Detail publikace

The Role of Technological Input Parameters on a Quality of Plasma Sprayed Thermal Barrier Coatings

KLAKURKOVÁ, L. ČELKO, L. SLÁMEČKA, K. DVOŘÁČEK, E. PODRÁBSKÝ, T. ŠVEJCAR, J.

Originální název

The Role of Technological Input Parameters on a Quality of Plasma Sprayed Thermal Barrier Coatings

Typ

abstrakt

Jazyk

angličtina

Originální abstrakt

The thermal barrier coatings uses the approach of functional gradient coatings, where combination of ceramic and metallic coatings are applied to reduce the temperature height and also to increase oxidation and corrosion resistance of the substrate alloys on which are deposited. Thermal barrier coatings are most frequently produced from the top ceramic coating based on YSZ (ZrO2+Y2O3) and metallic bond coating based on M-CrAlY, where M means Ni, Co, Fe or their appropriate combination. Their formation is usually provided by means of electron beam physical vapour deposition (EB-PVD) or vacuum, low pressure or atmospheric plasma spraying techniques. Despite the requirements on the product shape simplicity, the air plasma spraying offers high productivity, sufficient quality and disproportionate lower production costs in comparison with the other mentioned technologies. The contribution deals with the influence of input technological parameters (feeding rates of powders, plasma and carrier gas pressures, etc.) on a resulting quality of thermal barrier coatings, where high density of both metallic and ceramic coatings with minimum of porosity plays a critical role. The changes in microstructure of thermal barrier coatings after the spraying were evaluated by means of porosimetry, scanning electron microscopy and image analysis methods.

Klíčová slova

plasma spray, termal barrier coatins, technological parameters

Autoři

KLAKURKOVÁ, L.; ČELKO, L.; SLÁMEČKA, K.; DVOŘÁČEK, E.; PODRÁBSKÝ, T.; ŠVEJCAR, J.

Vydáno

3. 9. 2012

Nakladatel

Materials Research Society of Serbia

Místo

Belgrade, Serbia

Strany od

83

Strany do

83

Strany počet

1

BibTex

@misc{BUT98855,
  author="Lenka {Klakurková} and Ladislav {Čelko} and Karel {Slámečka} and Emil {Dvořáček} and Tomáš {Podrábský} and Jiří {Švejcar}",
  title="The Role of Technological Input Parameters on a Quality of Plasma Sprayed Thermal Barrier Coatings",
  booktitle="YUCOMAT 2012, The Book of Abstracts",
  year="2012",
  edition="14",
  pages="83--83",
  publisher="Materials Research Society of Serbia",
  address="Belgrade, Serbia",
  note="abstract"
}