Synthesis and Investigation of Magnesium–Aluminum Nanopowders and Ceramics Activated by Copper

Nanopowders of two crystalline phases, magnesium–aluminum spinel (98 wt %), and cuprite (2 wt %) have been obtained by laser evaporation of a solid target, which is a mechanical mixture of simple oxides (MgO, Al 2 O 3 , CuO). These nanopowders have been used to prepare test samples of transparent Cu...

Full description

Saved in:
Bibliographic Details
Published in:Technical physics 2021, Vol.66 (1), p.149-154
Main Authors: Osipov, V. V., Solomonov, V. I., Podkin, A. V., Shitov, V. A., Tikhonov, E. V., Korsakov, A. S.
Format: Article
Language:English
Subjects:
Absorption spectra
Aluminum
Aluminum oxide
Ceramic materials
Ceramics
Classical and Continuum Physics
Copper
Copper oxide
Cuprite
Experimental Instruments and Technique
Investigations
Magnesium
Physics
Physics and Astronomy
Spinel group
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Nanopowders of two crystalline phases, magnesium–aluminum spinel (98 wt %), and cuprite (2 wt %) have been obtained by laser evaporation of a solid target, which is a mechanical mixture of simple oxides (MgO, Al 2 O 3 , CuO). These nanopowders have been used to prepare test samples of transparent Cu:MgAl 2 O 4 ceramics, the IR transmission spectra of which revealed two new strong absorption bands at λ 1  ≈ 1.55 (1.45) μm and λ 2 ≈ 3.45 (3.03) μm, corresponding to transitions between the Stark levels 2 E( e 3 ) and 2 T 2 ( e 4 ) of Cu 2+ ions in octahedral and tetrahedral positions, respectively.
ISSN:1063-7842
1090-6525
DOI:10.1134/S1063784221010151