Sol-gel synthesis and characterization of yttrium gallium garnets

Asta Leleckaite; Sigita Urbonaite; Kaia Tõnsuaadu; Aivaras Kareiva

doi:10.1117/12.639067

12 June 2006 Sol-gel synthesis and characterization of yttrium gallium garnets

Asta Leleckaite, Sigita Urbonaite, Kaia Tõnsuaadu, Aivaras Kareiva

Proceedings Volume 5946, Optical Materials and Applications; 594607 (2006) https://doi.org/10.1117/12.639067
Event: Optical Materials and Applications, 2005, Tartu, Estonia

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.

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Asta Leleckaite, Sigita Urbonaite, Kaia Tõnsuaadu, and Aivaras Kareiva "Sol-gel synthesis and characterization of yttrium gallium garnets", Proc. SPIE 5946, Optical Materials and Applications, 594607 (12 June 2006); https://doi.org/10.1117/12.639067

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