Detail publikace

Evaluation of Microstructure, Phase Composition and Hardness of Alternative Abradable Ceramic Coating Systems Produced by Means of Atmospheric Plasma Spraying

JECH, D. REMEŠOVÁ, M. KOMAROV, P. TKACHENKO, S. ČESÁNEK, Z. SCHUBERT, J. HOUDKOVÁ, Š. ČELKO, L.

Originální název

Evaluation of Microstructure, Phase Composition and Hardness of Alternative Abradable Ceramic Coating Systems Produced by Means of Atmospheric Plasma Spraying

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

Only a few types of commercially available high temperature ceramic abradable coatings are presented on the market and most of them consist of partially stabilized yttria-zirconia with polymer porosity former agent and/or hBN solid lubricant. The basic demand placed on abradable coatings includes the balance between hardness and erosion resistance. The contribution focuses on the description of microstructure, phase composition and hardness of alternative atmospheric plasma sprayed ceramic abradable coatings deposited from four different experimental powder mixtures: (i) commercial yttria-zirconia + 5 wt. % of experimental BaF2/CaF2, (ii) commercial yttria stabilized zirconia + 10 wt. % of experimental BaF2/CaF2, (iii) R&D powder SrxTiOy and (iv) R&D powder SrxTiOy + 5 wt. % of polyester. The abradable coating systems were of ~ 150 μm thick CoNiCrAlY bond coat and of ~ 800-1000 μm thick ceramic top coat. The microstructure and phase composition of all atmospheric plasma sprayed coating systems were evaluated by the means of scanning electron microscopy and X-ray diffraction techniques. To estimate coatings basic parameters the Rockwell hardness HR15Y was determinated.

Klíčová slova

Abradable coatings; Strontium titanate; Barium-Calcium Fluoride; Atmospheric plasma spraying; Microstructure

Autoři

JECH, D.; REMEŠOVÁ, M.; KOMAROV, P.; TKACHENKO, S.; ČESÁNEK, Z.; SCHUBERT, J.; HOUDKOVÁ, Š.; ČELKO, L.

Vydáno

16. 8. 2019

Nakladatel

Trans Tech Publications

Místo

Switzerland

ISBN

978-3-0357-1550-7

Kniha

Binders, Materials and Technologies in Modern Construction V

ISSN

1662-9779

Periodikum

Solid State Phenomena

Ročník

296

Stát

Švýcarská konfederace

Strany od

161

Strany do

166

Strany počet

6

BibTex

@inproceedings{BUT157884,
  author="David {Jech} and Michaela {Remešová} and Pavel {Komarov} and Serhii {Tkachenko} and Zdeněk {Česánek} and Jan {Schubert} and Šárka {Houdková} and Ladislav {Čelko}",
  title="Evaluation of Microstructure, Phase Composition and Hardness of Alternative Abradable Ceramic Coating Systems Produced by Means of Atmospheric Plasma Spraying",
  booktitle="Binders, Materials and Technologies in Modern Construction V",
  year="2019",
  journal="Solid State Phenomena",
  volume="296",
  pages="161--166",
  publisher="Trans Tech Publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/SSP.296.161",
  isbn="978-3-0357-1550-7",
  issn="1662-9779"
}