TY  - JOUR
AU  - SubhadipBhandari
AU  - Mishra, Tarini Prasad
AU  - Guillon, Olivier
AU  - Yadav, Devinder
AU  - Bram, Martin
TI  - Accessing the role of Joule heating on densification during flash sintering of YSZ
JO  - Scripta materialia
VL  - 211
SN  - 1359-6462
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2022-00434
SP  - 114508
PY  - 2022
AB  - Flash sintering is a novel electric field and current assisted sintering technique which densify ceramics at moderate furnace temperature and in short time (few seconds) as compared to the conventional sintering techniques. The onset of flash encompasses three unique characteristics, (i) non-linear rise in conductivity, (ii) luminescence and (iii) rapid densification. the mechanism behind the flash phenomena is not fully understood yet. The present work experimentally demonstrated that the densification in flash sintering is primarily dominated by Joule heating. Herein, we distinguished the onset of flash and the degree of densification of cubic zirconia in sintering atmospheres with different oxygen partial pressures. In this study, we demonstrate that the flash onset temperature and densification are independently influenced by the sintering atmosphere during flash sintering. Furthermore, the extent of densification is not directly influenced by the current density rather, by the power dissipated in the sample.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000788063900006
DO  - DOI:10.1016/j.scriptamat.2022.114508
UR  - https://juser.fz-juelich.de/record/905142
ER  -