Stable garnets in the Er2O3–Sc2O3–Al2O3 oxide system for optical ceramics application

Stable garnets in the Er2O3–Sc2O3–Al2O3 oxide system for optical ceramics application

Erbium-scandium-aluminum garnets (ErSAG) with the maximum possible concentrations of scandium cations in the dodecahedral and octahedral positions of the crystal lattice have been synthesized. It has been established that in ErSAG at a temperature of 1600 °C the maximum possible concentration of sca...

Full description

Saved in:
Bibliographic Details
Published in:Ceramics international Vol. 48; no. 24; pp. 36739 - 36747
Main Authors: Nikova, M.S., Tarala, V.A., Kravtsov, A.A., Chikulina, I.S., Vakalov, D.S., Tarala, L.V., Kichuk, S.N., Malyavin, F.F., Kozhitov, L.V., Kuznetsov, S.V.
Format: Journal Article
Language:English
Published: Elsevier Ltd 15-12-2022
Subjects:
ErSAG
Garnet
Oxide
Scandium
Solid solution
Solubility limits
Stability region
XRD
Oxide
Garnet
Solubility limits
Scandium
XRD
Stability region
Solid solution
ErSAG
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Erbium-scandium-aluminum garnets (ErSAG) with the maximum possible concentrations of scandium cations in the dodecahedral and octahedral positions of the crystal lattice have been synthesized. It has been established that in ErSAG at a temperature of 1600 °C the maximum possible concentration of scandium in the dodecahedral and octahedral position reaches 64.7 ± 2.0 at. % and 92.0 ± 2.0 at. %, respectively. The maximum possible concentrations of scandium cations in the dodecahedral position and the set of range of possible ErSAG compositions decrease at increasing of calcination temperature. It was shown that ceramics technique allow to produce the optical ceramics with compositions {Er1.5Sc1.5}[Sc0.2Al1.8](Al3)O12 (SAG: Er 50 at%) and {Y1.57Er0.03Sc1.4}[Sc0.2Al1.8](Al3)O12 (YSAG: Er 1 at%), which can be considered as analogs of yttrium-aluminum garnet single crystals (YAG: Er 50 at% and YAG: Er 1 at%).
ISSN:0272-8842
1873-3956
DOI:10.1016/j.ceramint.2022.08.235