Atmosperic microwave plasma treatment on oil-contaminated aluminum surface

Zhu, Weikun

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https://hdl.handle.net/2142/100063 Copy

Description

Title

Atmosperic microwave plasma treatment on oil-contaminated aluminum surface

Author(s)

Zhu, Weikun

Contributor(s)

Ruzic, David N.

Issue Date

2018-05

Keyword(s)

• Atmospheric plasma
• microwave plasma
• aluminum alloy surface treatment

Abstract

An atmospheric microwave plasma was used to clean and activate oil-contaminated Al surfaces. Treatment was done on a large-area basis by moving the desired sample over an atmospheric pressure plasma torch. The cleaning effectiveness is supported by contact angle measurements, ATR-FTIR, SEM, XPS, and a water-break free test. In addition, the effect of processing parameters on the result of surface cleaning and activation was studied. An enhancement of surface hydrophilicity was observed as a result of increasing input microwave power and plasma exposure time. The effect of surface temperature on plasma treatment was investigated through comparing water contact angles of two methods of plasma treatment with identical exposure time, power, and gas composition. Moreover, spatially resolved ATR-FTIR spectrums from partially cleaned surfaces reveal the extent of oxidation across the plasma treated area.

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/100063

Sponsor(s)/Grant Number(s)

Strategic Environmental Research and Development Program (SERDP); project number: WP-2742

Owning Collections