TY  - JOUR
AU  - Steinke, T.
AU  - Mauer, G.
AU  - Vaßen, R.
AU  - Stöver, D.
AU  - Roth-Fagaraseanu, D.
AU  - Hancock, M.
TI  - Process Design and Monitoring for Plasma Sprayed Abradable Coatings
JO  - Journal of thermal spray technology
VL  - 19
SN  - 1059-9630
CY  - Boston, Mass.
PB  - Springer
M1  - PreJuSER-10264
SP  - 756-764
PY  - 2010
N1  - Record converted from VDB: 12.11.2012
AB  - Abradable coatings in compressor and high-pressure stages of gas turbines must provide specific hardness and porosity values to achieve an optimal cut-in of the blade tips. A fractional factorial experimental plan was designed to investigate the influence of the plasma spraying parameters argon flow rate, current, spraying distance and powder feed rate on these properties of magnesia spinel. Based on the results, magnesia spinel coatings with low (~400 HV0.5), medium (~600 HV0.5) and high hardness (~800 HV0.5) could be reliably manufactured. Further incursion rig tests confirmed the dependence of the rub-in behavior and abradability on the coating characteristics and process parameters, respectively. Process monitoring was also applied during plasma spraying of magnesia spinel abradables on batches of turbine components. The recorded particle characteristics and coating properties showed a good reproducibility of the spraying process
LB  - PUB:(DE-HGF)16
C6  - pmid:22969472
C2  - pmc:PMC3435599
UR  - <Go to ISI:>//WOS:000277027000008
DO  - DOI:10.1007/s11666-010-9468-1
UR  - https://juser.fz-juelich.de/record/10264
ER  -