Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Preparation of Y3Al5O12 Nanocrystals by a Glycol Route

  • Bartwal, Kunwar Singh (Advanced Materials Division, Korea Research Institute of Chemical Technology) ;
  • Kar, Sujan (Laser Materials Development and Devices Division, Raja Ramanna Centre for Advanced Technology) ;
  • Kaithwas, Nanda (Halkar Science College) ;
  • Deshmukh, Monica (Halkar Science College) ;
  • Dave, Mangla (Halkar Science College) ;
  • Ryu, Ho-Jin (Advanced Materials Division, Korea Research Institute of Chemical Technology)
  • Published : 2007.05.31
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Abstract

Yttrium aluminum garnet, $Y_3Al_5O_{12}$ (YAG) is an extensively used solid-state laser host material. YAG nanocrystals were synthesized using low-temperature glycol method, a modified sol-gel method performed at low temperature that consists of a mixture of salts that are mostly nitrates in an aqueous media. Single-phase nanocrystalline YAG was obtained at $850^{\circ}C$, which is a much lower temperature than with other techniques such as a wet-chemical technique. The structural characterization is done by powder X-ray diffraction, scanning electron microscopy and transmission electron microscopy. A crystallite size range of 20-50 nm was observed for the materials prepared at $850-950^{\circ}C$.

Keywords

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