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@ARTICLE{Bakan:829328,
author = {Bakan, Emine and Mauer, Georg and Koch, Dietmar and Vassen,
Robert and Sohn, Yoo Jung},
title = {{A}pplication of {H}igh-{V}elocity {O}xygen-{F}uel ({HVOF})
{S}praying to {F}abrication of {Y}b2{S}i2{O}7
{E}nvironmental {B}arrier {C}oatings},
journal = {Coatings},
volume = {7},
number = {4},
issn = {2079-6412},
address = {Basel},
publisher = {MDPI},
reportid = {FZJ-2017-03048},
pages = {55},
year = {2017},
abstract = {From the literature, it is known that due to their glass
formation tendency, it is not possible to deposit
fully-crystalline silicate coatings when the conventional
atmospheric plasma spraying (APS) process is employed. In
APS, rapid quenching of the sprayed material on the
substrate facilitates the amorphous deposit formation, which
shrinks when exposed to heat and forms pores and/or cracks.
This paper explores the feasibility of using a high-velocity
oxygen-fuel (HVOF) process for the cost-effective
fabrication of dense, stoichiometric, and crystalline
Yb2Si2O7 environmental barrier coatings. We report our
findings on the HVOF process optimization and its resultant
influence on the microstructure development and
crystallinity of the Yb2Si2O7 coatings. The results reveal
that partially crystalline, dense, and vertical crack-free
EBCs can be produced by the HVOF technique. However, the
furnace thermal cycling results revealed that the bonding of
the Yb2Si2O7 layer to the Silicon bond coat needs to be
improved},
cin = {IEK-1},
ddc = {660},
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:000403444600010},
doi = {10.3390/coatings7040055},
url = {https://juser.fz-juelich.de/record/829328},
}