Preparation, Characterization and Magneto-Optical Properties of Sm-Doped Y2O3 Polycrystalline Material

In this paper, physicochemical properties of pure Y2O3 and samarium (Sm)-doped Y2O3 transparent ceramics obtained via arc plasma melting are presented. Yttria powder with a selected molar fraction of Sm was first synthesized by a solid-state reaction method. High transparent yttria ceramics were obt...

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Bibliographic Details
Published in:Micromachines (Basel) 2022-12, Vol.13 (12), p.2254
Main Authors: Kruk, Andrzej, Ziewiec, Krzysztof
Format: Article
Language:English
Subjects:
Absorption spectra
arc plasma melting
Ceramic powders
Ceramics
Electric arc melting
Lasers
Light
luminescence
Magnetic fields
Magnetic properties
magneto-optical properties
Optical measurement
Optical properties
Physical properties
Plasma sintering
Polycrystals
Radiation
Room temperature
Samarium
Software
Spectrum analysis
Symmetry
transparent ceramics
Verdet constant
X-rays
Y2O3
Yttrium oxide
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Summary:In this paper, physicochemical properties of pure Y2O3 and samarium (Sm)-doped Y2O3 transparent ceramics obtained via arc plasma melting are presented. Yttria powder with a selected molar fraction of Sm was first synthesized by a solid-state reaction method. High transparent yttria ceramics were obtained by arc plasma melting from both the pure and Sm oxide-doped powders. The morphological, chemical and physical properties were investigated by X-ray diffraction and scanning electron microscopy. The optical band gap was calculated from the absorption spectra so as to understand the electronic band structure of the studied materials. Samples indicate a series of luminescence bands in the visible region after excitation by laser light in the range from 210 to 250 nm. Magneto-optical measurements were carried out in the 300–800 nm range at room temperature. It can be seen that a maximum Verdet constant ca. 24.81 deg/T cm was observed for 405 nm and this value decreases with increasing wavelength. The potential usefulness of the polycrystalline material dedicated to optics devices is presented.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi13122254