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arXiv · 2011.10768

Porosity dependence of powder compaction constitutive parameters: Determination based on spark plasma sintering tests

Charles Manière·Eugene A. Olevsky
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Abstract

The modeling of powder compaction process, such as spark plasma sintering (SPS), requires the determination of the visco-plastic deformation behavior of the particle material including the viscosity moduli. The establishment of these parameters usually entails a long and difficult experimental campaign which in particular involves several hot isostatic pressing tests. A more straightforward method based on the coupled sinter-forging and die compaction tests, which can be easily carried out in a regular SPS device, is presented. Compared to classical creep mechanism studies, this comprehensive experimental approach can reveal the in situ porous structure morphology influence on the sintering process.

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Charles Manière, Eugene A. Olevsky. 2020-11-21. Porosity dependence of powder compaction constitutive parameters: Determination based on spark plasma sintering tests. https://doi.org/10.1016/j.scriptamat.2017.07.026

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