Abstract
The investigation on plasma-surface interaction was extended from solid and liquid to a semiliquid surface in this study. A semiliquid epoxy film on a steel plate under a local electric field was found to be attracted and repelled alternatingly by a negatively charged electrode tip, exhibiting an interesting oscillation behavior during polymerization, and eventually forming a compression region in the cured film. A model involving electrostatic forces and streamer discharge processes was proposed to interpret the semiliquid film oscillation and compression region formation.
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