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

Result code in 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>
Result on the web
<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>

Result language
angličtina
Original language name
Impact of impurity content on the sintering resistance and phase stability of dysprosia- and yttria-stabilized zirconia thermal barrier coatings
Original language description
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
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JH - Ceramics, fire-proof materials and glass
OECD FORD branch
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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