Effects of Thermal Exposure on Microstructure of Thermal Barriers Deposited by Hybrid Plasma Spraying

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00581976" target="_blank" >RIV/61389021:_____/23:00581976 - isvavai.cz</a>

Result on the web

<a href="https://dl.asminternational.org/itsc/proceedings-abstract/ITSC2023/84536/422/26340" target="_blank" >https://dl.asminternational.org/itsc/proceedings-abstract/ITSC2023/84536/422/26340</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.31399/asm.cp.itsc2023p0422" target="_blank" >10.31399/asm.cp.itsc2023p0422</a>

Result language

angličtina

Original language name

Effects of Thermal Exposure on Microstructure of Thermal Barriers Deposited by Hybrid Plasma Spraying

Original language description

Hybrid plasma spraying combines plasma spraying of dry powders and liquids (suspensions and solutions). Combination of these two approaches allows deposition of microstructures consisting of both conventional coarse and ultrafine splats. Moreover, splats with dissimilar size may have also different chemistry. Such combination is potentially interesting for many fields of thermal spraying, including thermal barrier coatings (TBCs), as novel microstructures may be economically and relatively easily obtained. The technology has recently reached a level, where coatings with interesting hybrid microstructures may be reliably deposited, so that their potential for practical applications may be evaluated. In this study, first experimental TBCs with YSZ-based hybrid topcoat were deposited by hybrid water/argon stabilized plasma (WSP-H) technology. Al2O3 and YAG were selected as secondary phase deposited from suspension as both provide strong materials contrast in scanning electron microscope (SEM) so they can be used as “markers” in the coating microstructure. Samples were exposed to thermal cycling simulating in-service TBC conditions in order to test their thermal shock resistance. Changes of the coating microstructure were studied by SEM analysis and X-ray diffraction.

Czech name

—

Czech description

—

Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Article name in the collection

Thermal Spray 2023: Proceedings from the International Thermal Spray Conference

ISBN

978-1-62708-453-6

ISSN

—

e-ISSN

—

Number of pages

6

Pages from-to

422-427

Publisher name

ASM International

Place of publication

Québec City

Event location

Quebec City

Event date

May 22, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

—