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@ARTICLE{Zhou:836864,
author = {Zhou, Dapeng and Guillon, Olivier and Vaßen, Robert},
title = {{D}evelopment of {YSZ} {T}hermal {B}arrier {C}oatings
{U}sing {A}xial {S}uspension {P}lasma {S}praying},
journal = {Coatings},
volume = {7},
number = {8},
issn = {2079-6412},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2017-05900},
pages = {120},
year = {2017},
abstract = {The axial injection of the suspension in the atmospheric
plasma spraying process (here called axial suspension plasma
spraying) is an attractive and advanced thermal spraying
technology especially for the deposition of thermal barrier
coatings (TBCs). It enables the growth of columnar-like
structures and, hence, combines advantages of electron
beam-physical vapor deposition (EB-PVD) technology with the
considerably cheaper atmospheric plasma spraying (APS). In
the first part of this study, the effects of spraying
conditions on the microstructure of yttria
partially-stabilized zirconia (YSZ) top coats and the
deposition efficiency were investigated. YSZ coatings
deposited on as-sprayed bond coats with 5 wt $\%$ solid
content suspension appeared to have nicely-developed
columnar structures. Based on the preliminary results, the
nicely developed columnar coatings with variations of the
stand-off distances and yttria content were subjected to
thermal cycling tests in a gas burner rig. In these tests,
all columnar structured TBCs showed relatively short
lifetimes compared with porous APS coatings. Indentation
measurements for Young’s modulus and fracture toughness on
the columns of the SPS coatings indicated a correlation
between mechanical properties and lifetime for the SPS
samples. A simplified model is presented which correlates
mechanical properties and lifetime of SPS coatings.},
cin = {IEK-1 / JARA-ENERGY},
ddc = {660},
cid = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
pnm = {113 - Methods and Concepts for Material Development
(POF3-113) / HITEC - Helmholtz Interdisciplinary Doctoral
Training in Energy and Climate Research (HITEC)
(HITEC-20170406)},
pid = {G:(DE-HGF)POF3-113 / G:(DE-Juel1)HITEC-20170406},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000408908800013},
doi = {10.3390/coatings7080120},
url = {https://juser.fz-juelich.de/record/836864},
}