Note: Erosion of W-Ni-Fe and W-Cu alloy electrodes in repetitive spark gaps

Jiawei Wu; Ruoyu Han; Weidong Ding; Aici Qiu; Junping Tang

doi:10.1063/1.5009455

Note: Erosion of W-Ni-Fe and W-Cu alloy electrodes in repetitive spark gaps

Jiawei Wu
, Ruoyu Han
, Weidong Ding
, Aici Qiu
, Junping Tang

Xi'an Jiaotong University

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

11 Citations (Scopus)

Abstract

A pair of W-Ni-Fe and W-Cu electrodes were tested under 100 kA level pulsed currents for 10 000 shots, respectively. Surface roughness and morphology characteristics of the two pairs of electrodes were obtained and compared. Experimental results indicated cracks divided the W-Cu electrode surface to polygons while the W-Ni-Fe electrode surface remained as a whole with pits and protrusions. Accordingly, the surface roughness of W-Ni-Fe electrodes increased to ∼3 μm while that of W-Cu electrodes reached ∼7 μm at the end of the test. The results reveal that the W-Ni-Fe alloy has a better erosion resistance and potential to be further applied in spark gaps.

Original language	English
Article number	026103
Journal	Review of Scientific Instruments
Volume	89
Issue number	2
DOIs	https://doi.org/10.1063/1.5009455
Publication status	Published - 1 Feb 2018
Externally published	Yes

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title = "Note: Erosion of W-Ni-Fe and W-Cu alloy electrodes in repetitive spark gaps",

abstract = "A pair of W-Ni-Fe and W-Cu electrodes were tested under 100 kA level pulsed currents for 10 000 shots, respectively. Surface roughness and morphology characteristics of the two pairs of electrodes were obtained and compared. Experimental results indicated cracks divided the W-Cu electrode surface to polygons while the W-Ni-Fe electrode surface remained as a whole with pits and protrusions. Accordingly, the surface roughness of W-Ni-Fe electrodes increased to ∼3 μm while that of W-Cu electrodes reached ∼7 μm at the end of the test. The results reveal that the W-Ni-Fe alloy has a better erosion resistance and potential to be further applied in spark gaps.",

author = "Jiawei Wu and Ruoyu Han and Weidong Ding and Aici Qiu and Junping Tang",

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doi = "10.1063/1.5009455",

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T1 - Note

T2 - Erosion of W-Ni-Fe and W-Cu alloy electrodes in repetitive spark gaps

AU - Wu, Jiawei

AU - Han, Ruoyu

AU - Ding, Weidong

AU - Qiu, Aici

AU - Tang, Junping

PY - 2018/2/1

Y1 - 2018/2/1

N2 - A pair of W-Ni-Fe and W-Cu electrodes were tested under 100 kA level pulsed currents for 10 000 shots, respectively. Surface roughness and morphology characteristics of the two pairs of electrodes were obtained and compared. Experimental results indicated cracks divided the W-Cu electrode surface to polygons while the W-Ni-Fe electrode surface remained as a whole with pits and protrusions. Accordingly, the surface roughness of W-Ni-Fe electrodes increased to ∼3 μm while that of W-Cu electrodes reached ∼7 μm at the end of the test. The results reveal that the W-Ni-Fe alloy has a better erosion resistance and potential to be further applied in spark gaps.

AB - A pair of W-Ni-Fe and W-Cu electrodes were tested under 100 kA level pulsed currents for 10 000 shots, respectively. Surface roughness and morphology characteristics of the two pairs of electrodes were obtained and compared. Experimental results indicated cracks divided the W-Cu electrode surface to polygons while the W-Ni-Fe electrode surface remained as a whole with pits and protrusions. Accordingly, the surface roughness of W-Ni-Fe electrodes increased to ∼3 μm while that of W-Cu electrodes reached ∼7 μm at the end of the test. The results reveal that the W-Ni-Fe alloy has a better erosion resistance and potential to be further applied in spark gaps.

UR - https://www.scopus.com/pages/publications/85041468568

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DO - 10.1063/1.5009455

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AN - SCOPUS:85041468568

SN - 0034-6748

VL - 89

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 2

M1 - 026103

ER -

Note: Erosion of W-Ni-Fe and W-Cu alloy electrodes in repetitive spark gaps

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