Solution Precursor Plasma Spraying of Cr-Doped Al2O3 Thermochromic Coatings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F20%3A00525634" target="_blank" >RIV/61389021:_____/20:00525634 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/20:00337093 RIV/00216275:25310/20:39915453

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s11666-019-00945-2" target="_blank" >https://link.springer.com/article/10.1007/s11666-019-00945-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11666-019-00945-2" target="_blank" >10.1007/s11666-019-00945-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Solution Precursor Plasma Spraying of Cr-Doped Al2O3 Thermochromic Coatings

Popis výsledku v původním jazyce

Solution precursor plasma spraying (SPPS) presents a modern route to deposit coatings directly from liquid feedstock. In this study, unique ability of SPPS to intermix different precursors on the atomic scale was employed to deposit pure and Cr-doped Al2O3 (technically, synthetic ruby) from several mixtures of aluminum and chromium nitrates. Highly porous coatings (> 60% porosity) were deposited by high-enthalpy WSP-H torch. Homogeneous distribution of Cr atoms in Al2O3 resulted in coatings color ranging from pink to grayish-green correlated with increasing Cr content and change of lattice parameters as observed by x-ray diffraction. High content of over 80 wt.% of α-alumina phase was reached for all coatings. For the Cr-doped Al2O3 coatings, distinct and fully reversible thermochromic behavior was observed by temperature-resolved colorimetry. Further increase in α-phase content (up to 95 wt.%) and coating densification were achieved by additional surface remelting by plasma torch.

Název v anglickém jazyce

Solution Precursor Plasma Spraying of Cr-Doped Al2O3 Thermochromic Coatings

Popis výsledku anglicky

Solution precursor plasma spraying (SPPS) presents a modern route to deposit coatings directly from liquid feedstock. In this study, unique ability of SPPS to intermix different precursors on the atomic scale was employed to deposit pure and Cr-doped Al2O3 (technically, synthetic ruby) from several mixtures of aluminum and chromium nitrates. Highly porous coatings (> 60% porosity) were deposited by high-enthalpy WSP-H torch. Homogeneous distribution of Cr atoms in Al2O3 resulted in coatings color ranging from pink to grayish-green correlated with increasing Cr content and change of lattice parameters as observed by x-ray diffraction. High content of over 80 wt.% of α-alumina phase was reached for all coatings. For the Cr-doped Al2O3 coatings, distinct and fully reversible thermochromic behavior was observed by temperature-resolved colorimetry. Further increase in α-phase content (up to 95 wt.%) and coating densification were achieved by additional surface remelting by plasma torch.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA19-10246S" target="_blank" >GA19-10246S: Depoziční mechanismy a vlastnosti vícefázových plazmových nástřiků připravených s pomocí kapalné fáze</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

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

—

Svazek periodika

29

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

199-211

Kód UT WoS článku

000495712700003

EID výsledku v databázi Scopus

2-s2.0-85075141950