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Title: An experimental study of atmospheric pressure dielectric barrier discharge (DBD) in argon

In this paper, experimental results on atmospheric pressure argon dielectric barrier discharge (DBD) have been presented. The discharge was generated using a high voltage (0 to 20 kV) power supply operating at frequency of 10 to 30 kHz and was studied by means of electrical and optical measurements. A homogeneous and steady discharge was observed between the electrodes with gap spacing from 1 mm to 3 mm and with a dielectric barrier of thickness 1.5 mm while argon gas is fed at a controlled flow rate of 2liter per min. The electron temperature (T{sub e}) and electron density (n{sub e}) of the plasma have been determined by means of optical emission spectroscopy. Our results show that the electron density is of the order of 10{sup 16} cm{sup −3} while the electron temperature is estimated to be ∼ 1 eV. The homogeneity and non-thermal nature of the discharge were utilized in the investigation of the change in wettabilty of a polymer sample subjected to the treatment by the discharge. Contact angle analysis showed that the discharge was effective in improving the wettability of low density Polyethylene (LDPE) polymer sample after the treatment.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Department of Natural Sciences, School of Science, Kathmandu University, Dhulikhel (Nepal)
  2. Department of Natural Sciences, School of Science, Kathmandu University, Dhulikhel, Nepal and Department of Electrical, Khwopa College of Engineering, Libali-2, Bhaktapur (Nepal)
  3. Department of Natural Sciences, School of Science, Kathmandu University, Dhulikhel, Nepal and Department of Physics, Basu College, Kalighat, Byasi, Bhaktapur (Nepal)
  4. Plasma Technology Research Centre, Physics Department, Faculty of Science, University of Malaya, 50603 Kuala Lumpur (Malaysia)
Publication Date:
OSTI Identifier:
22265997
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1588; Journal Issue: 1; Conference: 4. international meeting on frontiers in physics, Kuala Lumpur (Malaysia), 27-30 Aug 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ARGON; ATMOSPHERIC PRESSURE; DENSITY; ELECTRIC POTENTIAL; ELECTRON DENSITY; ELECTRON TEMPERATURE; EMISSION SPECTROSCOPY; FLOW RATE; PLASMA; POLYETHYLENES; THICKNESS