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Spectroscopic and P...
Spectroscopic and Photographic Evaluation of the Near-Surface Layer Produced by Arc-Induced Polymer Ablation
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- Pettersson, Jonas (författare)
- KTH,Skolan för elektroteknik och datavetenskap (EECS)
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- Becerra Garcia, Marley, 1979- (författare)
- KTH,Elektroteknisk teori och konstruktion
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- Franke, Steffen (författare)
- Leibniz Inst Plasma Sci & Technol, D-17489 Greifswald, Germany.
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- Gortschakow, Sergey (författare)
- Leibniz Inst Plasma Sci & Technol, D-17489 Greifswald, Germany.
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(creator_code:org_t)
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2019
- 2019
- Engelska.
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Ingår i: IEEE Transactions on Plasma Science. - : IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC. - 0093-3813 .- 1939-9375. ; 47:4, s. 1851-1858
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- High-intensity plasmas can release material from the surface of polymers by a process known as arc-induced ablation. As consequence, the formation of a near-surface layer of polymeric vapor is generally assumed. In order to investigate the near-surface layer formed by the ablation of polyoxymethylene, high-speed photography and space-resolved optical emission spectroscopy are used. Transient arc plasmas generated under a 1.9-kA, 50-Hz current semicycle are used as ablation source in air. It is found that the near-surface ablation layer strongly scatters radiation emitted by the arc core. This effect is caused by light scattering of micrometer-size fragments released by the ablating polymer. This finding shows that the near-surface layer is not only composed of vapor but also contains a significant density of large-sized polymer fragments. These fragments are formed a few milliseconds after the ignition of the arc plasma, and their density rapidly decreases with the distance to the surface.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- Arc plasma
- optical emission spectroscopy
- polymer ablation
- scattering
- vapor layer
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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