On densification mechanisms of ceramic particles during spark plasma sintering. (1st April 2016)

• Record Type: Journal Article
• Authors: Chaim, Rachman
• Is Part Of: Scripta materialia. Volume 115(2016)
• Page Start: 84
• Page End: 86
• Publication Date: 2016-04-01
• Subjects: Spark plasma sintering -- Powder consolidation -- Densification -- Plastic yield -- Ceramics; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2016.01.010
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract: Plastic deformation and viscous particle sliding are the main deformation mechanisms during densification of ceramic particles by spark plasma sintering (SPS). A recent densification model, where plastic deformation related to the high local pressures formed at the particle contacts during the SPS, was evaluated. The relative densities derived from the model are too low to explain the experimental densification results of nanocrystalline YAG. Viscous particle sliding can explain the difference. Graphical abstract: