Solution Precursor Plasma Spraying of Cr-Doped Al2O3 Thermochromic Coatings

Result code in 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>
Alternative codes found
RIV/68407700:21340/20:00337093 RIV/00216275:25310/20:39915453
Result on the web
<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>

Result language
angličtina
Original language name
Solution Precursor Plasma Spraying of Cr-Doped Al2O3 Thermochromic Coatings
Original language description
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.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20501 - Materials engineering

Project
<a href="/en/project/GA19-10246S" target="_blank" >GA19-10246S: Deposition mechanisms and properties of multiphase plasma sprayed coatings prepared with liquid feedstocks</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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