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Page 59
Volume 4
December 10-12, 2018
Rome, Italy
Nano Research & Applications
ISSN: 2471-9838
Advanced Materials 2018
Nano Engineering 2018
JOINT EVENT
22
nd
International Conference on
Advanced Materials
and Simulation
&
22
nd
Edition of International Conference on
Nano Engineering &
Technology
I
n recent years, 3D printing technology has been applied widely
and lots of medical devices such as implants were fabricated
by 3D printing technologies. Materials that implanted in human
body are usually made into a porous shape in order to improve
bone ingrowth. The shape of porous biomedical materials are
usually complex and with a hole size of only several hundred
micrometers. It is difficult to polish the surface of the struts by
using a conventional post-processing method and it is learned
that electro polishing is the most effective method to conduct
the post surface treatment. Generally, it’s too difficult to make
the electrolyte go through the small pores, which sizes are only
a few hundred micrometers. Therefore, different concentrations
of surfactants will be added to the electrolyte to reduce the
surface tension, so that the electrolyte can penetrate into the
porous structure and the struts in the porous materials could all
be infiltrated in the electrolyte. In this study, titanium alloys (Ti64)
which are widely used as biomedical materials were printed by
using selective laser melting (SLM) technology. In the experiment,
oleic acid was used as the surfactant. The hole size is designed
from 300 m to 700 m and the concentration of electrolyte is
0% (no oleic acid added) to 100% (saturated) oleic acid. In this
study, different ratios of oleic acid were added to the electrolyte
and the relationship of the electrolyte with different concentration
of oleic acid, pore size of the porous materials and the surface
roughness of the struts inside the porous materials is explored
and discussed in detail.
Biography
Y P Wang is pursuing her MS in Department of Bioinformatics and Medical
Engineering at Asia University, Taiwan. Her research topic is focused on the
post treatment R&D of 3D printed parts.
wang8603197@gmail.comY P Wang
1
, Y C Wu
2
, Y L Su
1, 3
, S H Liao
1
and
C N Kuo
1
1
Asia University, Republic of China
2
National Sun Yat-Sen University, Republic of China
3
3D Printing Medical Research Center-China Medical University Hospital, Republic of China
Y P Wang et al., Nano Res Appl 2018, Volume 4
DOI: 10.21767/2471-9838-C7-028
Change the surface tension of the electrolyte to
evaluate the effect of electro polishing on porous
materials with different pore sizes