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

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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Submitted on : Friday, November 20, 2020 - 8:22:13 PM
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Charles Manière, Eugene A. Olevsky. Porosity dependence of powder compaction constitutive parameters: Determination based on spark plasma sintering tests. Scripta Materialia, Elsevier, 2017, 141, pp.62-66. ⟨10.1016/j.scriptamat.2017.07.026⟩. ⟨hal-02616817⟩

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