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.
Original language | English |
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Pages (from-to) | 263-269 |
Number of pages | 7 |
Journal | Russian Physics Journal |
Volume | 53 |
Issue number | 3 |
DOIs | |
Publication status | Published - 9 Aug 2010 |
Keywords
- ceramics
- disordered structure
- luminescence
- Nanopowder
- transmission
ASJC Scopus subject areas
- Physics and Astronomy(all)