Impact of impurity content on the sintering resistance and phase stability of dysprosia- and yttria-stabilized zirconia thermal barrier coatings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F14%3A00427931" target="_blank" >RIV/61389021:_____/14:00427931 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s11666-013-0014-9" target="_blank" >http://dx.doi.org/10.1007/s11666-013-0014-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11666-013-0014-9" target="_blank" >10.1007/s11666-013-0014-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of impurity content on the sintering resistance and phase stability of dysprosia- and yttria-stabilized zirconia thermal barrier coatings

Popis výsledku v původním jazyce

Dysprosia-stabilized zirconia (DySZ) is a promising candidate to replace yttria-stabilized zirconia(YSZ)as a thermal barrier coating due to its lower inherent thermal conductivity.It is also suggested in studies that DySZ may show greater stability to high temperature phase changes compared to YSZ, possibly allowing for coatings with extended lifetimes.Separately,the impurity content of YSZ powders has been proven to influence high-temperature sintering behavior.By lowering the impurity oxides within the spray powder,a coating more resistant to sintering can be produced.This study presents both high purity and standard purity dysprosia and YSZ coatings and their performance after a long heat treatment.Coatings were produced using powder with the same morphology and grain size;only the dopant and impurity content were varied. Samples have been heat treated for exposure times up to 400 h at a temperature of 1150 °C. Samples were measured for thermal conductivity to plot the evolution

Název v anglickém jazyce

Impact of impurity content on the sintering resistance and phase stability of dysprosia- and yttria-stabilized zirconia thermal barrier coatings

Popis výsledku anglicky

Dysprosia-stabilized zirconia (DySZ) is a promising candidate to replace yttria-stabilized zirconia(YSZ)as a thermal barrier coating due to its lower inherent thermal conductivity.It is also suggested in studies that DySZ may show greater stability to high temperature phase changes compared to YSZ, possibly allowing for coatings with extended lifetimes.Separately,the impurity content of YSZ powders has been proven to influence high-temperature sintering behavior.By lowering the impurity oxides within the spray powder,a coating more resistant to sintering can be produced.This study presents both high purity and standard purity dysprosia and YSZ coatings and their performance after a long heat treatment.Coatings were produced using powder with the same morphology and grain size;only the dopant and impurity content were varied. Samples have been heat treated for exposure times up to 400 h at a temperature of 1150 °C. Samples were measured for thermal conductivity to plot the evolution

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JH - Keramika, žáruvzdorné materiály a skla

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

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

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Svazek periodika

23

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

160-169

Kód UT WoS článku

000329106200021

EID výsledku v databázi Scopus

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