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Spark-plasma-sintering and finite element method: From the identification of the sintering parameters of a submicronic α-alumina powder to the development of complex shapes

Abstract : In the present paper, we studied the sintering of a submicronic a-alumina powder and modeled its behavior using Olevsky's model. We further introduced a method for the identification of the creep parameters based on SPS experiments that greatly simplify parameter determination. Subsequently, we used the set of parameters obtained to study the densification of a part with a complex shape.We clearly showed that the thickness shrinkage with different heights engender densification inhomogeneities.
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Charles Manière, Lise Durand, Alicia Weibel, Claude Estournès. Spark-plasma-sintering and finite element method: From the identification of the sintering parameters of a submicronic α-alumina powder to the development of complex shapes. Acta Materialia, Elsevier, 2016, vol. 102, pp. 169-175. ⟨10.1016/j.actamat.2015.09.003⟩. ⟨hal-01447965⟩

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