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|Title:||Synthesis, characterization and luminescent properties of Mg- A nd Cr-doped alumina ceramics|
|Authors:||Frolov, E. I.|
Zvonarev, S. V.
Moschensky, Y. V.
Chesnokov, K. Y.
Chukin, A. V.
Abramov, A. V.
Churkin, V. Y.
Moiseykin, E. V.
Obvintseva, N. V.
|Publisher:||American Institute of Physics Inc.|
|Citation:||Synthesis, characterization and luminescent properties of Mg- A nd Cr-doped alumina ceramics / E. I. Frolov, S. V. Zvonarev, Y. V. Moschensky, et al. — DOI 10.1063/5.0018319 // AIP Conference Proceedings. — 2020. — Vol. 2280. — 0018319.|
|Abstract:||Alumina ceramic doped with Mg and Cr is produced at high-temperature sintering under vacuum at varying annealing temperature and dopant concentration. A differential thermal analysis, X-ray fluorescence, and X-ray diffraction methods are used for sample characterization. The effect of the characteristics described above on the formation of different defects and luminescence centers in the samples was studied with a thermoluminescence method. An increase in the dopant concentration leads to an increase in the pulsed cathodoluminescence intensity of the dopant center in Mg-doped alumina ceramics and a decrease in Cr-doped alumina ceramics. The thermoluminescence intensity for Al2O3:Mg ceramics increases with magnesium concentration growth. The highest thermoluminescence intensity under a pulsed electron beam was obtained for ceramics with chromium (0.1 wt. %) annealed under vacuum at the temperature of 1500 °C for 2 hours. On thermoluminescence curves, one isolated peak at a temperature in the range of 645-665K was registered. © 2020 Author(s).|
|metadata.dc.description.sponsorship:||The reported study was funded by RFBR according to the research project No 18-33-00085.|
|Appears in Collections:||Научные публикации, проиндексированные в SCOPUS и WoS CC|
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