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@ARTICLE{Dargatz:280718,
author = {Dargatz, Benjamin and Gonzalez, Jesus and Bram, Martin and
Jakes, Peter and Besmehn, Astrid and Schade, Lisa and
Röder, Robert and Ronning, Carsten and Guillon, Olivier},
title = {{FAST}/{SPS} sintering of nanocrystalline zinc
oxide—{P}art {I}: {E}nhanced densification and formation
of hydrogen-related defects in presence of adsorbed water},
journal = {Journal of the European Ceramic Society},
volume = {36},
number = {5},
issn = {0955-2219},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2016-00475},
pages = {1207-1220},
year = {2016},
abstract = {This part is focused on the effect of surface bound water
on the densification behavior and defect stoichiometry of
zinc oxide. The second part [doi:
10.1016/j.jeurceramsoc.2015.12.008] concentrates on the
effect of hydroxide complexions on the microstructural
development, texture formation and anisotropic grain
morphology. Nanocrystalline zinc oxide powder was humidified
or dried followed by quick heating (100 K/min) with
field-assisted sintering technique/spark plasma sintering
(FAST/SPS). Densification is strongly enhanced due to
hydroxide-ion-diffusion mechanism, which shows species with
lower valence and ionic radius in comparison to oxygen ions.
The lowered activation energy for densification exhibits no
impact of the sintering electric current on this enhanced
densification behavior. The defect stoichiometry and
structure of sintered zinc oxide was analyzed by several
spectroscopic methods, indicating the formation of
hydrogen-related defects for sintering in presence of bound
water, while no hydrogen was detected for sintering of dried
powder.},
cin = {IEK-1 / JARA-ENERGY / IEK-9 / ZEA-3},
ddc = {660},
cid = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$ /
I:(DE-Juel1)IEK-9-20110218 / I:(DE-Juel1)ZEA-3-20090406},
pnm = {899 - ohne Topic (POF3-899)},
pid = {G:(DE-HGF)POF3-899},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000369457300011},
doi = {10.1016/j.jeurceramsoc.2015.12.009},
url = {https://juser.fz-juelich.de/record/280718},
}