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Master sintering curve applied to the Field-Assisted Sintering Technique

Journal of Materials Science, 2010
The master sintering curve approach was extended theoretically to the Field-Assisted Sintering Technique (or SPS). Experimental data from constant heating rate testing confirm the general applicability of this framework. An apparent activation energy of ~290 kJ/mol was found for ultrafine alumina below 1200 °C.
Olivier Guillon, Jochen Langer
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Modelling of the temperature distribution during field assisted sintering

Acta Materialia, 2005
The evolution of the current density and temperature distribution in the punch-die-sample set-up during field activated sintering (FAST), also known as spark plasma sintering or pulsed electric current sintering, was modelled by finite element calculations supported by in situ measured electrical and thermal input data.
Kim Vanmeensel, Alexander M Laptev, J Hennicke   +2 more
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Sintering of tungsten powder with and without tungsten carbide additive by field assisted sintering technology

International Journal of Refractory Metals and Hard Materials, 2012
Abstract Tungsten powder (0.6–0.9 μm) was sintered by field assisted sintering technology (FAST) at various processing conditions. The sample sintered with in-situ hydrogen reduction pretreatment and pulsed electric current during heating showed the lowest amount of oxygen.
S. Chanthapan, A. Kulkarni, J. Singh, C. Haines, D. Kapoor   +4 more
exaly   +2 more sources

Field assisted sintering of yttria ceramics for plasma etching applications

, 2021
Published by RWTH Aachen University ...
Kindelmann, Moritz
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Fundamentals and Applications of Field Assisted Sintering Techniques (FAST)

, 2022
Publisher Copyright: © 2022 Elsevier Inc. All rights reserved.Nowadays FAST (Field Sintering Assisted Technologies) represent a real alternative for powder consolidation, complementing some of the lacks shown by conventional PM processes such as ...
Iñigo Agote, Miguel Angel Lagos
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Surface effects in field-assisted sintering

Journal of Materials Research, 2001
The more-stringent requirements for densification of new out-of-equilibrium powders have created a growing demand for nonconventional rapid sintering processes. Among those, field-assisted sintering techniques (FASTs) have seen a recent renewed interest motivated by their ability to consolidate a large variety of powder materials into high densities in
J. R. Groza, M. Garcia, J. A. Schneider
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Automatic optimal control of Field Assisted Sintering Technology

2014 IEEE International Conference on Automation Science and Engineering (CASE), 2014
In this paper, we introduce a novel model-free optimal control algorithm that finds the near optimal energy saving control trajectory from the observations of the process data. Conventional optimal control algorithms have not been able to find the optimal solution without the dynamic models of the system.
Jinkun Lee, Jogender Singh, Vittal Prabhu   +2 more
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Electric forces effect on field-assisted sintering

Journal of the European Ceramic Society, 2020
Abstract Electric forces acting on crystallographic defects generated at the flash onset or due to the surface polarization of the dielectric surrounding pores have been claimed to interact with the sintering kinetics upon flash processes. Herein, we estimated the magnitude of the external field-induced forces pointing out that the surface ...
Biesuz M., Sglavo V. M.
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Direct comparison between hot pressing and electric field-assisted sintering of submicron alumina

Acta Materialia, 2009
This study compares hot pressing (HP) and the electric field-assisted sintering technique (FAST) of two different electrically insulating Al2O3 submicron powders with median particle sizes of 150 and 500 nm.
Michael J Hoffmann, Olivier Guillon
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Field Assisted Sintering Technology Update, Part I

AM&P Technical Articles, 2016
Abstract Field assisted sintering technology (FAST) enables cost-effective manufacturing of metal, ceramic, and composite components with sub-micron grain microstructures and tailored properties.
Jogender Singh, Chris Haines
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