Publisher DOI: 10.1111/jace.13786
Title: Temperature distributions during flash sintering of 8% yttria-stabilized zirconia
Language: English
Authors: Pereira da Silva, João Gustavo 
Lebrun, Jean Marie 
Al-Qureshi, Hazim Ali 
Janßen, Rolf 
Raj, Rishi 
Editor: Olevsky, Eugene A. 
Issue Date: 7-Aug-2015
Publisher: Wiley-Blackwell
Source: Journal of the American Ceramic Society 98 (11): 3525-3528 (2015-11-01)
Journal or Series Name: Journal of the American Ceramic Society 
Abstract (english): 
Flash sintering is a nonlinear phenomenon characterized by a sharp increase in the conductivity of the sample and concomitant rapid densification under an electric field in low temperatures in a matter of seconds. Since it is a transient phenomenon, the power dissipation on the sample is not uniform during the process. Thus, a transient analysis is needed to estimate the temperature of the sample during flash sintering due to Joule heating. In this work, the Finite Element Method on a coupled electrothermal nonlinear analysis was used in order to obtain the specimen temperature of 8YSZ after 5 s of flashing. The results agree with the experimental data obtained by the flashing of dense samples and with previous literature.
URI: http://hdl.handle.net/11420/9407
ISSN: 1551-2916
Institute: Keramische Hochleistungswerkstoffe M-9 
Document Type: Article
Funded by: Deutsche Forschungsgemeinschaft (DFG) 
More Funding information: The authors thank CNPq (Project 246267/2012-7, Ciencia sem Fronteiras) and DAAD for the financial support for this project. The experiments reported in this article, and the work of Rishi Raj, were supported by the Basic Energy Sciences Division of the Department of Energy under Grant No.: DE-FG02-07ER46403. Jean-Marie Lebrun was supported by the Office of Naval Research under the direction of Dr. Lawrence Kabacoff under grant number N00014-12-1-0710.
Project: SFB 986: Teilprojekt C5 - Oxidische Hochtemperatur-Schutzschichtsysteme mittels angepasster Porenstruktur 
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