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

Authors

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