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@ARTICLE{Yan:186619,
author = {Yan, Z. and Martin, C. L. and Guillon, Olivier and Bouvard,
D. and Lee, C. S.},
title = {{M}icrostructure evolution during the co-sintering of
{N}i/{B}a{T}i{O}$_{3}$ multilayer ceramic capacitors modeled
by discrete element simulations},
journal = {Journal of the European Ceramic Society},
volume = {34},
number = {13},
issn = {0955-2219},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2015-00692},
pages = {3167 - 3179},
year = {2014},
abstract = {Electrode discontinuities are a critical issue for
manufacturing ultrathin multilayer ceramic capacitors
(MLCCs). The Discrete Element Method is used to simulate, at
the particle length scale, the microstructure evolution
during the co-sintering of state-of-the-art nickel
based-MLCCs. Electrode discontinuities are considered to
originate from the heterogeneities in the initial powder
packing and to grow because of the constraint imposed by
adjacent dielectric layers. A parametric study demonstrates
that: (i) fast heating rate leads to lower electrode
discontinuity during heating, (ii) green density and
thickness of the electrode should be optimized to improve
the electrode connectivity, (iii) rearrangement of the
nickel particles plays a significant role in electrode
discontinuity, and (iv) the addition of non-sintering
inclusions can improve the electrode connectivity. These
findings can be generalized to other multilayer components.},
cin = {IEK-1},
ddc = {660},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {899 - ohne Topic (POF2-899)},
pid = {G:(DE-HGF)POF2-899},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000338621600004},
doi = {10.1016/j.jeurceramsoc.2014.04.013},
url = {https://juser.fz-juelich.de/record/186619},
}