Relationship between excitation and vibrational temperatures and the wettability behavior of plasma treated aluminum

Authors

Leo Mendel D. Rosario ⋅ PH National Institute of Physics, University of the Philippines Diliman
Henry V. Lee ⋅ PH National Institute of Physics, University of the Philippines Diliman
Julie Anne S. Ting ⋅ PH Lindberg Ag A4-Branch, Subic Freeport Zone
Henry J. Ramos ⋅ PH National Institute of Physics, University of the Philippines Diliman
Luis Ma. T. Bo-ot ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roy B. Tumlos ⋅ PH College of Arts and Sciences, University of the Philippines Manila

Abstract

The excitation (T_exc) and vibrational (T_vib) temperatures of Ar (I) and N₂ (I), respectively, of an Ar/N₂ plasma flame were determined via optical emission spectroscopy. The plasma flame was produced with the Microwave Atmospheric Plasma Pencil (MAPP) at 2.45 GHz cw microwaves with absorbed powers of 50-250 W and gas mixtures of 5 LPM Ar and 0.1 LPM N₂. The relative intensities of the selected spectral lines of Ar (I) and N2 (I) were fitted with the Boltzmann distribution to obtain Texc and Tvib. The measured T_exc and T_vibwere approximately 0.49-0.55 and 0.33-0.38 eV, respectively. The contact angle (θ) of de-ionized water was obtained using a digital microscope. The relationship between T_excand T_vib and the wettability behavior of the treated aluminum was determined.

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Issue

2014: Proceedings of the 32nd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2014-2B-02

Section

Plasma Physics

Published

2014-10-17

How to Cite

[1]

LMD Rosario, HV Lee, JAS Ting, HJ Ramos, LMT Bo-ot, and RB Tumlos, Relationship between excitation and vibrational temperatures and the wettability behavior of plasma treated aluminum, Proceedings of the Samahang Pisika ng Pilipinas 32, SPP2014-2B-02 (2014). URL: https://proceedings.spp-online.org/article/view/1825.