Synthesis and investigation of iron-doped manganese aluminate spinel nanopowders and ceramics

Vladimir V. Osipov; Vladislav A. Shitov; Vyacheslav V. Platonov; Vladimir I. Solomonov; Egor V. Tikhonov; Alexandr S. Korsakov

doi:10.1117/12.2598558

2 December 2021 Synthesis and investigation of iron-doped manganese aluminate spinel nanopowders and ceramics

Vladimir V. Osipov, Vladislav A. Shitov, Vyacheslav V. Platonov, Vladimir I. Solomonov, Egor V. Tikhonov, Alexandr S. Korsakov

Author Affiliations +

Proceedings Volume 12086, XV International Conference on Pulsed Lasers and Laser Applications; 120860C (2021) https://doi.org/10.1117/12.2598558
Event: XV International Conference on Pulsed Lasers and Laser Applications, 2021, Tomsk, Russian Federation

Abstract

The paper reports the results of initial research on the creating of a new laser active element based on manganese aluminate spinel. A technique for preparing iron-doped manganese aluminate spinel is described. Nanopowders with different Al/Mn ratios were obtained by laser ablation followed by vapor condensation in a carrier gas flow. It was found that the particles had an average size of 16.5 nm and a narrow (about 40 nm) size distribution. The compacts prepared from these nanopowders with a diameter of 14 mm and a thickness of 2 mm had a density of 50% of the theoretical one. The compacts were sintered in a vacuum at a temperature of 1300 °C for 3 hours. It is shown that to obtain a single-phase spinel, the molar ratio of Al/Mn cations in the nanopowder should be 1.2–1.75. The transmission spectra of the samples were measured and a transmission range of 2–8 μm and 5 absorption bands were found and the diagram of the lower levels of Fe²⁺ was plotted.

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Vladimir V. Osipov, Vladislav A. Shitov, Vyacheslav V. Platonov, Vladimir I. Solomonov, Egor V. Tikhonov, and Alexandr S. Korsakov "Synthesis and investigation of iron-doped manganese aluminate spinel nanopowders and ceramics", Proc. SPIE 12086, XV International Conference on Pulsed Lasers and Laser Applications, 120860C (2 December 2021); https://doi.org/10.1117/12.2598558

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