Durability of Amorphous and Crystalline BMAS Thermal Barrier Coatings Produced by Plasma Spraying

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F17%3A00465123" target="_blank" >RIV/68081723:_____/17:00465123 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26620/17:PU121330

Result on the web

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.258.383" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/SSP.258.383</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4028/www.scientific.net/SSP.258.383" target="_blank" >10.4028/www.scientific.net/SSP.258.383</a>

Result language

angličtina

Original language name

Durability of Amorphous and Crystalline BMAS Thermal Barrier Coatings Produced by Plasma Spraying

Original language description

Barium-Magnesium-Aluminium-Silicate (BMAS) powder was produced from a mixture of initial compounds BaO–MgO–Al2O3–SiO2 by means of solid state synthesis at the temperature of 1200 °C for 3 hours in a laboratory furnace. Synthetized powder was crushed into the fraction of 15-45 micrometer in a planetary ball mill. Thermal barrier coating system consisting of CoNiCrAlY (bond coat) and BMAS (top coat) was sprayed by atmospheric plasma spray technique onto the polycrystalline nickel-based superalloy substrate. During plasma spraying process, the BMAS underwent phase transformation and the amorphous phase within the top coat was produced. Therefore, after the spraying, several samples were crystallized via annealing in a furnace (4 hours at 1200 °C or 24 hours at 1000 °C) or by subjecting them to several passes of plasma jet. Both samples with an amorphous phase and fully-crystallized samples were subjected to the fire in a burner-rig test (propane-oxygen flame, single 3 + 3 minute cycle), where the top coat reached the temperature of 1150 °C. Top coat failure occurred during the cooling period due to the transformation of the amorphous phase into the crystalline one and/or due to the difference in thermal conductivity and expansion between the top coat and the bond coat.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

—

OECD FORD branch

20506 - Coating and films

Project

<a href="/en/project/GA15-20991S" target="_blank" >GA15-20991S: Plasma deposition, microstructural and thermo-mechanical stability of environmental barrier coatings</a><br>

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

Materials Structure & Micromechanics of Fracture VIII

ISBN

978-3-03835-626-4

ISSN

1662-9779

e-ISSN

—

Number of pages

4

Pages from-to

383-386

Publisher name

Trans Tech Publications

Place of publication

Zürrich

Event location

Brno

Event date

Jun 27, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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