Publication detail

Plasma-sprayed thermal barrier coatings: numerical study on damage localization and evolution

SLÁMEČKA, K. SKALKA, P. ČELKO, L. POKLUDA, J. SAUCEDO-MORA, L. MARROW, T. THANDAVAMOORTHY, U.

Original Title

Plasma-sprayed thermal barrier coatings: numerical study on damage localization and evolution

Type

journal article in Web of Science

Language

English

Original Abstract

Thermal barrier coatings (TBCs) are advanced material systems used to enhance performance and in-service life of components operated at high temperatures in gas turbines and other power generation devices. Because of complexity, numerical methods became important tools both for design of these coatings and for in-service life estimations and optimization. In this contribution, two main features that affect the TBCs’ performance, namely the roughness of the bond coat and the microstructure of the ceramic top coat, are discussed based on Finite Element Method (FEM) and Finite Element Microstructure MEshfree (FEMME) simulations that were used to calculate stresses and assess damage within the coating. Roughness data obtained from plasma-sprayed CoNiCrAlY + YSZ coated samples are supplemented to discuss assumptions and results of employed numerical models.

Keywords

Thermal barrier coatings; Plasma spraying; Finite element modelling; Multi-scale numerical model; Roughness

Authors

SLÁMEČKA, K.; SKALKA, P.; ČELKO, L.; POKLUDA, J.; SAUCEDO-MORA, L.; MARROW, T.; THANDAVAMOORTHY, U.

Released

1. 1. 2016

Publisher

Gruppo Italiano Frattura

ISBN

1971-8993

Periodical

Frattura ed Integrita Strutturale

Year of study

10

Number

35

State

Republic of Italy

Pages from

322

Pages to

329

Pages count

8

URL

http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_37.pdf

Full text in the Digital Library

http://hdl.handle.net/11012/180526

BibTex

@article{BUT122922,
  author="Karel {Slámečka} and Petr {Skalka} and Ladislav {Čelko} and Jaroslav {Pokluda} and Luis {Saucedo-Mora} and Thomas James {Marrow} and Uma {Thandavamoorthy}",
  title="Plasma-sprayed thermal barrier coatings: numerical study on damage localization and evolution",
  journal="Frattura ed Integrita Strutturale",
  year="2016",
  volume="10",
  number="35",
  pages="322--329",
  doi="10.3221/IGF-ESIS.35.37",
  issn="1971-8993",
  url="http://www.gruppofrattura.it/pdf/rivista/numero35/numero_35_art_37.pdf"
}