Durability of Amorphous and Crystalline BMAS Thermal Barrier Coatings Produced by Plasma Spraying
Identifikátory výsledku
Kód výsledku v 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>
Nalezeny alternativní kódy
RIV/00216305:26620/17:PU121330
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Durability of Amorphous and Crystalline BMAS Thermal Barrier Coatings Produced by Plasma Spraying
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Durability of Amorphous and Crystalline BMAS Thermal Barrier Coatings Produced by Plasma Spraying
Popis výsledku anglicky
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.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20506 - Coating and films
Návaznosti výsledku
Projekt
<a href="/cs/project/GA15-20991S" target="_blank" >GA15-20991S: Plazmová depozice, strukturní a termomechanická stabilita environmentálních bariér</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2017
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
Materials Structure & Micromechanics of Fracture VIII
ISBN
978-3-03835-626-4
ISSN
1662-9779
e-ISSN
—
Počet stran výsledku
4
Strana od-do
383-386
Název nakladatele
Trans Tech Publications
Místo vydání
Zürrich
Místo konání akce
Brno
Datum konání akce
27. 6. 2016
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
—