Detail publikace

Advanced Microscopic Study of Suspension Plasma Sprayed Zirconia Coatings with Different Microstructures

SOKOLOWSKI, P. PAWLOWSKI, L. DIETRICH, D. LAMPKE, T. JECH, D.

Originální název

Advanced Microscopic Study of Suspension Plasma Sprayed Zirconia Coatings with Different Microstructures

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The present paper is focused on the characterization of the differences between two microstructures that can be obtained using SPS technology, namely (i) columnar and (ii) two-zone microstructure including lamellas and fine unmelted particulates. The optimization of spray parameters was made, and the advanced microstructural studies of obtained coatings were performed. The work was focused on zirconia stabilized by yttria (YSZ, ZrO2 + 14 wt.% Y2O3) and both by yttria and ceria (YCSZ, ZrO2 + 24 wt.% CeO2 + 2.5 wt.% Y2O3) which are frequently used as thermal barrier coatings. Two types of microstructure were achieved using two different plasma torches, namely SG-100 of Praxair and Triplex of Oerlikon Metco. The microstructure of prepared coatings was analyzed using scanning electron microscopy with secondary electrons detector and backscattered electrons. Energy dispersive spectroscopy was performed to analyze the chemical composition of sprayed coatings. By electron backscatter diffraction grain shape, size, and crystal orientation were determined. The analysis enabled the discussion of the coatings growth mechanism. Finally, the Shape From Shading technique was applied to recreate and to analyze 3D views of coatings topographies, and using laser confocal microscopy, the surface roughness was examined.

Klíčová slova

columnar microstructure; electron backscatter diffraction; suspension plasma spraying; thermal barrier coatings; two-zone microstructure; yttriaceria-stabilized zirconia; yttria-stabilized zirconia

Autoři

SOKOLOWSKI, P.; PAWLOWSKI, L.; DIETRICH, D.; LAMPKE, T.; JECH, D.

Rok RIV

2015

Vydáno

24. 9. 2015

Nakladatel

Springer International Publishing AG

Místo

Slovakia

ISSN

1059-9630

Periodikum

JOURNAL OF THERMAL SPRAY TECHNOLOGY

Ročník

25

Číslo

1

Stát

Spojené státy americké

Strany od

94

Strany do

104

Strany počet

11

URL

http://link.springer.com/article/10.1007/s11666-015-0310-7

BibTex

@article{BUT115644,
  author="SOKOLOWSKI, P. and PAWLOWSKI, L. and DIETRICH, D. and LAMPKE, T. and JECH, D.",
  title="Advanced Microscopic Study of Suspension Plasma Sprayed Zirconia Coatings with Different Microstructures",
  journal="JOURNAL OF THERMAL SPRAY TECHNOLOGY",
  year="2015",
  volume="25",
  number="1",
  pages="94--104",
  doi="10.1007/s11666-015-0310-7",
  issn="1059-9630",
  url="http://link.springer.com/article/10.1007/s11666-015-0310-7"
}