5th WCSET-2016 at Vietnam
Technical Session - 1
Title:
Effect of ultrasound power and frequency on the diameter
of nickel microparticles produced by an ultrasound-aided
electric discharge
Authors:
Dung Nguyen Tien, Tuan Hoang Anh
Abstract:
The diameter of metal particles with nanometer or
micrometer size are used in many different fields, such
as pharmaceutical manufacturing, medicine, catalyst in
the chemical industry, environmental industry,
photovoltaic materials and invisible materials absorbing
radar waves in the military. The manufacture of metal
particles with nanometer or micrometer size are done
research by many scientists and caried out by many
different methods. The paper presents the models of
producing the metal microparticles in combination
electric discharge with ultrasound to carry out some of
experimental investigation about the effect of electric
discharge manufacturing (EDM) combined with ultrasound
on diameter of nickel microparticles. Findings of paper
show that while the ultrasound power is 400W and the
ultrasound frequency is 28 kHz and 68 kHz, the diameter
of nickel microparticles is less than 5µm even appearing
nickel microparticles with nanometer size and hollow
nickel microparticles. However, the diameter of nickel
microparticles is more than 60µm while the ultrasound
frequency is 120 kHz. Thus, the more the diameter of
nickel microparticles is, the more the ultrasound
frequency is at the same ultrasound power. Results of
this study are potentials to design and fabricate the
system of ultrasound-aided electric discharge in order
to produce the microparticles applied to the paint
manufacturing industry, cleaning the cylinder wall or
machine parts and manufacturing emulsion fuel.
Keywords: Ultrasound-aided electric
discharge; EDM; ultrasound pamaters; micropartilcles.
Pages:
052-056