Magnetic constriction effects in high-current vacuum arcs prior to the release of anode vapor

Raymond L. Boxman

doi:10.1063/1.323994

Magnetic constriction effects in high-current vacuum arcs prior to the release of anode vapor

Raymond L. Boxman

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A model is developed describing the interelectrode plasma generated by a multi-cathode-spot cathode as a conducting fluid flowing from the cathode to the anode. The model is analyzed numerically for a sample physical situtation consisting of a 3-kA Cu vapor arc between 25-mm-diam electrodes separated by 9 mm, in which case the mass density and fluid velocity are found to be 5×^-5 kg/m³ and 7×10³ m/s, respectively. The fluid flow is analyzed and a constriction caused by the magnetic pinch force is found to develop near the anode. A constriction in the current flow is also calculated, caused primarily by the Hall current.

Original language	English
Pages (from-to)	2338-2345
Number of pages	8
Journal	Journal of Applied Physics
Volume	48
Issue number	6
DOIs	https://doi.org/10.1063/1.323994
State	Published - 1977

Access to Document

10.1063/1.323994

Cite this

@article{653a4a34d3a04432921db59e58c70a0c,

title = "Magnetic constriction effects in high-current vacuum arcs prior to the release of anode vapor",

abstract = "A model is developed describing the interelectrode plasma generated by a multi-cathode-spot cathode as a conducting fluid flowing from the cathode to the anode. The model is analyzed numerically for a sample physical situtation consisting of a 3-kA Cu vapor arc between 25-mm-diam electrodes separated by 9 mm, in which case the mass density and fluid velocity are found to be 5×-5 kg/m3 and 7×103 m/s, respectively. The fluid flow is analyzed and a constriction caused by the magnetic pinch force is found to develop near the anode. A constriction in the current flow is also calculated, caused primarily by the Hall current.",

author = "Boxman, {Raymond L.}",

year = "1977",

doi = "10.1063/1.323994",

language = "אנגלית",

volume = "48",

pages = "2338--2345",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "6",

}

TY - JOUR

T1 - Magnetic constriction effects in high-current vacuum arcs prior to the release of anode vapor

AU - Boxman, Raymond L.

PY - 1977

Y1 - 1977

N2 - A model is developed describing the interelectrode plasma generated by a multi-cathode-spot cathode as a conducting fluid flowing from the cathode to the anode. The model is analyzed numerically for a sample physical situtation consisting of a 3-kA Cu vapor arc between 25-mm-diam electrodes separated by 9 mm, in which case the mass density and fluid velocity are found to be 5×-5 kg/m3 and 7×103 m/s, respectively. The fluid flow is analyzed and a constriction caused by the magnetic pinch force is found to develop near the anode. A constriction in the current flow is also calculated, caused primarily by the Hall current.

AB - A model is developed describing the interelectrode plasma generated by a multi-cathode-spot cathode as a conducting fluid flowing from the cathode to the anode. The model is analyzed numerically for a sample physical situtation consisting of a 3-kA Cu vapor arc between 25-mm-diam electrodes separated by 9 mm, in which case the mass density and fluid velocity are found to be 5×-5 kg/m3 and 7×103 m/s, respectively. The fluid flow is analyzed and a constriction caused by the magnetic pinch force is found to develop near the anode. A constriction in the current flow is also calculated, caused primarily by the Hall current.

UR - http://www.scopus.com/inward/record.url?scp=36749113100&partnerID=8YFLogxK

U2 - 10.1063/1.323994

DO - 10.1063/1.323994

M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???

AN - SCOPUS:36749113100

VL - 48

SP - 2338

EP - 2345

JO - Journal of Applied Physics

JF - Journal of Applied Physics

SN - 0021-8979

IS - 6

ER -

Magnetic constriction effects in high-current vacuum arcs prior to the release of anode vapor

Abstract

Access to Document

Other files and links

Fingerprint

Cite this