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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F14%3APU110409" target="_blank" >RIV/00216305:26210/14:PU110409 - isvavai.cz</a>

Výsledek na webu

<a href="http://link.springer.com/article/10.1007/s11666-014-0132-z" target="_blank" >http://link.springer.com/article/10.1007/s11666-014-0132-z</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11666-014-0132-z" target="_blank" >10.1007/s11666-014-0132-z</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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).

Název v anglickém jazyce

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

Popis výsledku anglicky

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).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF THERMAL SPRAY TECHNOLOGY

ISSN

1059-9630

e-ISSN

1544-1016

Svazek periodika

23

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1339-1349

Kód UT WoS článku

000345394800012

EID výsledku v databázi Scopus

2-s2.0-85027918717