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The rheological behavior of Fe trimodal powder feedstock for μ-PIM was investigated using torque rheometer analysis. The feedstock was prepared by mixing Fe micropowder (~4μm) and nanopowder agglomerates containing discrete particles with sizes of ~300nm and ~30nm, with low viscosity wax-based binders. During the feedstock mixing, a significant increase in mixing torque was observed at powder content...
The design of the trimodal powder feedstock and its feasibility for micro powder injection molding (μ-PIM) were investigated. The feedstock was prepared by mixing Fe micropowder (D50=4μm) and nanopowder agglomerate composed of a bimodal particle distribution (D50=330nm and D50=30nm, respectively) with low viscosity wax-based binders. The homogeneity of the feedstock was evaluated by torque rheometer,...
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