Unstable behavior of anodic arc discharge for synthesis of nanomaterials

Sophia Gershman; Yevgeny Raitses

doi:10.1088/0022-3727/49/34/345201

Unstable behavior of anodic arc discharge for synthesis of nanomaterials

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

Abstract

A short carbon arc operating with a high ablation rate of the graphite anode exhibits a combined motion of the arc and the arc attachment to the anode. A characteristic time scale of this motion is in a 10^-3 s range. The arc exhibits a negative differential resistance before the arc motion occurs. Thermal processes in the arc plasma region interacting with the ablating anode are considered as possible causes of this unstable arc behavior. It is also hypothesized that the arc motion could potentially cause mixing of the various nanoparticles synthesized in the arc in the high ablation regime.

Original language	English (US)
Article number	345201
Journal	Journal of Physics D: Applied Physics
Volume	49
Issue number	34
DOIs	https://doi.org/10.1088/0022-3727/49/34/345201
State	Published - Jul 27 2016

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Acoustics and Ultrasonics
Surfaces, Coatings and Films

Keywords

arc discharge
arc instabilities
arc synthesis
atmospheric pressure arc
nano materials
nanotubes
plasma instabilities

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10.1088/0022-3727/49/34/345201

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title = "Unstable behavior of anodic arc discharge for synthesis of nanomaterials",

abstract = "A short carbon arc operating with a high ablation rate of the graphite anode exhibits a combined motion of the arc and the arc attachment to the anode. A characteristic time scale of this motion is in a 10-3 s range. The arc exhibits a negative differential resistance before the arc motion occurs. Thermal processes in the arc plasma region interacting with the ablating anode are considered as possible causes of this unstable arc behavior. It is also hypothesized that the arc motion could potentially cause mixing of the various nanoparticles synthesized in the arc in the high ablation regime.",

keywords = "arc discharge, arc instabilities, arc synthesis, atmospheric pressure arc, nano materials, nanotubes, plasma instabilities",

author = "Sophia Gershman and Yevgeny Raitses",

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T1 - Unstable behavior of anodic arc discharge for synthesis of nanomaterials

AU - Gershman, Sophia

AU - Raitses, Yevgeny

PY - 2016/7/27

Y1 - 2016/7/27

N2 - A short carbon arc operating with a high ablation rate of the graphite anode exhibits a combined motion of the arc and the arc attachment to the anode. A characteristic time scale of this motion is in a 10-3 s range. The arc exhibits a negative differential resistance before the arc motion occurs. Thermal processes in the arc plasma region interacting with the ablating anode are considered as possible causes of this unstable arc behavior. It is also hypothesized that the arc motion could potentially cause mixing of the various nanoparticles synthesized in the arc in the high ablation regime.

AB - A short carbon arc operating with a high ablation rate of the graphite anode exhibits a combined motion of the arc and the arc attachment to the anode. A characteristic time scale of this motion is in a 10-3 s range. The arc exhibits a negative differential resistance before the arc motion occurs. Thermal processes in the arc plasma region interacting with the ablating anode are considered as possible causes of this unstable arc behavior. It is also hypothesized that the arc motion could potentially cause mixing of the various nanoparticles synthesized in the arc in the high ablation regime.

KW - arc discharge

KW - arc instabilities

KW - arc synthesis

KW - atmospheric pressure arc

KW - nano materials

KW - nanotubes

KW - plasma instabilities

UR - https://www.scopus.com/pages/publications/84984631794

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DO - 10.1088/0022-3727/49/34/345201

M3 - Article

AN - SCOPUS:84984631794

SN - 0022-3727

VL - 49

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 34

M1 - 345201

ER -

Unstable behavior of anodic arc discharge for synthesis of nanomaterials

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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