Publication detail

Modification of Plasma Sprayed TiO2 Coatings Characteristics via Controlling the In-flight Temperature and Velocity of the Powder Particles

ČÍŽEK, J. DLOUHÝ, I. ŠIŠKA, F. KHOR, K.

Original Title

Modification of Plasma Sprayed TiO2 Coatings Characteristics via Controlling the In-flight Temperature and Velocity of the Powder Particles

Type

journal article in Web of Science

Language

English

Original Abstract

The study presents a comprehensive research on the plasma spray fabrication of TiO2 coatings with microstructural properties adjustable via controlling the respective in-flight properties of the feedstock particles. The in-flight properties can be, in return, governed by tuning the plasma system spray parameters. By linking the two determined approaches, a connection between the important coating characteristics (composition, microstructure, surface and mechanical properties) to the plasma system settings was established. It was shown that by changing the values of six parameters representing the flexibility of the plasma system, the temperatures and velocities of the particles within the jet can be altered from 2125-2830 K and 137-201 m/s, respectively. The values of the in-flight temperature critically influenced the efficiency of the coating build-up (values ranging from 8-84 um per 1 torch pass) and the content of anatase phase in the fabricated coatings (0-5.8%), while the in-flight velocity of the TiO2 particles was found to be connected to the porosity of the coatings (ranging from 14.4-26.2%) and the adhesion strength at the coating-substrate interface (2.6x difference).

Keywords

plasma spray, TiO2, titania, rutile, in-flight properties, Taguchi

Authors

ČÍŽEK, J.; DLOUHÝ, I.; ŠIŠKA, F.; KHOR, K.

RIV year

2014

Released

27. 8. 2014

Publisher

Springer

ISBN

1059-9630

Periodical

JOURNAL OF THERMAL SPRAY TECHNOLOGY

Year of study

23

Number

8

State

United States of America

Pages from

1339

Pages to

1349

Pages count

11

URL

http://link.springer.com/article/10.1007/s11666-014-0132-z

Full text in the Digital Library

http://hdl.handle.net/11012/42903

BibTex

@article{BUT109351,
  author="Jan {Čížek} and Ivo {Dlouhý} and Filip {Šiška} and Khiam Aik {Khor}",
  title="Modification of Plasma Sprayed TiO2 Coatings Characteristics via Controlling the In-flight Temperature and Velocity of the Powder Particles",
  journal="JOURNAL OF THERMAL SPRAY TECHNOLOGY",
  year="2014",
  volume="23",
  number="8",
  pages="1339--1349",
  doi="10.1007/s11666-014-0132-z",
  issn="1059-9630",
  url="http://link.springer.com/article/10.1007/s11666-014-0132-z"
}