TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
AU  - Ristić, Zoran
AU  - Antić, Željka
AU  - Dramićanin, Miroslav
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9883
AB  - Thermographic properties of Cr3+-doped Al2O3 coatings created by plasma electrolytic oxidation (PEO) are investigated. Scanning electron microscopy revealed dense coatings uniformly distributed over the aluminum surface with uniform elemental maps, confirming homogeneous distribution of chromium ions. X-ray diffraction analysis shows that created coatings consist of a mixture of alpha and gamma phase of alumina and that alpha-to-gamma phase ratio increases with PEO processing time. Room-temperature photoluminescent measurements revealed two deep-red, sharp emissions placed at 694 nm (R1 line) and 693 nm (R2 line) typical for Cr3+ in Al2O3 octahedral configuration. No evidence of broad 680−800 nm emission typical for alumina gamma phase is observed and emissions were predominantly attributed to the ruby α-Al2O3:Cr3+. The temperature is obtained from the coating’s emission using temperature-induced changes in: i) band shift of the R1 line, (ii) luminescence intensity ratio (LIR) between two Cr3+ R1,2 lines, and (iii) lifetime of the Cr3+ red emission with maximal sensitivities of 0.2 cm−1 K−1 @ 550 K, 4.8 % K−1 @ 20 K and 0.9 % K−1 @ 450 K, respectively.
T2  - Sensors and Actuators A: Physical
T1  - Temperature sensing using ruby coatings created by plasma electrolytic oxidation
VL  - 331
SP  - 112987
DO  - 10.1016/j.sna.2021.112987
ER  - 

@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan and Ristić, Zoran and Antić, Željka and Dramićanin, Miroslav",
year = "2021",
abstract = "Thermographic properties of Cr3+-doped Al2O3 coatings created by plasma electrolytic oxidation (PEO) are investigated. Scanning electron microscopy revealed dense coatings uniformly distributed over the aluminum surface with uniform elemental maps, confirming homogeneous distribution of chromium ions. X-ray diffraction analysis shows that created coatings consist of a mixture of alpha and gamma phase of alumina and that alpha-to-gamma phase ratio increases with PEO processing time. Room-temperature photoluminescent measurements revealed two deep-red, sharp emissions placed at 694 nm (R1 line) and 693 nm (R2 line) typical for Cr3+ in Al2O3 octahedral configuration. No evidence of broad 680−800 nm emission typical for alumina gamma phase is observed and emissions were predominantly attributed to the ruby α-Al2O3:Cr3+. The temperature is obtained from the coating’s emission using temperature-induced changes in: i) band shift of the R1 line, (ii) luminescence intensity ratio (LIR) between two Cr3+ R1,2 lines, and (iii) lifetime of the Cr3+ red emission with maximal sensitivities of 0.2 cm−1 K−1 @ 550 K, 4.8 % K−1 @ 20 K and 0.9 % K−1 @ 450 K, respectively.",
journal = "Sensors and Actuators A: Physical",
title = "Temperature sensing using ruby coatings created by plasma electrolytic oxidation",
volume = "331",
pages = "112987",
doi = "10.1016/j.sna.2021.112987"
}

Ćirić, A., Stojadinović, S., Ristić, Z., Antić, Ž.,& Dramićanin, M.. (2021). Temperature sensing using ruby coatings created by plasma electrolytic oxidation. in Sensors and Actuators A: Physical, 331, 112987.
https://doi.org/10.1016/j.sna.2021.112987

Ćirić A, Stojadinović S, Ristić Z, Antić Ž, Dramićanin M. Temperature sensing using ruby coatings created by plasma electrolytic oxidation. in Sensors and Actuators A: Physical. 2021;331:112987.
doi:10.1016/j.sna.2021.112987 .

Ćirić, Aleksandar, Stojadinović, Stevan, Ristić, Zoran, Antić, Željka, Dramićanin, Miroslav, "Temperature sensing using ruby coatings created by plasma electrolytic oxidation" in Sensors and Actuators A: Physical, 331 (2021):112987,
https://doi.org/10.1016/j.sna.2021.112987 . .