Micro powder metal injection molding has received attention as a manufacturing
technology for microparts. Small powder size is very useful in achieving detailed structures. STS
nanopowders with an average diameter of 100 nm and STS micropowders with an average diameter
of 5 micron were utilized to produce feedstock. The mixing behavior of the feedstock was indicated
that the nanoparticle feedstock produce highest mixing torque at various powder_loading than the
micropowder feedstock. Ares rheometer was utilized to examine visco-elatic flow behavior. The
nanoparticles feedstocks showed that elastic properties are dominant in flow behavior and high
viscosity. Whereas the micropowders feedstocks, viscous properties are dominant in flow behavior
and less viscosity.
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