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Characterization of Atmospheric Pres...

McWilliams, Anthony Joseph.

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Characterization of Atmospheric Pressure Plasma Torch and the Surface Interaction for Material Removal.

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
正題名/作者:	Characterization of Atmospheric Pressure Plasma Torch and the Surface Interaction for Material Removal./
作者:	McWilliams, Anthony Joseph.
面頁冊數:	242 p.
附註:	Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.
Contained By:	Dissertation Abstracts International74-07B(E).
標題:	Engineering, General. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3538427
ISBN:	9781303012655

Characterization of Atmospheric Pressure Plasma Torch and the Surface Interaction for Material Removal.
McWilliams, Anthony Joseph.

Characterization of Atmospheric Pressure Plasma Torch and the Surface Interaction for Material Removal. - 242 p.

Source: Dissertation Abstracts International, Volume: 74-07(E), Section: B.

Thesis (Ph.D.)--North Carolina State University, 2012.

An atmospheric pressure plasma torch has been developed and characterized for removal of organic based coatings. The focus of the Strategic Environmental Research & Development Program (SERDP) project WP-1762, that funded the bulk of this dissertation work, is removal of paint from US Navy vessels. The goal is to develop a novel technology for coating removal that is capable of reducing the amount of environmental waste produced during the commonly used grit blasting process. The atmospheric pressure air plasma torch was identified as having the capacity to remove the paint systems while using only compressed air and electricity as a media-less removal system with drastically reduced waste generation. Any improvements to the existing technology need to be based on scientific knowledge and thus the plasma removal mechanisms or material warranted investigation. The removal of material does not show a strong relation to the plasma parameters of power, frequency, and gas flow, nor is there a strong relation to the presences of inorganic fillers impeding or altering the removal rates. The underlying removal mechanisms also do not show a strong correlation to the rotational temperature of the plasma but do show a strong correlation to the optical emission intensity. Primarily, the emission from atomic oxygen and molecular nitrogen were identified significant contributors and were investigated further. The plasma feed gas was then varied from the nitrogen and oxygen ratio present in ambient air to pure nitrogen to identify the effect of oxygen on the removal mechanism. From these experiments it was concluded that the oxygen present in air does contribute to the overall removal mechanism; however, it is not the sole contributing factor with the other major factor being nitrogen.

ISBN: 9781303012655Subjects--Topical Terms:

1020744
Engineering, General.

Characterization of Atmospheric Pressure Plasma Torch and the Surface Interaction for Material Removal.
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