The Role of Microstructure on Wettability of Plasma Sprayed Yttria Stabilized Zirconia Coatings

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F17%3APU124363" target="_blank" >RIV/00216305:26620/17:PU124363 - isvavai.cz</a>

Alternative codes found

RIV/61389021:_____/17:00489903

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

The Role of Microstructure on Wettability of Plasma Sprayed Yttria Stabilized Zirconia Coatings

Original language description

Atmospheric plasma spraying utilizing initial powder materials in micrometric size has been successfully used for various applications in different fields of the industry over the past several decades. Nowadays, the new trend in plasma spraying is to use sub-micron or nano-sized powder feedstocks in the form of colloidal suspension. This relatively new technology enables to obtain specific types of dense vertically cracked, fully dense or columnar microstructure. The aim of this work is microstructures, i.e. lamellar and columnar, were sprayed from chemically the same yttria-stabilized zirconia ceramics by means of conventional atmospheric plasma spray and suspension water stabilized plasma spray techniques, respectively. Microstructural and phase composition of the initial powders and as-sprayed coatings were investigated using optical microscopy, scanning electron microscopy and X-ray diffraction techniques. Topography of coatings surface was measured by means of non-contact optical profilometry. The YSZ coatings wettability was evaluated based on water droplet contact angle using Sessile droplet method. The coatings microstructure reveals the important role in the change of droplet contact angle, where lamellar structure was found close to hydrophilic-hydrophobic transition and columnar structure was found almost superhydrophobic.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20506 - Coating and films

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2017

Confidentiality

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

Article name in the collection

Metal 2017 Conference Prosceedings

ISBN

978-80-87294-79-6

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

1116-1121

Publisher name

TANGER Ltd.

Place of publication

Ostrava

Event location

Brno

Event date

May 24, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000434346900178