Highly transparent ceramics with disordered crystal structure

V. V. Osipov, O. L. Khasanov, V. I. Solomonov, V. A. Shitov, A. N. Orlov, V. V. Platonov, A. V. Spirina, K. E. Luk'yashin, E. S. Dvilis

Innovation Centre for Nanomaterials and Nanotechnologies

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

A highly transparent ceramic has been synthesized from Nd³⁺:Y₂O₃ to which 6 mol. % ZrO₂ and 25 mol. % Sc₂O₃ or Lu₂O₃ were added for disordering the crystal structure. Nanopowders with an average particle size of 10-15 nm served as an initial material. They were compacted by the method of uniaxial static pressing combined with ultrasonic action on nanoparticles. The compacting pressure was 200 MPa; the power of the ultrasonic generator was 1.5 kW. It has been shown that the replacement of Y by isovalent Sc and Lu ions and by heterovalent Zr ions reduces the content of pores and the sizes of crystallites. The transparency of the Nd³⁺:Y₂O₃ ceramic with these additives reaches a maximum of 82.2%, and the 40% intensity level spectral band corresponding to the ⁴F_3/2 → ⁴I_11/2 transition widens from 11. 4 to 40 nm.

Original language	English
Pages (from-to)	263-269
Number of pages	7
Journal	Russian Physics Journal
Volume	53
Issue number	3
DOIs	https://doi.org/10.1007/s11182-010-9422-1
Publication status	Published - 9 Aug 2010

Keywords

ceramics
disordered structure
luminescence
Nanopowder
transmission

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1007/s11182-010-9422-1

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title = "Highly transparent ceramics with disordered crystal structure",

abstract = "A highly transparent ceramic has been synthesized from Nd3+:Y2O3 to which 6 mol. % ZrO2 and 25 mol. % Sc2O3 or Lu2O3 were added for disordering the crystal structure. Nanopowders with an average particle size of 10-15 nm served as an initial material. They were compacted by the method of uniaxial static pressing combined with ultrasonic action on nanoparticles. The compacting pressure was 200 MPa; the power of the ultrasonic generator was 1.5 kW. It has been shown that the replacement of Y by isovalent Sc and Lu ions and by heterovalent Zr ions reduces the content of pores and the sizes of crystallites. The transparency of the Nd3+:Y2O3 ceramic with these additives reaches a maximum of 82.2%, and the 40% intensity level spectral band corresponding to the 4F3/2 → 4I11/2 transition widens from 11. 4 to 40 nm.",

keywords = "ceramics, disordered structure, luminescence, Nanopowder, transmission",

author = "Osipov, {V. V.} and Khasanov, {O. L.} and Solomonov, {V. I.} and Shitov, {V. A.} and Orlov, {A. N.} and Platonov, {V. V.} and Spirina, {A. V.} and Luk'yashin, {K. E.} and Dvilis, {E. S.}",

year = "2010",

month = aug,

day = "9",

doi = "10.1007/s11182-010-9422-1",

language = "English",

volume = "53",

pages = "263--269",

journal = "Russian Physics Journal",

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AU - Osipov, V. V.

AU - Khasanov, O. L.

AU - Solomonov, V. I.

AU - Shitov, V. A.

AU - Orlov, A. N.

AU - Platonov, V. V.

AU - Spirina, A. V.

AU - Luk'yashin, K. E.

AU - Dvilis, E. S.

PY - 2010/8/9

Y1 - 2010/8/9

N2 - A highly transparent ceramic has been synthesized from Nd3+:Y2O3 to which 6 mol. % ZrO2 and 25 mol. % Sc2O3 or Lu2O3 were added for disordering the crystal structure. Nanopowders with an average particle size of 10-15 nm served as an initial material. They were compacted by the method of uniaxial static pressing combined with ultrasonic action on nanoparticles. The compacting pressure was 200 MPa; the power of the ultrasonic generator was 1.5 kW. It has been shown that the replacement of Y by isovalent Sc and Lu ions and by heterovalent Zr ions reduces the content of pores and the sizes of crystallites. The transparency of the Nd3+:Y2O3 ceramic with these additives reaches a maximum of 82.2%, and the 40% intensity level spectral band corresponding to the 4F3/2 → 4I11/2 transition widens from 11. 4 to 40 nm.

AB - A highly transparent ceramic has been synthesized from Nd3+:Y2O3 to which 6 mol. % ZrO2 and 25 mol. % Sc2O3 or Lu2O3 were added for disordering the crystal structure. Nanopowders with an average particle size of 10-15 nm served as an initial material. They were compacted by the method of uniaxial static pressing combined with ultrasonic action on nanoparticles. The compacting pressure was 200 MPa; the power of the ultrasonic generator was 1.5 kW. It has been shown that the replacement of Y by isovalent Sc and Lu ions and by heterovalent Zr ions reduces the content of pores and the sizes of crystallites. The transparency of the Nd3+:Y2O3 ceramic with these additives reaches a maximum of 82.2%, and the 40% intensity level spectral band corresponding to the 4F3/2 → 4I11/2 transition widens from 11. 4 to 40 nm.

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KW - disordered structure

KW - luminescence

KW - Nanopowder

KW - transmission

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