NDs) and their transformation to carbon onions lack detailed understanding.

Direct current field induced asymmetrical DC-resistivity degradation in SrTiO3-based grain boundary layer ceramic

2019 ◽  
Vol 45 (10) ◽  
pp. 13546-13550 ◽  
Author(s):  
Fan He ◽  
Ming Lv ◽  
Minghui Lu ◽  
Lin Cao ◽  
Qingran Wang ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Grain Boundary ◽  
Direct Current ◽  
Dc Resistivity ◽  
Current Field
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