A sacrificial material approach for spark plasma sintering of complex shapes. (November 2016)

• Record Type: Journal Article
• Authors: Manière, Charles; Durand, Lise; Weibel, Alicia; Chevallier, Geoffroy; Estournès, Claude
• Is Part Of: Scripta materialia. Volume 124(2016)
• Page Start: 126
• Page End: 128
• Publication Date: 2016-11
• Subjects: Spark plasma sintering -- Complex shape -- Simulation -- Sacrificial material; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.07.006
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: An optimized process for the densification of a complex shape part is studied. Production of samples with a complex shape is very difficult in uniaxial die compaction processes because of the thickness differences responsible for densification inhomogeneities. To solve this problem in the case of a particular shape, we propose a solution consisting of homogenization of the shrinkage distances by means of the use of a sacrificial material. This solution was first studied by a finite element approach and then tested experimentally. We obtained a part of complex shape with an overall relative density of 99% and a homogeneous microstructure. Graphical abstract: