Title A novel Multi-Phase Flash Sintering (MPFS) technique for 3D complex-shaped ceramics
Authors Molina-Molina, Sandra , Gil-Gonzalez, Eva , DURAN OLIVENCIA, FRANCISCO JOSÉ, Valverde, Jose Manuel , Perejon, Antonio , Sanchez-Jimenez, Pedro E. , Perez-Maqueda, Luis A.
External publication No
Means Appl. Mater. Today
Scope Article
Nature Científica
JCR Quartile 1
SJR Quartile 1
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85120486890&doi=10.1016%2fj.apmt.2021.101274&partnerID=40&md5=d1709e2112ce495ccecbd40272eaa764
Publication date 01/03/2022
ISI 000727724700006
Scopus Id 2-s2.0-85120486890
DOI 10.1016/j.apmt.2021.101274
Abstract This work demonstrates the first proof-of-concept of Multi-Phase Flash Sintering (MPFS). This novel technique essentially consists of applying a rotating electric field to the sample by means of a multi-phase voltage source as furnace temperature increases. Several ceramic materials with different types of electrical conductivities are sintered within seconds at furnace temperatures much lower than those used for traditional DC flash sintering due to the higher power densities administered by a multi-phase power supply. Thus, ceramic materials are flashed at relatively lower applied voltages which minimizes undesired phenomena such as localization and preferential current pathways. Furthermore, MPFS allows diverse electrode configurations to promote a more uniform electric field distribution, enhancing the sintering of 3D complex-shaped specimens. MPFS could be a true breakthrough in materials processing, as 3D complex-shaped specimens are homogeneously sintered at reduced temperatures, while keeping all the advantages of conventional flash sintering. (c) 2021 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ )
Keywords Flash sintering; Alternating current; Field-assisted sintering techniques; Complex shape; Ceramic materials; Yttria-stabilized zirconia
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