Dielectric properties of Ce-doped YAG coatings produced by two techniques of plasma spraying

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F22%3A00350107" target="_blank" >RIV/68407700:21230/22:00350107 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61389021:_____/22:00573504

Výsledek na webu

<a href="https://doi.org/10.1016/j.bsecv.2021.02.002" target="_blank" >https://doi.org/10.1016/j.bsecv.2021.02.002</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.bsecv.2021.02.002" target="_blank" >10.1016/j.bsecv.2021.02.002</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Dielectric properties of Ce-doped YAG coatings produced by two techniques of plasma spraying

Popis výsledku v původním jazyce

Yttrium aluminum garnet (YAG) with cerium admixture (Ce:YAG) was plasma sprayed using two different devices - gas-stabilized plasma (GSP) torch and water-stabilized plasma (WSP) torch. Coatings on stainless steel as well as self-standing plates were produced. Besides microstructure and crystallographic characterizations, dielectric tests were performed on these coatings. They included capacitance (i.e. relative permittivity), loss tangent and volume resistivity measurements. After spraying, the YAG crystal phase was preserved without any decomposition, but an amorphous fraction was detected in the as-sprayed coatings deposited by both processes. The dielectric behavior of the coatings was influenced by imperfections like splat boundaries, pores and thin cracks. The Ce:YAG samples were successfully plasma sprayed by both spray techniques. Selected aspects of wear were measured and compared with a single-crystal. The dielectric properties are comparable with the single-crystal and highly promising, particularly the loss tangent with values so low that they were not found in any other as-sprayed ceramic coating.

Název v anglickém jazyce

Dielectric properties of Ce-doped YAG coatings produced by two techniques of plasma spraying

Popis výsledku anglicky

Yttrium aluminum garnet (YAG) with cerium admixture (Ce:YAG) was plasma sprayed using two different devices - gas-stabilized plasma (GSP) torch and water-stabilized plasma (WSP) torch. Coatings on stainless steel as well as self-standing plates were produced. Besides microstructure and crystallographic characterizations, dielectric tests were performed on these coatings. They included capacitance (i.e. relative permittivity), loss tangent and volume resistivity measurements. After spraying, the YAG crystal phase was preserved without any decomposition, but an amorphous fraction was detected in the as-sprayed coatings deposited by both processes. The dielectric behavior of the coatings was influenced by imperfections like splat boundaries, pores and thin cracks. The Ce:YAG samples were successfully plasma sprayed by both spray techniques. Selected aspects of wear were measured and compared with a single-crystal. The dielectric properties are comparable with the single-crystal and highly promising, particularly the loss tangent with values so low that they were not found in any other as-sprayed ceramic coating.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Boletin de la Sociedad Espanola de Ceramica y Vidrio

ISSN

0366-3175

e-ISSN

2173-0431

Svazek periodika

61

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

ES - Španělské království

Počet stran výsledku

9

Strana od-do

408-416

Kód UT WoS článku

000915307300003

EID výsledku v databázi Scopus

2-s2.0-85103630162