TY  - JOUR
AU  - Jarligo, M.O.
AU  - Mack, D. E.
AU  - Mauer, G.
AU  - Vaßen, R.
AU  - Stöver, D.
TI  - Atmospheric Plasma Spraying of High Melting Temperature Complex Perovskites for TBC Application
JO  - Journal of thermal spray technology
VL  - 19
SN  - 1059-9630
CY  - Boston, Mass.
PB  - Springer
M1  - PreJuSER-8254
PY  - 2010
N1  - Record converted from VDB: 12.11.2012
AB  - High melting materials have always been very attractive candidates for materials development in thermal barrier coating (TBC) applications. Among these materials, complex perovskites with Ba(Mg1/3Ta2/3)O3 and La(Al1/4Mg1/2T1/4)O3 compositions have been developed and deposited in TBC systems by atmospheric plasma spraying. Spray parameters were optimized and in-flight particle temperatures were recorded using Accuraspray-g3 and DPV 2000. Plasma sprayed coatings were found to undergo non-stoichiometric decomposition of components which could have contributed to early failure of the coatings. Particle temperature diagnostics suggest that gun power of ~15 kW or lower where majority of the particles have already solidified upon impact to the substrate could probably prevent the decomposition of phases. Additionally, it has been found that the morphology of the powder feedstock plays a critical role during atmospheric plasma spraying of complex perovskites.
LB  - PUB:(DE-HGF)16
C6  - pmid:12853194
UR  - <Go to ISI:>//WOS:000273671500033
DO  - DOI:10.1007/s11666-009-9377-3
UR  - https://juser.fz-juelich.de/record/8254
ER  -