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@ARTICLE{Ganvir:844600,
author = {Ganvir, Ashish and Joshi, Shrikant and Markocsan, Nicolaie
and Vassen, Robert},
title = {{T}ailoring columnar microstructure of axial suspension
plasma sprayed {TBC}s for superior thermal shock
performance},
journal = {Materials and design},
volume = {144},
issn = {0264-1275},
address = {Amsterdam [u.a.]},
publisher = {Elsevier Science},
reportid = {FZJ-2018-02004},
pages = {192 - 208},
year = {2018},
abstract = {This paper investigates the thermal shock behavior of
thermal barrier coatings (TBCs) produced by axial suspension
plasma spraying (ASPS). TBCs with different columnar
microstructures were subjected to cyclic thermal shock
testing in a burner rig. Failure analysis of these TBCs
revealed a clear relationship between lifetime and porosity.
However, tailoring the microstructure of these TBCs for
enhanced durability is challenging due to their inherently
wide pore size distribution (ranging from few nanometers up
to few tens of micrometers). This study reveals that pores
with different length scales play varying roles in
influencing TBC durability. Fracture toughness shows a
strong correlation with the lifetime of various ASPS TBCs
and is found to be the prominent life determining factor.
Based on the results, an understanding-based design
philosophy for tailoring of the columnar microstructure of
ASPS TBCs for enhanced durability under cyclic thermal shock
loading is proposed.},
cin = {IEK-1},
ddc = {600},
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:000427609400017},
doi = {10.1016/j.matdes.2018.02.011},
url = {https://juser.fz-juelich.de/record/844600},
}