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Proceedings Paper

Sol-gel synthesis and characterization of yttrium gallium garnets
Author(s): Asta Leleckaite; Sigita Urbonaite; Kaia Tõnsuaadu; Aivaras Kareiva
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Paper Abstract

Precursor powders for yttrium gallium garnet (Y3Ga5O12, YGG) were prepared by a simple sol-gel method based on the formation of metal chelates in aqueous solvents. A systematic study of sol-gel technique synthesized YGG samples is presented using different complexing agents. Six high-purity organic substances were used as complexing agents, namely, tartaric acid, 1,2-ethanediol, citric acid, ethylene diamine tetra-acetic acid (EDTA), malonic acid, and oxalic acid. These agents were found to influence the characteristics of the end products, in particular their homogeneity. The phase purity, composition, and microstructure of the polycrystalline samples were studied by thermoanalytical methods (TGADTA), x-ray diffraction (XRD) analysis, IR spectroscopy, and scanning electron microscopy (SEM). From the typical XRD patterns of different synthesis products it is concluded that only the use tartaric acid, 1,2-ethanediol, citric acid, and EDTA yields a single YGG phase.

Paper Details

Date Published: 12 June 2006
PDF: 8 pages
Proc. SPIE 5946, Optical Materials and Applications, 594607 (12 June 2006); doi: 10.1117/12.639067
Show Author Affiliations
Asta Leleckaite, Vilnius Univ. (Lithuania)
Sigita Urbonaite, Stockholm Univ. (Sweden)
Kaia Tõnsuaadu, Tallinn Univ. of Technology (Estonia)
Aivaras Kareiva, Vilnius Univ. (Lithuania)

Published in SPIE Proceedings Vol. 5946:
Optical Materials and Applications
Arnold Rosental, Editor(s)

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