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Rheological Behavior of Blends Gas-Water Atomized Stainless Steel Powder

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Abstract:

This work evaluates the influence of particle morphology in mixture rheology. Range of particle morphology was used, changing in the mixtures the proportion of spherical powders and irregular powders, respectively gas and water atomized powders, in fraction of 0, 25, 50, 75 and 100% in mass. Components were obtained by mixtures with solid loading very close to critical values. Rheological analysis of the mixtures was elaborated in a capillary rheometry. The solids loading maximum was larger in 10% for the mixtures with only gas atomized powder, when compared to the mixture with just water atomized powder. The mixtures between gas and water atomized powders with maximum solid loading present difficulties in obtaining homogeneity and presents high viscosity.

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Info:

Periodical:

Materials Science Forum (Volumes 727-728)

Pages:

239-242

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.727-728.239

Citation:

Cite this paper

Online since:

August 2012

Authors:

Suzy Pascoali, Lucas Dominguini, Joel Brasil Borges, Paulo A.P. Wendhausen

Keywords:

Powder Injection Molding, Rheology, Water Atomized Powder

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