% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{deGoes:877274,
author = {de Goes, Wellington Uczak and Markocsan, Nicolaie and
Gupta, Mohit and Vaßen, Robert and Matsushita, Taishi and
Illkova, Kseniya},
title = {{T}hermal barrier coatings with novel architectures for
diesel engine applications},
journal = {Surface and coatings technology},
volume = {396},
issn = {0257-8972},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2020-02097},
pages = {125950},
year = {2020},
abstract = {The increased demands for higher efficiency and
environmentally friendly diesel engines have led to a
continuous search for new coating processing routes and new
ceramic materials that can provide the required properties
when applied on engine components such as pistons and
exhaust manifolds. Although successful in gas turbine
applications, thermal barrier coatings (TBCs) produced by
suspension plasma spraying (SPS) processes have not been
employed so far in the automotive industry. This work aims
to achieve a better understanding of the role of thermal
conductivity and thermal effusivity on the durability of SPS
TBCs applied to pistons of diesel engines. Three different
coating architectures were considered for this study. The
first architecture was yttria-stabilized zirconia (YSZ)
lamellar top coat deposited by APS (Atmospheric Plasma
Spray) and used as a reference sample in this study. The
second architecture was a columnar SPS top coat of either
YSZ or gadolinium zirconate (GZO) while the third
architecture was an SPS columnar top coat, “sealed” with
a dense sealing layer deposited on the top coat. Two types
of sealing layers were used, a metallic (M) or a ceramic
thermal spray layer (C). Laser Flash Analysis (LFA) was used
to determine the thermal conductivity and thermal effusivity
of the coatings. Two different thermal cyclic tests were
used to test the TBCs behavior under cyclic thermal loads.
Microstructure analysis before and after the thermal cyclic
tests were performed using SEM in different microstructures
and materials. The thermal cyclic test results were
correlated with coatings microstructure and thermophysical
properties. It was observed that the columnar coatings
produced by SPS had an enhanced service life in the thermal
cyclic tests as compared to the APS coatings.},
cin = {IEK-1},
ddc = {670},
cid = {I:(DE-Juel1)IEK-1-20101013},
pnm = {113 - Methods and Concepts for Material Development
(POF3-113)},
pid = {G:(DE-HGF)POF3-113},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000540175000022},
doi = {10.1016/j.surfcoat.2020.125950},
url = {https://juser.fz-juelich.de/record/877274},
}