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Field-assisted sintering technology/spark plasma sintering: Mechanisms, materials, and technology developments

: Guillon, Olivier; Gonzalez-Julian, Jesus; Dargatz, Benjamin; Kessel, Tobias; Schierning, Gabi; Räthel, Jan; Herrmann, Mathias


Advanced engineering materials 16 (2014), Nr.7, S.830-849
ISSN: 1438-1656
ISSN: 1615-7508
Fraunhofer IKTS ()

Field-assisted sintering technology/Spark plasma sintering is a low voltage, direct current (DC) pulsed current activated, pressure-assisted sintering, and synthesis technique, which has been widely applied for materials processing in the recent years. After a description of its working principles and historical background, mechanical, thermal, electrical effects in FAST/SPS are presented along with the role of atmosphere. A selection of successful materials development including refractory materials, nanocrystalline functional ceramics, graded, and non-equilibrium materials is then discussed. Finally, technological aspects (advanced tool concepts, temperature measurement, finite element simulations) are covered.