1984
DOI: 10.1109/tps.1984.4316319
|View full text |Cite
|
Sign up to set email alerts
|

Current Density Per Cathode Spot in Vacuum Arcs

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4

Citation Types

0
9
0

Year Published

1987
1987
2020
2020

Publication Types

Select...
5
2

Relationship

0
7

Authors

Journals

citations
Cited by 29 publications
(9 citation statements)
references
References 17 publications
0
9
0
Order By: Relevance
“…Therefore there is no agreement in the literature about basic quantities. The suggested data on the current density j range from lo9 Am-* (Rakhovsky 1976) to 10L2Am-' (Daalder 1978, Hantzsche andJiittner 1985). For arcs in air, Drouet and Gruber (1976) even suggested 1014Am-*.…”
Section: Introductionmentioning
confidence: 99%
See 2 more Smart Citations
“…Therefore there is no agreement in the literature about basic quantities. The suggested data on the current density j range from lo9 Am-* (Rakhovsky 1976) to 10L2Am-' (Daalder 1978, Hantzsche andJiittner 1985). For arcs in air, Drouet and Gruber (1976) even suggested 1014Am-*.…”
Section: Introductionmentioning
confidence: 99%
“…For arcs in air, Drouet and Gruber (1976) even suggested 1014Am-*. The spot plasma density n, is uncertain, ranging from 1023m-3 (Rakhovsky 1976) to 102' m-3 (Jiittner 1985). The spot electron temperature T. has been given values of 1-2 eV (Rakhovsky 1976) and &5 eV (Hantzsche 1988).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Due to the important application of vacuum arc in various fields, researchers at home and abroad have conducted much research on the basic theory of cathode spots, such as the type of cathode spot, internal structure, life, emission mechanism, and characteristics under different magnetic fields. In general, the basic characteristics of the cathode spot include the splitting and extinction current of the cathode spot, the cathode spot plasma jet, the cathode spot life, and the motion characteristics of the cathode spot . The magnetic field has a significant effect on these characteristics of the cathode spot.…”
Section: Introductionmentioning
confidence: 99%
“…Consequently voltage drops of less than about 5 V are expected in the plasma region adjacent to the cathode sheath. Rakhovsky (1977Rakhovsky ( , 1984 was the first to apply the well known 'constriction resistance' formula to the cathode spot problem: he estimated the voltage drop 1/4aa produced by current I flowing from a half-space filled with plasma of electrical conductivity (T into a circle of radius a (spot radius) on a metal surface. For electron temperatures T, = 1-3 eV the Spitzer-Harm expression for a fully ionised gas yields 0 = 10' R -' m"; therefore the maximum current density producing drops of several volts is limited to about lo9 A m-2.…”
mentioning
confidence: 99%