Production of Phosphorescent Coatings on 6082 Aluminum Using Sr0.95Eu0.02Dy0.03Al2O4-δ Powder and Plasma Electrolytic Oxidation
by
Krisjanis Auzins 1, Aleksejs Zolotarjovs 1, Ivita Bite 1, Katrina Laganovska 1, Virginija Vitola 1
, Krisjanis Smits 1,* and Donats Millers 1,2
Krisjanis Auzins 1, Aleksejs Zolotarjovs 1, Ivita Bite 1, Katrina Laganovska 1, Virginija Vitola 1, Krisjanis Smits 1,* and Donats Millers 1,2
1
Institute of Solid State Physics, University of Latvia, Kengaraga str. 8, LV-1063 Riga, Latvia
2
ElGoo Tech Ltd., Peldu str. 7, LV-3002 Jelgava, Latvia
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(12), 865; https://doi.org/10.3390/coatings9120865
Received: 28 October 2019 / Revised: 5 December 2019 / Accepted: 11 December 2019 / Published: 16 December 2019
(This article belongs to the Special Issue Plasma Electrolytic Oxidation (PEO) Coatings)
In this study, a new approach for producing phosphorescent aluminum coatings was studied. Using the plasma electrolytic oxidation (PEO) process, a porous oxide coating was produced on the Al6082 aluminum alloy substrate. Afterwards, activated strontium aluminate (SrAl2O4: Eu2+, Dy3+) powder was filled into the cavities and pores of the PEO coating, which resulted in a surface that exhibits long-lasting luminescence. The structural and optical properties were studied using XRD, SEM, and photoluminescence measurements. It was found that the treatment time affects the morphology of the coating, which influences the amount of strontium aluminate powder that can be incorporated into the coating and the resulting afterglow intensity.
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MDPI and ACS Style
Auzins, K.; Zolotarjovs, A.; Bite, I.; Laganovska, K.; Vitola, V.; Smits, K.; Millers, D. Production of Phosphorescent Coatings on 6082 Aluminum Using Sr0.95Eu0.02Dy0.03Al2O4-δ Powder and Plasma Electrolytic Oxidation. Coatings 2019, 9, 865.
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