W-C electrode erosion in a pulsed arc submerged in liquid

N. Parkansky; L. Glikman; I. I. Beilis; B. Alterkop; R. L. Boxman; D. Gindin

doi:10.1007/s11090-007-9099-6

W-C electrode erosion in a pulsed arc submerged in liquid

N. Parkansky^*, L. Glikman, I. I. Beilis, B. Alterkop, R. L. Boxman, D. Gindin

^*Corresponding author for this work

Tel Aviv University

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

11 Scopus citations

Abstract

Electrode erosion was studied in pulsed arcs ignited between two electrodes comprised of 99.99% C (graphite) and 99.5% W submerged in deionized water or analytical (99.8%) ethanol. In the both cases the erosion rate increased proportionally to the pulse energy, and the total electrode erosion per unit energy was inversely proportional to the discharge pulse duration. Fifteen and sixty-μF discharge capacitors were used for formation of the pulses in water. It was obtained that, respectively (a) erosion of the tungsten anode (W _a) was by factors of 5-6 and 10 greater than that of the carbon (C _c) cathode; (b) erosion of the carbon anode (C _a) was by a factor of 1.34 greater and by a factor of 2.65 less than that of the tungsten cathode (W _c); (c) the total erosion rate of both electrodes (anode and cathode) per unit pulse energy for the W _a-C _c pair was greater by factors of 11 and 12.5 than that for the W _c-C _a pair.

Original language	English
Pages (from-to)	789-797
Number of pages	9
Journal	Plasma Chemistry and Plasma Processing
Volume	27
Issue number	6
DOIs	https://doi.org/10.1007/s11090-007-9099-6
State	Published - Dec 2007

Keywords

Electrode
Erosion
Liquid
Pulsed arc

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title = "W-C electrode erosion in a pulsed arc submerged in liquid",

abstract = "Electrode erosion was studied in pulsed arcs ignited between two electrodes comprised of 99.99% C (graphite) and 99.5% W submerged in deionized water or analytical (99.8%) ethanol. In the both cases the erosion rate increased proportionally to the pulse energy, and the total electrode erosion per unit energy was inversely proportional to the discharge pulse duration. Fifteen and sixty-μF discharge capacitors were used for formation of the pulses in water. It was obtained that, respectively (a) erosion of the tungsten anode (W a) was by factors of 5-6 and 10 greater than that of the carbon (C c) cathode; (b) erosion of the carbon anode (C a) was by a factor of 1.34 greater and by a factor of 2.65 less than that of the tungsten cathode (W c); (c) the total erosion rate of both electrodes (anode and cathode) per unit pulse energy for the W a-C c pair was greater by factors of 11 and 12.5 than that for the W c-C a pair.",

keywords = "Electrode, Erosion, Liquid, Pulsed arc",

author = "N. Parkansky and L. Glikman and Beilis, {I. I.} and B. Alterkop and Boxman, {R. L.} and D. Gindin",

year = "2007",

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doi = "10.1007/s11090-007-9099-6",

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T1 - W-C electrode erosion in a pulsed arc submerged in liquid

AU - Parkansky, N.

AU - Glikman, L.

AU - Beilis, I. I.

AU - Alterkop, B.

AU - Boxman, R. L.

AU - Gindin, D.

PY - 2007/12

Y1 - 2007/12

N2 - Electrode erosion was studied in pulsed arcs ignited between two electrodes comprised of 99.99% C (graphite) and 99.5% W submerged in deionized water or analytical (99.8%) ethanol. In the both cases the erosion rate increased proportionally to the pulse energy, and the total electrode erosion per unit energy was inversely proportional to the discharge pulse duration. Fifteen and sixty-μF discharge capacitors were used for formation of the pulses in water. It was obtained that, respectively (a) erosion of the tungsten anode (W a) was by factors of 5-6 and 10 greater than that of the carbon (C c) cathode; (b) erosion of the carbon anode (C a) was by a factor of 1.34 greater and by a factor of 2.65 less than that of the tungsten cathode (W c); (c) the total erosion rate of both electrodes (anode and cathode) per unit pulse energy for the W a-C c pair was greater by factors of 11 and 12.5 than that for the W c-C a pair.

AB - Electrode erosion was studied in pulsed arcs ignited between two electrodes comprised of 99.99% C (graphite) and 99.5% W submerged in deionized water or analytical (99.8%) ethanol. In the both cases the erosion rate increased proportionally to the pulse energy, and the total electrode erosion per unit energy was inversely proportional to the discharge pulse duration. Fifteen and sixty-μF discharge capacitors were used for formation of the pulses in water. It was obtained that, respectively (a) erosion of the tungsten anode (W a) was by factors of 5-6 and 10 greater than that of the carbon (C c) cathode; (b) erosion of the carbon anode (C a) was by a factor of 1.34 greater and by a factor of 2.65 less than that of the tungsten cathode (W c); (c) the total erosion rate of both electrodes (anode and cathode) per unit pulse energy for the W a-C c pair was greater by factors of 11 and 12.5 than that for the W c-C a pair.

KW - Electrode

KW - Erosion

KW - Liquid

KW - Pulsed arc

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SN - 0272-4324

VL - 27

SP - 789

EP - 797

JO - Plasma Chemistry and Plasma Processing

JF - Plasma Chemistry and Plasma Processing

IS - 6

ER -

W-C electrode erosion in a pulsed arc submerged in liquid

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