New granular modeling is proposed to deal with the powder morphology. The simple shear viscosity testing is utilized to computationally measure the variation of relative viscosity with increasing shear strain or solid loading ratio of particles. Abrupt increase of non-newtonian viscosity with increasing the loading ratio has close relationship with the forced orientation of irregularly-shaped particles. This interparticle interaction reveals on the effect of powder morphology on the actual viscous behavior of the powder-binder compound in the powder injection molding.
|Number of pages||6|
|Journal||American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED|
|Publication status||Published - 1998 Dec 1|
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